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1.  Predictive value of readiness, importance, and confidence in ability to change drinking and smoking 
BMC Public Health  2012;12:708.
Background
Visual analog scales (VAS) are sometimes used to assess change constructs that are often considered critical for change. Aims of Study: 1.) To determine the association of readiness to change, importance of changing and confidence in ability to change alcohol and tobacco use at baseline with the risk for drinking (more than 21 drinks per week/6 drinks or more on a single occasion more than once per month) and smoking (one or more cigarettes per day) six months later. 2.) To determine the association of readiness, importance and confidence with alcohol (number of drinks/week, number of binge drinking episodes/month) and tobacco (number of cigarettes/day) use at six months.
Methods
This is a secondary analysis of data from a multi-substance brief intervention randomized trial. A sample of 461 Swiss young men was analyzed as a prospective cohort. Participants were assessed at baseline and six months later on alcohol and tobacco use, and at baseline on readiness to change, importance of changing and confidence in ability to change constructs, using visual analog scales ranging from 1–10 for drinking and smoking behaviors. Regression models controlling for receipt of brief intervention were employed for each change construct. The lowest level (1–4) of each scale was the reference group that was compared to the medium (5–7) and high (8–10) levels.
Results
Among the 377 subjects reporting unhealthy alcohol use at baseline, mean (SD) readiness, importance and confidence to change drinking scores were 3.9 (3.0), 2.7 (2.2) and 7.2 (3.0), respectively. At follow-up, 108 (29%) reported no unhealthy alcohol use. Readiness was not associated with being risk-free at follow-up, but high importance (OR 2.94; 1.15, 7.50) and high confidence (OR 2.88; 1.46, 5.68) were. Among the 255 smokers at baseline, mean readiness, importance and confidence to change smoking scores were 4.6 (2.6), 5.3 (2.6) and 5.9 (2.7), respectively. At follow-up, 13% (33) reported no longer smoking. Neither readiness nor importance was associated with being a non-smoker, whereas high confidence (OR 3.29; 1.12, 9.62) was.
Conclusions
High confidence in ability to change was associated with favorable outcomes for both drinking and smoking, whereas high importance was associated only with a favorable drinking outcome. This study points to the value of confidence as an important predictor of successful change for both drinking and smoking, and shows the value of importance in predicting successful changes in alcohol use.
Trial registration number
ISRCTN78822107
doi:10.1186/1471-2458-12-708
PMCID: PMC3490974  PMID: 22931392
Readiness to change; Importance of changing; Confidence in ability to change; Unhealthy alcohol use; Smoking
2.  Improvements in readiness to change and drinking in primary care patients with unhealthy alcohol use: a prospective study 
BMC Public Health  2009;9:101.
Background
The course of alcohol consumption and cognitive dimensions of behavior change (readiness to change, importance of changing and confidence in ability to change) in primary care patients are not well described. The objective of the study was to determine changes in readiness, importance and confidence after a primary care visit, and 6-month improvements in both drinking and cognitive dimensions of behavior change, in patients with unhealthy alcohol use.
Methods
Prospective cohort study of patients with unhealthy alcohol use visiting primary care physicians, with repeated assessments of readiness, importance, and confidence (visual analogue scale (VAS), score range 1–10 points). Improvements 6 months later were defined as no unhealthy alcohol use or any increase in readiness, importance, or confidence. Regression models accounted for clustering by physician and adjusted for demographics, alcohol consumption and related problems, and discussion with the physician about alcohol.
Results
From before to immediately after the primary care physician visit, patients (n = 173) had increases in readiness (mean +1.0 point), importance (+0.2), and confidence (+0.5) (all p < 0.002). In adjusted models, discussion with the physician about alcohol was associated with increased readiness (+0.8, p = 0.04). At 6 months, many participants had improvements in drinking or readiness (62%), drinking or importance (58%), or drinking or confidence (56%).
