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1.  A Primary Care–Based, Multicomponent Lifestyle Intervention for Overweight Adolescent Females 
Pediatrics  2012;129(3):e611-e620.
BACKGROUND AND OBJECTIVE:
Most clinic-based weight control treatments for youth have been designed for preadolescent children by using family-based care. However, as adolescents become more autonomous and less motivated by parental influence, this strategy may be less appropriate. This study evaluated a primary care–based, multicomponent lifestyle intervention specifically tailored for overweight adolescent females.
METHODS:
Adolescent girls (N = 208) 12 to 17 years of age (mean ± SD: 14.1 ± 1.4 years), with a mean ± SD BMI percentile of 97.09 ± 2.27, were assigned randomly to the intervention or usual care control group. The gender and developmentally tailored intervention included a focus on adoptable healthy lifestyle behaviors and was reinforced by ongoing feedback from the teen’s primary care physician. Of those randomized, 195 (94%) completed the 6-month posttreatment assessment, and 173 (83%) completed the 12-month follow-up. The primary outcome was reduction in BMI z score.
RESULTS:
The decrease in BMI z score over time was significantly greater for intervention participants compared with usual care participants (−0.15 in BMI z score among intervention participants compared with −0.08 among usual care participants; P = .012). The 2 groups did not differ in secondary metabolic or psychosocial outcomes. Compared with usual care, intervention participants reported less reduction in frequency of family meals and less fast-food intake.
CONCLUSIONS:
A 5-month, medium-intensity, primary care–based, multicomponent behavioral intervention was associated with significant and sustained decreases in BMI z scores among obese adolescent girls compared with those receiving usual care.
doi:10.1542/peds.2011-0863
PMCID: PMC3289521  PMID: 22331335
adolescent obesity; behavioral intervention; primary care; randomized controlled trial; weight management
2.  Early Childhood Family Intervention and Long-term Obesity Prevention Among High-risk Minority Youth 
Pediatrics  2012;129(3):e621-e628.
OBJECTIVES:
To test the hypothesis that family intervention to promote effective parenting in early childhood affects obesity in preadolescence.
METHODS:
Participants were 186 minority youth at risk for behavior problems who enrolled in long-term follow-up studies after random assignment to family intervention or control condition at age 4. Follow-up Study 1 included 40 girls at familial risk for behavior problems; Follow-up Study 2 included 146 boys and girls at risk for behavior problems based on teacher ratings. Family intervention aimed to promote effective parenting and prevent behavior problems during early childhood; it did not focus on physical health. BMI and health behaviors were measured an average of 5 years after intervention in Study 1 and 3 years after intervention in Study 2.
RESULTS:
Youth randomized to intervention had significantly lower BMI at follow-up relative to controls (Study 1 P = .05; Study 2 P = .006). Clinical impact is evidenced by lower rates of obesity (BMI ≥95th percentile) among intervention girls and boys relative to controls (Study 2: 24% vs 54%, P = .002). There were significant intervention-control group differences on physical and sedentary activity, blood pressure, and diet.
CONCLUSIONS:
Two long-term follow-up studies of randomized trials show that relative to controls, youth at risk for behavior problems who received family intervention at age 4 had lower BMI and improved health behaviors as they approached adolescence. Efforts to promote effective parenting and prevent behavior problems early in life may contribute to the reduction of obesity and health disparities.
doi:10.1542/peds.2011-1568
PMCID: PMC3289522  PMID: 22311988
obesity; prevention; child; early childhood; families
3.  Antenatal Antecedents of Cognitive Impairment at 24 Months In Extremely Low Gestational Age Newborns 
Pediatrics  2012;129(3):494-502.
BACKGROUND AND OBJECTIVES:
Extremely low gestational age neonates are more likely than term infants to develop cognitive impairment. Few studies have addressed antenatal risk factors of this condition. We identified antenatal antecedents of cognitive impairment determined by the Mental Development Index (MDI) portion of the Bayley Scales of Infant Development, Second Edition (BSID-II), at 24 months corrected age.
METHODS:
We studied a multicenter cohort of 921 infants born before 28 weeks of gestation during 2002 to 2004 and assessed their placentas for histologic characteristics and microorganisms. The mother was interviewed and her medical record was reviewed. At 24 months adjusted age, children were assessed with BSID-II. Multinomial logistic models were used to estimate odds ratios.
RESULTS:
A total of 103 infants (11%) had an MDI <55, and 99 infants (11%) had an MDI between 55 and 69. No associations were identified between organisms recovered from the placenta and developmental delay. Factors most strongly associated with MDI <55 were thrombosis of fetal vessels (OR 3.1; 95% confidence interval [CI] 1.2, 7.7), maternal BMI >30 (OR 2.0; 95% CI 1.1, 3.5), maternal education ≤12 years (OR 3.4; 95% CI 1.9, 6.2), nonwhite race (OR 2.2; 95% CI 1.3, 3.8), birth weight z score < −2 (OR 2.8; 95% CI 1.1, 6.9), and male gender (OR 2.7; 95% CI 1.6, 4.5).
CONCLUSIONS:
Antenatal factors, including thrombosis of fetal vessels in the placenta, severe fetal growth restriction, and maternal obesity, convey information about the risk of cognitive impairment among extremely premature newborns.
doi:10.1542/peds.2011-1796
PMCID: PMC3289523  PMID: 22331342
prematurity; placenta; chorioamnionitis; fetal growth restriction; mental development
4.  Childhood Gender Nonconformity: A Risk Indicator for Childhood Abuse and Posttraumatic Stress in Youth 
Pediatrics  2012;129(3):410-417.