Conclusion
Readiness, importance and confidence improve in many patients with unhealthy alcohol use immediately after a primary care visit. Six months after a visit, most patients have improvements in either drinking or these cognitive dimensions of behavior change.
doi:10.1186/1471-2458-9-101
PMCID: PMC2679737  PMID: 19358730
3.  Does Readiness To Change Predict Subsequent Alcohol Consumption In Medical Inpatients With Unhealthy Alcohol Use? 
Addictive behaviors  2009;34(8):636-640.
We studied whether readiness to change predicts alcohol consumption (drinks per day) 3 months later in 267 medical inpatients with unhealthy alcohol use. We used 3 readiness to change measures: a 1 to 10 visual analog scale (VAS) and two factors of the Stages of Change Readiness and Treatment Eagerness Scale: Perception of Problems (PP) and Taking Action (TA). Subjects with the highest level of VAS-measured readiness consumed significantly fewer drinks 3 months later [Incidence rate ratio (IRR) and 95% confidence interval (CI): 0.57 (0.36, 0.91) highest vs. lowest tertile]. Greater PP was associated with more drinking [IRR (95%CI): 1.94 (1.02, 3.68) third vs. lowest quartile]. Greater TA scores were associated with less drinking [IRR (95%CI): 0.42 (0.23, 0.78) highest vs. lowest quartile]. Perception of Problems' association with more drinking may reflect severity rather than an aspect of readiness associated with ability to change; high levels of Taking Action appear to predict less drinking. Although assessing readiness to change may have clinical utility, assessing the patient's planned actions may have more predictive value for future improvement in alcohol consumption.
doi:10.1016/j.addbeh.2009.03.034
PMCID: PMC2789443  PMID: 19428189
unhealthy alcohol use; readiness to change; medical inpatients; Stages of Change Readiness and Treatment Eagerness Scale (SOCRATES)
4.  Toward prevention of alcohol exposed pregnancies: characteristics that relate to ineffective contraception and risky drinking 
Journal of behavioral medicine  2009;32(5):443-452.
Alcohol-exposed pregnancy is a leading cause of preventable birth defects in the United States. This paper describes the motivational patterns that relate to risky drinking and ineffective contraception, two behaviors that can result in alcohol-exposed pregnancy. As part of an intervention study aimed at reducing alcohol-exposed pregnancy 124 women were recruited and reported demographic characteristics, readiness to change, stages of change, drinking, contraception, and sexual behavior history. Our results showed the following. Drinking: A significant positive correlation was found between the number of drinks consumed in 90 days and the Importance to reduce drinking (r = .23, p = .008). A significant negative correlation between number of drinks and confidence to reduce drinking (r = −.39, p = .000) was found as well. Significant differences were found in the total number of drinks consumed in 90 days between the five stages of change (F = (4,118), 3.12, p = .01). Women in Preparation reported drinking a significantly higher number of drinks than women in other stages of change. Contraception: There were significant negative correlations between ineffective contraception and Importance (r = −.38, p = .00), confidence (r = −.20, p = .02) and Readiness (r = −.43, p = .00) to use contraception effectively. Significant differences in contraception ineffectiveness were found for women in different stages of change (F = (4,115) 8.58, p = .000). Women in Precontemplation reported significantly higher levels of contraception ineffectiveness compared to women in other stages of change. Results show a clear relationship between higher alcohol consumption and higher levels of motivation to reduce drinking. In contrast, higher levels of ineffective contraception were related to lower levels of motivation to use contraception effectively. This suggests risky drinking may be better targeted with brief skills building interventions and ineffective contraception may require interventions that enhance problem awareness and motivation.
doi:10.1007/s10865-009-9215-6
PMCID: PMC2868058  PMID: 19459039
Alcohol exposed pregnancy; Binge drinking; Contraception; Self-efficacy; Stages of change
5.  Brief Assessment of Readiness to Change Tobacco Use in Treated Youth 
This study examined the concurrent and predictive validity of four brief measures of readiness to change tobacco use for use with adolescents in clinical practice: Readiness Ruler, Thoughts About Abstinence (TAA), motivation to abstain, and confidence to abstain; and a single-item measure of difficulty to abstain. Participants were 154 adolescent smokers recruited from outpatient addictions treatment, who completed assessments shortly after admission, and at 6- and 12-month follow-up. Concurrent validity analyses indicated that the four readiness measures were moderately correlated at each time point. Predictive validity analyses indicated that Ruler and motivation to abstain ratings predicted number of cigarettes smoked at 6- and 12-months. Perceived difficulty to abstain predicted cigarette use over and above the readiness to change measures. Results support the clinical utility of the Ruler and motivation to abstain as brief measures of readiness to change, and perceived difficulty to abstain, as tools to aid adolescent tobacco cessation.
doi:10.1016/j.jsat.2011.02.010
PMCID: PMC3137741  PMID: 21489740
readiness to change; tobacco; adolescent; substance abuse treatment
6.  A Comparison of the Concurrent and Predictive Validity of Three Measures of Readiness to Change Alcohol Use in a Clinical Sample of Adolescents 
Psychological assessment  2011;23(4):983-994.
We compared three measures of readiness to change alcohol use commonly used in clinical research and practice with adolescents: the Readiness Ruler, the SOCRATES (subscales of Recognition and Taking Steps), and a Staging Algorithm. The analysis sample consisted of 161 male and female adolescents presenting for intensive outpatient alcohol who reported current alcohol use at the initial assessment. Evidence for concurrent validity was assessed by computing simple correlations of each readiness measure with the other three, and of each readiness measure with drinking behavior (percentage of days abstinent (PDA) and drinks per drinking day (DDD), respectively, in the last 30 days) at the start of treatment and at the 6-month follow-up assessment. Evidence for predictive validity was based on percentage of independent variance accounted for by each of the readiness measures in predicting drinking behavior at six months from the start of treatment, and then in predicting drinking behavior at 12 months from the readiness assessment at 6 months. The results showed that all but Recognition had good concurrent validity, the Readiness Ruler score showed consistent evidence for predictive validity, and the Staging Algorithm showed good predictive validity for DDD at 6 and 12 months. For the 82 participants with an alcohol use disorder diagnosis, the findings for the Ruler and Recognition were similar, but the Staging Algorithm had poorer prediction of DDD at 12 months, and Taking Steps was a better predictor of 6- and 12-month PDA and DDD. Research and clinical implications of the findings are discussed.
doi:10.1037/a0024136
PMCID: PMC3433156  PMID: 21767028
Readiness to change; alcohol use; measurement validity; adolescents
7.  Readiness to change, drinking, and negative consequences among Polish SBIRT patients 
Addictive Behaviors  2011;37(3):287-292.
The aim of this study is to examine the longitudinal relationship of readiness to change, drinking pattern, amount of alcohol consumed, and alcohol-related negative consequences among at-risk and dependent drinkers enrolled in a Screening, Brief Intervention and Referral to Treatment (SBIRT) trial in an emergency department in southern Poland. The study examined 299 patients randomized to either an assessment or intervention condition and followed at 3 and 12 months after initial presentation. Patients indicating a readiness or were unsure of changing drinking behavior were significantly more likely to decrease the maximum number of drinks per occasion and the usual number of drinks in a sitting in the 3-months following study entry when compared to those that rated changing drinking behavior as unimportant. Readiness to change was not predictive of outcomes between the baseline and 12-month follow-up. Drinking outcomes and negative consequences by readiness and research condition were non-significant. This is the first Polish study utilizing SBIRT to enable patients to identify their hazardous drinking and reduce alcohol consumption. While some drinking outcomes improved with motivation, these improvements were not maintained at 12-months following SBIRT. Attention to additional constructs of readiness to change and drinking patterns may augment the effectiveness of SBIRT.
doi:10.1016/j.addbeh.2011.11.006
PMCID: PMC3258358  PMID: 22119521
8.  Characteristics and predictors of readiness to quit among emergency medical patients presenting with respiratory symptoms 
Purpose
To examine behavioral factors that lead patients to consider quitting smoking and features associated with readiness to quit among adults who are seeking treatment in the emergency department (ED) for respiratory symptoms.
Methods
A toal of 665 adult smokers seeking treatment in an ED for respiratory symptoms and respiratory illness answered survey questions during the ED visit.