OBJECTIVES:
Childhood gender nonconformity has been associated with poorer relationships with parents, but it is unknown if childhood gender nonconformity is associated with childhood abuse or risk of posttraumatic stress disorder (PTSD) in youth.
METHODS:
We examined whether gender nonconformity before age 11 years was associated with childhood sexual, physical, and psychological abuse and lifetime risk of probable PTSD by using self-report questionnaire data from the 2007 wave of the Growing Up Today Study (n = 9864, mean age = 22.7 years), a longitudinal cohort of US youth. We further examined whether higher exposure to childhood abuse mediated possible elevated prevalence of PTSD in nonconforming children. Finally, we examined whether association of childhood gender nonconformity with PTSD was independent of sexual orientation.
RESULTS:
Exposure to childhood physical, psychological, and sexual abuse, and probable PTSD were elevated in youth in the top decile of childhood gender nonconformity compared with youth below median nonconformity. Abuse victimization disparities partly mediated PTSD disparities by gender nonconformity. Gender nonconformity predicted increased risk of lifetime probable PTSD in youth after adjustment for sexual orientation.
CONCLUSIONS:
We identify gender nonconformity as an indicator of children at increased risk of abuse and probable PTSD. Pediatricians and school health providers should consider abuse screening for this vulnerable population. Further research to understand how gender nonconformity might increase risk of abuse and to develop family interventions to reduce abuse risk is needed.
doi:10.1542/peds.2011-1804
PMCID: PMC3289524  PMID: 22351893
child abuse; gender nonconformity; femininity; masculinity; posttraumatic stress disorders; sexual orientation
5.  Resilience in Children Undergoing Stem Cell Transplantation: Results of a Complementary Intervention Trial 
Pediatrics  2012;129(3):e762-e770.
BACKGROUND:
Children undergoing stem cell transplantation (SCT) are thought to be at risk for increased distress, adjustment difficulties, and impaired health-related quality of life (HRQL). We report results of a multisite trial designed to improve psychological adjustment and HRQL in children undergoing SCT.
METHODS:
A total of 171 patients and parents from 4 sites were randomized to receive a child-targeted intervention; a child and parent intervention; or standard care. The child intervention included massage and humor therapy; the parent intervention included massage and relaxation/imagery. Outcomes included symptoms of depression and posttraumatic stress, HRQL, and benefit finding. Assessments were conducted by patient and parent report at admission and SCT week+24.
RESULTS:
Across the sample, significant improvements were seen on all outcomes from admission to week+24. Surprisingly, patients who had SCT reported low levels of adjustment difficulties at admission, and improved to normative or better than average levels of adjustment and HRQL at week+24. Benefit finding was high at admission and increased at week+24; however, there were no statistically significant differences between intervention arms for any of the measures.
CONCLUSIONS:
Although the results do not support the benefits of these complementary interventions in pediatric SCT, this may be explained by the remarkably positive overall adjustment seen in this sample. Improvements in supportive care, and a tendency for patients to find benefit in the SCT experience, serve to promote positive outcomes in children undergoing this procedure, who appear particularly resilient to the challenge.
doi:10.1542/peds.2011-1816
PMCID: PMC3289525  PMID: 22311995
stem cell transplantation; children; depression; posttraumatic stress; resilience
6.  Prospective Analysis of Pulmonary Hypertension in Extremely Low Birth Weight Infants 
Pediatrics  2012;129(3):e682-e689.
OBJECTIVES:
Pulmonary hypertension is associated with bronchopulmonary dysplasia in extremely low birth weight (ELBW) infants and contributes to morbidity and mortality. The objective was to determine the prevalence of pulmonary hypertension among ELBW infants by screening echocardiography and evaluate subsequent outcomes.
METHODS:
All ELBW infants admitted to a regional perinatal center were evaluated for pulmonary hypertension with echocardiography at 4 weeks of age and subsequently if clinical signs suggestive of right-sided heart failure or severe lung disease were evident. Management was at discretion of the clinician, and infants were evaluated until discharge from the hospital or pre-discharge death occurred.
RESULTS:
One hundred forty-five ELBW infants (birth weight: 755 ± 144 g; median gestational age: 26 weeks [interquartile range: 24–27]) were screened from December 2008 to February 2011. Overall, 26 (17.9%) were diagnosed with pulmonary hypertension at any time during hospitalization (birth weight: 665 ± 140 g; median gestational age: 26 weeks [interquartile range: 24–27]): 9 (6.2%) by initial screening (early pulmonary hypertension) and 17 (11.7%) who were identified later (late pulmonary hypertension). Infants with pulmonary hypertension were more likely to receive oxygen treatment on day 28 compared with those without pulmonary hypertension (96% vs 75%, P < .05). Of the 26 infants, 3 died (all in the late group because of cor pulmonale) before being discharged from the hospital.
CONCLUSIONS:
Pulmonary hypertension is relatively common, affecting at least 1 in 6 ELBW infants, and persists to discharge in most survivors. Routine screening of ELBW infants with echocardiography at 4 weeks of age identifies only one-third of the infants diagnosed with pulmonary hypertension. Further research is required to determine optimal detection and intervention strategies.
doi:10.1542/peds.2011-1827
PMCID: PMC3289526  PMID: 22311993
premature infant; bronchopulmonary dysplasia; pulmonary hypertension
7.  A Statewide Trial of the SafeCare Home-based Services Model With Parents in Child Protective Services 
Pediatrics  2012;129(3):509-515.