Results
Patients self-reported "readiness to quit" was broadly distributed among this patient population. Patients with COPD, pneumonia or asthma perceived higher risks from smoking than other patients with respiratory complaints. Over half of all participants had scores indicative of depression. Regression analysis showed that prior efforts to quit, confidence, perceived importance of quitting and decisional balance were each significantly predictive of readiness to quit, accounting for 40% of the variance.
Conclusions
While many of these patients appear unaware of the connection between their symptoms and their smoking, patients with diagnosed chronic respiratory illness perceived higher risks from their smoking. In patients who do not perceive these risks, physician intervention may increase perceived risk from smoking and perceived importance of quitting. Interventions designed for the ED setting targeting this patient population should consider screening for depressive symptoms and, when appropriate, making referrals for further evaluation and/or treatment. Medications that can help alleviate depression and withdrawal symptoms while quitting smoking, such as bupropion, may be particularly useful for this subset of patients, as depression is a substantial barrier to quitting.
doi:10.1186/1865-1380-4-24
PMCID: PMC3120652  PMID: 21645378
9.  Readiness to Change and Risk-Drinking Women 
The predictive value of the Readiness to Change Questionnaire (RTCQ) for subsequent drinking was evaluated in 499 women. These women had medical problems potentially exacerbated by alcohol use and were enrolled in an intervention study. Correlates and predictors of stage-of-change were analyzed. Results indicated that the categorical application of the RTCQ did not predict drinking in the 6–12 months after enrollment. Preliminary findings support rescoring the RTCQ into a continuous measure. Following this conversion, situational risks factors for drinking were examined as potential mediators of RTC. Heightened risk for alcohol consumption during an argument or boredom was found to attenuate the association between one’s RTC and later drinking. Finally, medical condition moderated the association of RTC on later drinking; women with diabetes, infertility or osteoporosis drank the most in the contemplation stage. In contrast, hypertensive women drank most when action-oriented to change. The implications for intervening with risk-drinking women are discussed.
doi:10.1016/j.jsat.2010.11.004
PMCID: PMC3072060  PMID: 21193283
10.  Motivation rulers for smoking cessation: a prospective observational examination of construct and predictive validity 
Background
Although popular clinically, the psychometric properties of motivation rulers for tobacco cessation are unknown. This study examined the psychometric properties of rulers assessing importance, readiness, and confidence in tobacco cessation.
Methods
This observational study of current smokers was conducted at 10 US emergency departments (EDs). Subjects were assessed during their ED visit (baseline) and reassessed two weeks later. We examined intercorrelations between the rulers as well as their construct and predictive validity. Hierarchical multinomial logistic regressions were used to examine the rulers’ predictive ability after controlling for covariables.
Results
We enrolled 375 subjects. The correlations between the three rulers ranged from 0.50 (between Important and Confidence) to 0.70 (between Readiness and Confidence); all were significant (p < 0.001). Individuals in the preparation stage displayed the highest motivation-ruler ratings (all rulers F 2, 363 ≥ 43; p < 0.001). After adjusting for covariables, each of the rulers significantly improved prediction of smoking behavior change. The strength of their predictive ability was on par with that of stage of change.
Conclusion
Our results provide preliminary support for the psychometric soundness of the importance, readiness, and confidence rulers.
doi:10.1186/1940-0640-7-8
PMCID: PMC3507634  PMID: 23186265
Tobacco; Tobacco cessation; Motivation; Stage of change; Reliability; Validity
11.  Readiness to change and post-intervention drinking among Hispanic college students living on the US/Mexico border 
Addictive behaviors  2010;36(3):183-189.
Objective
The purpose of the present study was to examine readiness to change as a predictor of post-intervention alcohol consumption among Hispanic college student drinkers taking part in a brief harm reduction intervention.
Method
Participants of the intervention study were 109 Hispanic college students residing on the US/Mexico border who self-identified as regular drinkers. This manuscript reports findings from a subset of participants who had complete data at 3-month follow-up (N=84). Participants completed the Readiness to Change Questionnaire, the Rutgers Alcohol Problem Index, and the Form-90 Steady Pattern drinking assessment prior to receiving an intervention.
Results
Hierarchical least-squares regression was used to predict baseline readiness to change scores from alcohol consumption and related consequences, and then to predict 3-month post-intervention drinking from baseline drinking and readiness to change. Alcohol consumption and consequences significantly predicted readiness to change at baseline, and follow-up drinking was significantly predicted from baseline drinking, readiness to change, and an interaction between the two variables. Findings indicated that readiness to change may function differently in people with varying levels of alcohol involvement.
Conclusions
Greater readiness to change predicted reduced alcohol consumption only among the heaviest drinkers; among lighter drinkers, greater readiness to change predicted increased alcohol consumption. Possible explanations for this finding are discussed.
doi:10.1016/j.addbeh.2010.10.002
PMCID: PMC4049223  PMID: 21109355
Alcohol; Hispanics; College students; Readiness to change
12.  Validation Study of Kim's Smoking Cessation Motivation Scale and Its Predictive Implications for Smoking Cessation 
Psychiatry Investigation  2009;6(4):272-277.
Objective
The purpose of this study was to develop a scale to measure motivation for smoking cessation. Motivation is known to be important for success of smoking cessation. The reliability of the scale was assessed and its predictive validity for smoking cessation was evaluated.
Methods
We recruited 333 men aged 20 to 70 that visited smoking cessation clinics at seven public health centers. The demographic characteristics were recorded and the Korean version of Stages of Readiness for Change and Eagerness for Treatment Scale for Smoking (K-SO-CRATES-S) performed. A smoking cessation motivation scale was developed with 10 questions based on the theory of motivation enhancement therapy.
Results
The motivation scale was composed of four subscales based on the factor analysis; each subscale had an adequate degree of internal consistency. In addition, the newly developed scale had a high degree of validity based on its significant correlation with the smoking version of SOCRATES. Moreover, the precontemplation level of motivation was found to significantly predict the success of smoking cessation. And one of the subscales of the Korean Nicotine Dependence Syndrome Scale (K-NDSS), stereotypy which also significantly predicted the success of smoking cessation, significantly correlated with the preparation 1 and 2 level of motivation.
Conclusion
The smoking cessation motivation scale with 10 questions that was developed in this study was a highly reliable and valid scale for the prediction of success for smoking cessation for those who wanted to stop smoking.
doi:10.4306/pi.2009.6.4.272
PMCID: PMC2808796  PMID: 20140125
Smoking; Smoking cessation; Motivation scale; Motivation enhancement therapy; Validity
13.  Parents' Readiness to Change Affects BMI Reduction Outcomes in Adolescents with Polycystic Ovary Syndrome 
Journal of Obesity  2012;2012:298067.
Evidence supports the importance of parental involvement for youth's ability to manage weight. This study utilized the stages of change (SOC) model to assess readiness to change weight control behaviors as well as the predictive value of SOC in determining BMI outcomes in forty adolescent-parent dyads (mean adolescent age = 15 ± 1.84 (13–20), BMI = 37 ± 8.60; 70% white) participating in a weight management intervention for adolescent females with polycystic ovary syndrome (PCOS). Adolescents and parents completed a questionnaire assessing their SOC for the following four weight control domains: increasing dietary portion control, increasing fruit and vegetable consumption, decreasing dietary fat, and increasing usual physical activity. Linear regression analyses indicated that adolescent change in total SOC from baseline to treatment completion was not predictive of adolescent change in BMI from baseline to treatment completion. However, parent change in total SOC from baseline to treatment completion was predictive of adolescent change in BMI, (t(24) = 2.15, p = 0.043). Findings support future research which carefully assesses adolescent and parent SOC and potentially develops interventions targeting adolescent and parental readiness to adopt healthy lifestyle goals.
doi:10.1155/2012/298067
PMCID: PMC3433146  PMID: 22970350
14.  Predicting Treatment Seekers Readiness to Change their Drinking Behavior in the COMBINE Study 
Background
Initial motivation and readiness to change are complex constructs and have been important but inconsistent predictors of treatment attendance and drinking outcomes in studies of alcoholism treatment. Motivation can be described in multiple ways as simply the accumulation of consequences that push change, a shift in intentions, or engagement in various tasks that are part of a larger process of change.