OBJECTIVES:
In this trial, we compared Child Protective Services (CPS) recidivism outcomes between the home-based SafeCare (SC) model for child neglect and comparable home-based services, but without SC modules, for parents in the CPS system across 2 quality control strategies: coached (C) and uncoached implementation. SC is a home-based behavioral skills training model designed for neglecting or maltreating parents. The study was conducted in a scaled-up, statewide implementation setting.
METHODS:
Two thousand one hundred seventy-five maltreating parents, treated by 219 home visitors, were enrolled and treated in a 2 × 2 (SC versus services as usual × C versus uncoached implementation strategy) randomized cluster experiment. Cases were followed for an average of 6 years for CPS recidivism events. Subpopulation analyses were conducted for parents meeting customary SC inclusion criteria.
RESULTS:
Consistently significant main effects in favor of SC were found across simple and more complex modeling approaches (hazard ratios = 0.74–0.83). Larger effects were found among the subpopulation meeting customary SC inclusion criteria. C implementation yielded smaller and occasionally significant effects in analyses that included more diverse cases falling outside customary SC inclusion criteria.
CONCLUSIONS:
Findings support the adoption and use of SC within CPS home-based services systems. C implementation may be especially valuable for cases where the client-model fit is less strong.
doi:10.1542/peds.2011-1840
PMCID: PMC3289527  PMID: 22351883
parenting; Child Protective Services; child neglect
8.  Impact of an Active Video Game on Healthy Children’s Physical Activity 
Pediatrics  2012;129(3):e636-e642.
OBJECTIVE:
This naturalistic study tests whether children receiving a new (to them) active video game spontaneously engage in more physical activity than those receiving an inactive video game, and whether the effect would be greater among children in unsafe neighborhoods, who might not be allowed to play outside.
METHODS:
Participants were children 9 to 12 years of age, with a BMI >50th percentile, but <99th percentile; none of these children a medical condition that would preclude physical activity or playing video games. A randomized clinical trial assigned children to receiving 2 active or 2 inactive video games, the peripherals necessary to run the games, and a Wii console. Physical activity was monitored by using accelerometers for 5 weeks over the course of a 13-week experiment. Neighborhood safety was assessed with a 12 item validated questionnaire.
RESULTS:
There was no evidence that children receiving the active video games were more active in general, or at anytime, than children receiving the inactive video games. The outcomes were not moderated by parent perceived neighborhood safety, child BMI z score, or other demographic characteristics.
CONCLUSIONS:
These results provide no reason to believe that simply acquiring an active video game under naturalistic circumstances provides a public health benefit to children.
doi:10.1542/peds.2011-2050
PMCID: PMC3289528  PMID: 22371457
exergames; Wii
9.  Longitudinal Follow-up of Poor Inner-city Youth Between Ages 8 and 18: Intentions Versus Reality 
Pediatrics  2012;129(3):473-479.
OBJECTIVES:
(1) To document, at ages 8 to 10, children’s perceptions of their future and, at ages 16 to 18, youth outcomes; and (2) to assess early childhood factors associated with trajectory-altering events (TAEs), defined as youth risk behaviors that may modify developmental trajectories.
METHODS:
A prospective longitudinal study of 97 poor, inner-city, African American youth followed since birth who completed (1) early childhood environment, cognitive, and social-emotional evaluations, as well as an inventory at ages 8 to 10 of perceptions of their futures; and (2) evaluation for presence or absence of 4 TAEs documented at ages 16 to 18: drug use, adjudication, school failure, and teen parenthood.
RESULTS:
At age 9.4 ± 0.5, 94% of participants felt it unlikely they would try marijuana; 93% felt they were unlikely to get arrested; 92% felt they were likely to attend college or trade school; 81% did not know one could become pregnant with first-time sex. Age 18.1 ± 0.8 outcomes showed that 33% had used drugs, 33% had been adjudicated, 19% had school failure, and 20% had become parents. Fifty-six percent had ≥1 TAE. No relationship was found between childhood perceptions and intentions and documented outcomes. Odds of having a TAE increased with greater exposure to violence and poorer home environment.
CONCLUSIONS:
Young inner-city children are idealistic regarding their future. By ages 16 to 18 however, more than half of this cohort had a TAE. Factors most strongly associated with a TAE were greater exposure to violence and poorer home environment.
doi:10.1542/peds.2011-2111
PMCID: PMC3289529  PMID: 22351882
poverty; urban population; home environment; early intervention; risk taking
10.  Enrollment of Extremely Low Birth Weight Infants in a Clinical Research Study May Not Be Representative 
Pediatrics  2012;129(3):480-484.
BACKGROUND AND OBJECTIVE:
The Surfactant Positive Airway Pressure and Pulse Oximetry Randomized Trial (SUPPORT) antenatal consent study demonstrated that mothers of infants enrolled in the SUPPORT trial had significantly different demographics and exposure to antenatal steroids compared with mothers of eligible, but not enrolled infants. The objective of this analysis was to compare the outcomes of bronchopulmonary dysplasia, severe retinopathy of prematurity, severe intraventricular hemorrhage or periventricular leukomalacia (IVH/PVL), death, and death/severe IVH/PVL for infants enrolled in SUPPORT in comparison with eligible, but not enrolled infants.
METHODS:
Perinatal characteristics and neonatal outcomes were compared for enrolled and eligible but not enrolled infants in bivariate analyses. Models were created to test the effect of enrollment in SUPPORT on outcomes, controlling for perinatal characteristics.
RESULTS:
There were 1316 infants enrolled in SUPPORT; 3053 infants were eligible, but not enrolled. In unadjusted analyses, enrolled infants had significantly lower rates of death before discharge, severe IVH/PVL, death/severe IVH/PVL (all < 0.001), and bronchopulmonary dysplasia (P = .003) in comparison with eligible, but not enrolled infants. The rate of severe retinopathy of prematurity was not significantly different. After adjustment for perinatal factors, enrollment in the trial was not a significant predictor of any of the tested clinical outcomes.
CONCLUSIONS:
The results of this analysis demonstrate significant outcome differences between enrolled and eligible but not enrolled infants in a trial using antenatal consent, which were likely due to enrollment bias resulting from the antenatal consent process. Additional research and regulatory review need to be conducted to ensure that large moderate-risk trials that require antenatal consent can be conducted in such a way as to ensure the generalizability of results.
doi:10.1542/peds.2011-2121
PMCID: PMC3289530  PMID: 22371462
antenatal steroids; clinical research/trials; informed consent; neonatal
11.  Toward a Unifying Hypothesis of Metabolic Syndrome 
Pediatrics  2012;129(3):557-570.
Despite a lack of consistent diagnostic criteria, the metabolic syndrome (MetS) is increasingly evident in children and adolescents, portending a tsunami of chronic disease and mortality as this generation ages. The diagnostic criteria for MetS apply absolute cutoffs to continuous variables and fail to take into account aging, pubertal changes, and race/ethnicity. We attempt to define MetS mechanistically to determine its specific etiologies and to identify targets for therapy. Whereas the majority of studies document a relationship of visceral fat to insulin resistance, ectopic liver fat correlates better with dysfunctional insulin dynamics from which the rest of MetS derives. In contrast to the systemic metabolism of glucose, the liver is the primary metabolic clearinghouse for 4 specific foodstuffs that have been associated with the development of MetS: trans-fats, branched-chain amino acids, ethanol, and fructose. These 4 substrates (1) are not insulin regulated and (2) deliver metabolic intermediates to hepatic mitochondria without an appropriate “pop-off” mechanism for excess substrate, enhancing lipogenesis and ectopic adipose storage. Excessive fatty acid derivatives interfere with hepatic insulin signal transduction. Reactive oxygen species accumulate, which cannot be quenched by adjacent peroxisomes; these reactive oxygen species reach the endoplasmic reticulum, leading to a compensatory process termed the “unfolded protein response,” driving further insulin resistance and eventually insulin deficiency. No obvious drug target exists in this pathway; thus, the only rational therapeutic approaches remain (1) altering hepatic substrate availability (dietary modification), (2) reducing hepatic substrate flux (high fiber), or (3) increasing mitochondrial efficiency (exercise).
doi:10.1542/peds.2011-2912
PMCID: PMC3289531  PMID: 22351884
metabolic syndrome; insulin resistance; dyslipidemia; hypertension; diabetes; pediatrics
12.  Impact of State Laws That Extend Eligibility for Parents’ Health Insurance Coverage to Young Adults 
Pediatrics  2012;129(3):426-432.
BACKGROUND AND OBJECTIVES:
The 2010 Affordable Care Act mandates that health insurance companies make those up to age 26 eligible for their parents’ policies. Thirty-four states previously enacted similar laws. The authors sought to examine the impact on access to care of state laws extending eligibility of parents’ insurance to young adults.
METHODS:
By using a difference-in-differences analysis, we examined the 2002–2004 and 2008–2009 Behavior Risk Factor Surveillance System to compare 3 states enacting laws in 2005 or 2006 with 17 states that have not enacted laws on 4 outcomes: self-reported health insurance coverage, identification of a personal physician/clinician, physical exam from a physician within the past 2 years, and forgoing care in the past year due to cost.
RESULTS:
For each outcome there was differential improvement among states enacting laws compared with states without laws. Health insurance differentially increased 0.2% (95% confidence interval [CI], −3.8% to 4.2%), from 67.6% to 68.1% pre-post in states enacting laws and from 68.5% to 68.7% in states without. Personal physician/clinician identification differentially increased 0.9% (95% CI −3.1% to 5.0%), from 62.4% to 65.5% in states enacting laws and from 58.0% to 60.2% in states without. Recent physical exams differentially increased significantly 4.6% (95% CI, 0%–9.2%), from 77.3% to 81.2% in states enacting laws and from 76.2% to 75.5% in states without. Forgone care due to cost differentially decreased significantly 3.9% (95% CI, −0.3% to −7.5%), from 20.4% to 18.2% in states enacting laws and from 17.8% to 19.4% in states without.
CONCLUSIONS:
States that expanded eligibility to parents’ insurance in 2005 or 2006 experienced improvements in access to care among young adults.
doi:10.1542/peds.2011-1505
PMCID: PMC3356137  PMID: 22331339
parental insurance; state laws; Affordable Care Act
13.  Hemodynamic Effects of Delayed Cord Clamping in Premature Infants 
Pediatrics  2012;129(3):e667-e672.
BACKGROUND AND OBJECTIVE:
Delayed cord clamping (DCC) has been advocated during preterm delivery to improve hemodynamic stability during the early neonatal period. The hemodynamic effects of DCC in premature infants after birth have not been previously examined. Our objective was to compare the hemodynamic differences between premature infants randomized to either DCC or immediate cord clamping (ICC).
METHODS:
This prospective study was conducted on a subset of infants who were enrolled in a randomized controlled trial to evaluate the effects of DCC versus ICC. Entry criteria included gestational ages of 240 to 316 weeks. Twins and infants of mothers with substance abuse were excluded. Serial Doppler studies were performed at 6 ± 2, 24 ± 4, 48 ± 6, and 108 ± 12 hours of life. Measurements included superior vena cava blood flow, right ventricle output, middle cerebral artery blood flow velocity (BFV), superior mesenteric artery BFV, left ventricle shortening fraction, and presence of a persistent ductus arteriosus.
RESULTS:
Twenty-five infants were enrolled in the DCC group and 26 in the ICC group. Gestational age, birth weight, and male gender were similar. Admission laboratory and clinical events were also similar. DCC resulted in significantly higher superior vena cava blood flow over the study period, as well as greater right ventricle output and right ventricular stroke volumes at 48 hours. No differences were noted in middle cerebral artery BFV, mean superior mesenteric artery BFV, shortening fraction, or the incidence of a persistent ductus arteriosus.
CONCLUSIONS:
DCC in premature infants is associated with potentially beneficial hemodynamic changes over the first days of life.
doi:10.1542/peds.2011-2550
PMCID: PMC3356138  PMID: 22331336
delayed cord clamping; premature infants
14.  Multicenter Analysis of Quality Indicators for Children Treated in the Emergency Department for Asthma 
Pediatrics  2012;129(2):e325-e332.
OBJECTIVE:
To test the hypothesis that an association exists between process and outcome measures of the quality of acute asthma care provided to children in the emergency department.
METHODS:
Investigators at 14 US sites prospectively enrolled consecutive children 2 to 17 years of age presenting to the emergency department with acute asthma. In models adjusted for variables commonly associated with the quality of acute asthma care, we measured the association between 7 measures of concordance with national asthma guideline-recommended processes and 2 outcomes. Specifically, we modeled the association between 5 receipt/nonreceipt process measures and successful discharge and the association between 2 timeliness measures and admission.
RESULTS:
In this cohort of 1426 patients, 62% were discharged without relapse or ongoing symptoms (successful discharge), 15% were discharged with relapse or ongoing symptoms, and 24% were admitted. The composite score for receipt of all 5 receipt/nonreceipt process measures was 84%, and for timeliness measures, 57% receive a timely corticosteroid and 92% a timely β-agonist. Our adjusted models showed no association between process and outcome measures, with 1 exception: timely β-agonist administration was associated with admission, likely reflecting confounding by severity rather than a true process-outcome association.
CONCLUSIONS:
We found no clinically significant association between process and outcome quality measures in the delivery of asthma-related care to children in a multicenter study. Although the quality of emergency department care does not predict successful discharge, other factors, such as outpatient care, may better predict outcomes.
doi:10.1542/peds.2010-3302
PMCID: PMC3269108  PMID: 22250025
asthma; outcome and process assessments (health care); quality of health care; Severity of Illness Index; practice guideline; antiasthmatic agents; asthma; preschool child; child; adolescent
15.  A Decision-Tree Approach to Cost Comparison of Newborn Screening Strategies for Cystic Fibrosis 
Pediatrics  2012;129(2):e339-e347.
OBJECTIVE:
Because cystic fibrosis can be difficult to diagnose and treat early, newborn screening programs have rapidly developed nationwide but methods vary widely. We therefore investigated the costs and consequences or specific outcomes of the 2 most commonly used methods.
METHODS:
With available data on screening and follow-up, we used a simulation approach with decision trees to compare immunoreactive trypsinogen (IRT) screening followed by a second IRT test against an IRT/DNA analysis. By using a Monte Carlo simulation program, variation in the model parameters for counts at various nodes of the decision trees, as well as for costs, are included and applied to fictional cohorts of 100 000 newborns. The outcome measures included the numbers of newborns given a diagnosis of cystic fibrosis and costs of screening strategy at each branch and cost per newborn.
RESULTS:
Simulations revealed a substantial number of potential missed diagnoses for the IRT/IRT system versus IRT/DNA. Although the IRT/IRT strategy with commonly used cutoff values offers an average overall cost savings of $2.30 per newborn, a breakdown of costs by societal segments demonstrated higher out-of-pocket costs for families. Two potential system failures causing delayed diagnoses were identified relating to the screening protocols and the follow-up system.
CONCLUSIONS:
The IRT/IRT screening algorithm reduces the costs to laboratories and insurance companies but has more system failures. IRT/DNA offers other advantages, including fewer delayed diagnoses and lower out-of-pocket costs to families.
doi:10.1542/peds.2011-0096
PMCID: PMC3269109  PMID: 22291119
cystic fibrosis; immunoreactive trypsinogen; DNA; newborn screening; costs; sensitivity
16.  Prospective Study of Sunburn and Sun Behavior Patterns During Adolescence 
Pediatrics  2012;129(2):309-317.
OBJECTIVES:
Early childhood UV light radiation (UVR) exposures have been shown to be associated with melanoma development later in life. The objective of this study was to assess sunburn and changes in sunburn and sun behaviors during periadolescence.
METHODS:
A prospective, population-based study was conducted in fifth-grade children (∼10 years of age) from Framingham, Massachusetts. Surveys were administered at baseline (September–October 2004) and again 3 years later (September–October 2007). Surveys were analyzed to assess prevalence of reported sunburn and sun behaviors and to examine changes in response over the follow-up period.
RESULTS:
Data were analyzed from 360 participants who had complete information regarding sunburn at both time points. In 2004, ∼53% of the students reported having at least 1 sunburn during the previous summer, and this proportion did not significantly change by 2007 (55%, P = .79), whereas liking a tan and spending time outside to get a tan significantly increased (P < .001). In 2004, 50% of students reported “often or always” use of sunscreen when outside for at least 6 hours in the summer; this proportion dropped to 25% at the follow-up evaluation (P < .001).
CONCLUSIONS:
With at least 50% of children experiencing sunburns before age 11 and again 3 years later, targeting children in pediatric offices and community settings regarding unprotected UV exposure may be a practical approach. Because periadolescence is a time of volatility with regard to sun behaviors, learning more about children who receive sunburns versus those who avoid them is a critical research task.
doi:10.1542/peds.2011-0104
PMCID: PMC3269110  PMID: 22271688
sunburn; suntan; adolescent; melanoma
17.  Public Attitudes Regarding the Use of Residual Newborn Screening Specimens for Research 
Pediatrics  2012;129(2):231-238.
BACKGROUND AND OBJECTIVES:
Many state newborn screening (NBS) programs retain residual NBS bloodspots after the completion of screening. Potential uses for residual specimens include laboratory quality assurance, biomedical research, and, rarely, forensic applications. Our objective was to evaluate public opinion about the policies and practices relevant to the retention and use of residual bloodspots for biomedical research.
METHODS:
A total of 3855 respondents were recruited using 3 methods: focus groups (n = 157), paper or telephone surveys (n = 1418), and a Knowledge Networks panel (n = 2280). Some participants (n = 1769) viewed a 22-minute movie about the retention and use of residual specimens while other participants were provided only written information about this practice. All participants were surveyed using a 38-item questionnaire.
RESULTS:
A diverse set of participants was recruited. Respondents were very supportive of NBS in general and accepting of the use of residual bloodspots for important research activities. Respondents were evenly divided on the acceptability of NBS without parental permission, but the majority of respondents supported the use of an “opt-in” process for parental permission for residual bloodspot retention and use. Viewing the educational movie was associated with greater support for bloodspot retention and use.
CONCLUSIONS:
Our results show that the general public surveyed here was supportive of NBS and residual sample retention and research use. However, there was a clear preference for an informed permission process for parents regarding these activities. Education about NBS was associated with a higher level of support and may be important to maintain public trust in these important programs.
doi:10.1542/peds.2011-0970
PMCID: PMC3269111  PMID: 22250018
newborn screening; biobank; informed consent; survey
18.  Association of Center Volume With Mortality and Complications in Pediatric Heart Surgery 
Pediatrics  2012;129(2):e370-e376.
OBJECTIVE:
Previous analyses have suggested center volume is associated with outcome in children undergoing heart surgery. However, data are limited regarding potential mediating factors, including the relationship of center volume with postoperative complications and mortality in those who suffer a complication. We examined this association in a large multicenter cohort.
METHODS:
Children 0 to 18 years undergoing heart surgery at centers participating in the Society of Thoracic Surgeons Congenital Heart Surgery Database (2006–2009) were included. In multivariable analysis, we evaluated outcomes associated with annual center volume, adjusting for patient factors and surgical risk category.
RESULTS:
A total of 35 776 patients (68 centers) were included. Overall, 40.6% of patients had ≥1 complication, and the in-hospital mortality rate was 3.9%. The mortality rate in those patients with a complication was 9.0%. In multivariable analysis, lower center volume was significantly associated with higher in-hospital mortality. There was no association of center volume with the rate of postoperative complications, but lower center volume was significantly associated with higher mortality in those with a complication (P = .03 when volume examined as a continuous variable; odds ratio in centers with <150 vs >350 cases per year = 1.59 [95% confidence interval: 1.16–2.18]). This association was most prominent in the higher surgical risk categories.
CONCLUSIONS:
These data suggest that the higher mortality observed at lower volume centers in children undergoing heart surgery may be related to a higher rate of mortality in those with postoperative complications, rather than a higher rate of complications alone.
doi:10.1542/peds.2011-1188
PMCID: PMC3269112  PMID: 22232310
congenital heart disease; heart surgery; outcomes research
19.  Cardiac Screening Prior to Stimulant Treatment of ADHD: A Survey of US-Based Pediatricians 
Pediatrics  2012;129(2):222-230.
OBJECTIVES:
To determine pediatricians’ attitudes, barriers, and practices regarding cardiac screening before initiating treatment with stimulants for attention-deficit/hyperactivity disorder.
METHODS:
A survey of 1600 randomly selected, practicing US pediatricians with American Academy of Pediatrics membership was conducted. Multivariate models were created for 3 screening practices: (1) performing an in-depth cardiac history and physical (H & P) examination, (2) discussing potential stimulant-related cardiac risks, and (3) ordering an electrocardiogram (ECG).
RESULTS:
Of 817 respondents (51%), 525 (64%) met eligibility criteria. Regarding attitudes, pediatricians agreed that both the risk for sudden cardiac death (SCD) (24%) and legal liability (30%) were sufficiently high to warrant cardiac assessment; 75% agreed that physicians were responsible for informing families about SCD risk. When identifying cardiac disorders, few (18%) recognized performing an in-depth cardiac H & P as a barrier; in contrast, 71% recognized interpreting a pediatric ECG as a barrier. When asked about cardiac screening practices before initiating stimulant treatment for a recent patient, 93% completed a routine H & P, 48% completed an in-depth cardiac H & P, and 15% ordered an ECG. Almost half (46%) reported discussing stimulant-related cardiac risks. Multivariate modeling indicated that ≥1 of these screening practices were associated with physicians’ attitudes about SCD risk, legal liability, their responsibility to inform about risk, their ability to perform an in-depth cardiac H & P, and family concerns about risk.
CONCLUSIONS:
Variable pediatrician attitudes and cardiac screening practices reflect the limited evidence base and conflicting guidelines regarding cardiac screening. Barriers to identifying cardiac disorders influence practice.
doi:10.1542/peds.2011-1574
PMCID: PMC3269113  PMID: 22250023
attention-deficit/hyperactivity disorder; stimulants; sudden cardiac death; pediatrics; electrocardiogram
20.  Calculation of Expected Body Weight in Adolescents With Eating Disorders 
Pediatrics  2012;129(2):e438-e446.
OBJECTIVE:
To examine the agreement between three methods to calculate expected body weight (EBW) for adolescents with eating disorders: (1) BMI percentile, (2) McLaren, and (3) Moore methods.
METHODS:
The authors conducted a cross-sectional analysis of baseline information from adolescents seeking treatment of disordered eating at The University of Chicago. Adolescents (N = 373) aged 12 to 18 years (mean = 15.84, SD = 1.72), with anorexia nervosa (n = 130), bulimia nervosa (n = 59), or eating disorder not otherwise specified (n = 184). Concurrence between the BMI percentile, McLaren, and Moore methods was assessed for agreement above or below arbitrary cut points used in relation to hospitalization (75%), diagnosis (85%), and healthy weight (100%). Patterns of absolute discrepancies were examined by height, age, gender, and menstrual status. Limitations to some of these methods allowed comparison between all 3 methods in only 204 participants.
RESULTS:
Moderate agreement was seen between the 3 methods (κ values, 0.48–0.74), with pairwise total classification accuracy at each cut point ranging from 84% to 98%. The most discrepant calculations were observed among the tallest (>75th percentile) and shortest (<20th percentile) cases and older ages (>16 years). Many of the most discrepant cases fell above and below 85% EBW when comparing the BMI percentile and Moore methods, indicating disagreement on possible diagnosis of anorexia nervosa.
CONCLUSIONS:
These methods largely agree on percent EBW in terms of clinically significant cut points. However, the McLaren and Moore methods present with limitations, and a commonly agreed-upon method for EBW calculation such as the BMI percentile method is recommended for clinical and research purposes.
doi:10.1542/peds.2011-1676
PMCID: PMC3269114  PMID: 22218841
adolescence; body weight; eating disorders
21.  Drinking Frequency as a Brief Screen for Adolescent Alcohol Problems 
Pediatrics  2012;129(2):205-212.
OBJECTIVE:
Routine alcohol screening of adolescents in pediatric settings is recommended, and could be facilitated by a very brief empirically validated alcohol screen based on alcohol consumption. This study used national sample data to test the screening performance of 3 alcohol consumption items (ie, frequency of use in the past year, quantity per occasion, frequency of heavy episodic drinking) in identifying youth with alcohol-related problems.
METHODS:
Data were from youth aged 12 to 18 participating in the annual National Survey on Drug Use and Health from 2000 to 2007. The screening performance of 3 alcohol consumption items was tested, by age and gender, against 2 outcomes: any Diagnostic and Statistical Manual, Fourth Edition alcohol use disorder symptom (“moderate”-risk outcome), and a diagnosis of Diagnostic and Statistical Manual, Fourth Edition alcohol dependence (“high”-risk outcome).
RESULTS:
Prevalence of the 2 outcomes increased with age: any alcohol use disorder symptom ranged from 1.4% to 29.2%; alcohol dependence ranged from 0.2% to 5.3%. Frequency of drinking had higher sensitivity and specificity in identifying both outcomes, compared with quantity per occasion and heavy episodic drinking frequency. For both outcomes, results indicate the utility of similar cut points for drinking frequency for males and females at each age. Age-specific frequency cut points, however, are recommended for both moderate- and high-risk outcomes to maximize screening performance.
CONCLUSIONS:
Drinking frequency provides an empirically supported brief screen to efficiently identify youth with alcohol-related problems.
doi:10.1542/peds.2011-1828
PMCID: PMC3269115  PMID: 22218839
adolescent; alcohol screen; alcohol use
22.  Perioperative Methylprednisolone and Outcome in Neonates Undergoing Heart Surgery 
Pediatrics  2012;129(2):e385-e391.
BACKGROUND:
Recent studies have called into question the benefit of perioperative corticosteroids in children undergoing heart surgery, but have been limited by the lack of placebo control, limited power, and grouping of various steroid regimens together in analysis. We evaluated outcomes across methylprednisolone regimens versus no steroids in a large cohort of neonates.
METHODS:
Clinical data from the Society of Thoracic Surgeons Database were linked to medication data from the Pediatric Health Information Systems Database for neonates (≤30 days) undergoing heart surgery (2004–2008) at 25 participating centers. Multivariable analysis adjusting for patient and center characteristics, surgical risk category, and within-center clustering was used to evaluate the association of methylprednisolone regimen with outcome.
RESULTS:
A total of 3180 neonates were included: 22% received methylprednisolone on both the day before and day of surgery, 12% on the day before surgery only, and 28% on the day of surgery only; 38% did not receive any perioperative steroids. In multivariable analysis, there was no significant mortality or length-of-stay benefit associated with any methylprednisolone regimen versus no steroids, and no difference in postoperative infection. In subgroup analysis by surgical-risk group, there was a significant association of methylprednisolone with infection consistent across all regimens (overall odds ratio 2.6, 95% confidence interval 1.3–5.2) in the lower-surgical-risk group.
CONCLUSIONS:
This multicenter observational analysis did not find any benefit associated with methylprednisolone in neonates undergoing heart surgery and suggested increased infection in certain subgroups. These data reinforce the need for a large randomized trial in this population.
doi:10.1542/peds.2011-2034
PMCID: PMC3269116  PMID: 22271697
congenital heart disease; heart surgery; outcomes
23.  Societal Values and Policies May Curtail Preschool Children’s Physical Activity in Child Care Centers 
Pediatrics  2012;129(2):265-274.
BACKGROUND AND OBJECTIVES:
Three-fourths of US preschool-age children are in child care centers. Children are primarily sedentary in these settings, and are not meeting recommended levels of physical activity. Our objective was to identify potential barriers to children’s physical activity in child care centers.
METHODS:
Nine focus groups with 49 child care providers (55% African American) were assembled from 34 centers (inner-city, suburban, Head Start, and Montessori) in Cincinnati, Ohio. Three coders independently analyzed verbatim transcripts for themes. Data analysis and interpretation of findings were verified through triangulation of methods.
RESULTS:
We identified 3 main barriers to children’s physical activity in child care: (1) injury concerns, (2) financial, and (3) a focus on “academics.” Stricter licensing codes intended to reduce children's injuries on playgrounds rendered playgrounds less physically challenging and interesting. In addition, some parents concerned about potential injury, requested staff to restrict playground participation for their children. Small operating margins of most child care centers limited their ability to install abundant playground equipment. Child care providers felt pressure from state mandates and parents to focus on academics at the expense of gross motor play. Because children spend long hours in care and many lack a safe place to play near their home, these barriers may limit children's only opportunity to engage in physical activity.
CONCLUSIONS:
Societal priorities for young children—safety and school readiness—may be hindering children’s physical development. In designing environments that optimally promote children’s health and development, child advocates should think holistically about potential unintended consequences of policies.
doi:10.1542/peds.2011-2102
PMCID: PMC3269117  PMID: 22218842
child care; physical activity; health promotion; health policy
24.  Trends in US Pediatric Drowning Hospitalizations, 1993–2008 
Pediatrics  2012;129(2):275-281.
BACKGROUND:
In the United States, drowning is the second leading cause of unintentional injury death in children aged 1 to 19 years, accounting for nearly 1100 deaths per year. Although a decline in overall fatal drowning deaths among children has been noted, national trends and disparities in pediatric drowning hospitalizations have not been reported.
METHODS:
To describe trends in pediatric drowning in the United States and provide national benchmarks for state and regional comparisons, we analyzed existing data (1993–2008) from the Nationwide Inpatient Sample, the largest, longitudinal, all-payer inpatient care database in the United States. Children aged 0 to 19 years were included. Annual rates of drowning-related hospitalizations were determined, stratified by age, gender, and outcome.
RESULTS:
From 1993 to 2008, the estimated annual incidence rate of pediatric hospitalizations associated with drowning declined 49% from 4.7 to 2.4 per 100 000 (P < .001). The rates declined for all age groups and for both males and females. The hospitalization rate for males remained consistently greater than for females at each point in time. Rates of fatal drowning hospitalization declined from 0.5 (95% confidence interval, 0.4–0.7) deaths per 100 000 in 1993–1994 to 0.3 (95% confidence interval, 0.2–0.4) in 2007–2008 (P < .01). No difference was observed in the mean hospital length of stay over time.
CONCLUSIONS:
Pediatric hospitalization rates for drowning have decreased over the past 16 years. Our study provides national estimates of pediatric drowning hospitalization that can be used as benchmarks to target and assess prevention strategies.
doi:10.1542/peds.2011-2491
PMCID: PMC3269118  PMID: 22250031
drowning; pediatric; hospitalization; incidence; trends
25.  Intrapartum Temperature Elevation, Epidural Use, and Adverse Outcome in Term Infants 
Pediatrics  2012;129(2):e447-e454.
OBJECTIVES:
To examine the association of intrapartum temperature elevation with adverse neonatal outcome among low-risk women receiving epidural analgesia and evaluate the association of epidural with adverse neonatal outcome without temperature elevation.
METHODS:
We studied all low-risk nulliparous women with singleton pregnancies ≥37 weeks delivering at our hospital during 2000, excluding pregnancies where infants had documented sepsis, meningitis, or a major congenital anomaly. Neonatal outcomes were compared between women receiving (n = 1538) and not receiving epidural analgesia (n = 363) in the absence of intrapartum temperature elevation (≤99.5°F) and according to the level of intrapartum temperature elevation within the group receiving epidural (n = 2784). Logistic regression was used to evaluate neonatal outcome while controlling for confounders.
RESULTS:
Maternal temperature >100.4°F developed during labor in 19.2% (535/2784) of women receiving epidural compared with 2.4% (10/425) not receiving epidural. In the absence of intrapartum temperature elevation (≤99.5°F), no significant differences were observed in adverse neonatal outcomes between women receiving and not receiving epidural. Among women receiving epidural, a significant linear trend was observed between maximum maternal temperature and all neonatal outcomes examined including hypotonia, assisted ventilation, 1- and 5-min Apgar scores <7, and early-onset seizures. In regression analyses, infants born to women with fever >101°F had a two- to sixfold increased risk of all adverse outcomes examined.
CONCLUSIONS:
The proportion of infants experiencing adverse outcomes increased with the degree of epidural-related maternal temperature elevation. Epidural use without temperature elevation was not associated with any of the adverse outcomes we studied.
doi:10.1542/peds.2010-2301
PMCID: PMC3357045  PMID: 22291120
maternal fever; epidural analgesia; pregnancy; labor; infant; neonatal outcome; neurologic; seizures

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