Method
Using baseline data from participants in the COMBINE Study, this study re-evaluated the psychometric properties of a 24-item, measure of motivation derived from the URICA that yielded four subscales representing attitudes and experiences related to tasks of stages of Precontemplation, Contemplation, Action, and Maintenance Striving as well as a second order factor score representing a multidimensional view of readiness to change drinking. A variety of hypothesized predictors of readiness and the stage subscales were examined using multiple regression analyses in order to better understand the nature of this measure of motivation.
Results
Findings supported the basic subscale structure and the overall motivational readiness score derived from this measure. Readiness to change drinking behavior was predicted by baseline measures of perceived stress, drinking severity, psychiatric co-morbidity, self-efficacy, craving, and with positive treatment outcome expectancies. However, absolute values were small indicating that readiness for change is not explained simply by demographic, drinking severity, treatment, change process, or contextual variables.
Conclusion
This measure demonstrated good psychometric properties and results supported the independence as well as convergent and divergent validity of the measured constructs. Predictors of overall readiness and subscale scores indicate that a variety of personal and contextual factors contribute to treatment seekers motivation to change in an understandable but complex manner.
doi:10.1111/j.1530-0277.2009.00905.x
PMCID: PMC2954369  PMID: 19320633
Stages of Change; Alcohol Treatment; Motivation; Readiness
15.  Antismoking Threat and Efficacy Appeals: Effects on Smoking Cessation Intentions for Smokers with Low and High Readiness to Quit 
This study examined the effects of sequencing different types of antismoking threat and efficacy appeals on smoking cessation intentions for smokers with low and high levels of readiness to quit. An experiment was done to test predictions based on Witte's (1992) Extended Parallel Process Model and research by Cho and Salmon (2006). A national probability sample of 555 adult smokers was recruited to take part in this study. Results found a positive two-way interaction effect between message threat and perceived level of message efficacy on intentions to seek help for quitting. A three-way interaction effect was found between message threat, perceived level of message efficacy, and readiness to quit on quitting intentions. Both threat and efficacy were important for smokers with low readiness to quit, whereas efficacy was most important among smokers with high readiness to quit. Implications of the results for antismoking campaigns are discussed along with limitations and future directions.
doi:10.1080/00909880802593928
PMCID: PMC2680609  PMID: 20046966
16.  Computer Versus In-Person Intervention for Students Violating Campus Alcohol Policy 
In this study, the authors evaluated the efficacy of a brief motivational intervention (BMI) and a computerized program for reducing drinking and related problems among college students sanctioned for alcohol violations. Referred students (N = 198, 46% women), stratified by gender, were randomly assigned to a BMI or to the Alcohol 101 Plus computer program. Data obtained at baseline, 1, 6, and 12 months were used to evaluate intervention efficacy. Planned analyses revealed 3 primary findings. First, women who received the BMI reduced drinking more than did women who received the computer intervention; in contrast, men’s drinking reductions did not differ by condition. Second, readiness to change and hazardous drinking status predicted drinking reductions at 1 month postintervention, regardless of intervention. Third, by 1 year, drinking returned to presanction (baseline) levels, with no differences in recidivism between groups. Exploratory analyses revealed an overall mean reduction in drinking immediately after the sanction event and before taking part in an intervention. Furthermore, after the self-initiated reductions prompted by the sanction were accounted for, participation in the BMI but not the computer intervention was found to produce additional reduction in drinking and related consequences.
doi:10.1037/a0014281
PMCID: PMC2657221  PMID: 19170455
brief intervention; college drinking; alcohol abuse prevention; mandated students; gender
17.  A New Decisional Balance Measure of Motivation to Change Among At-Risk College Drinkers 
In this study, an open-ended decisional balance worksheet was used to elicit self-generated pros and cons of current drinking and reducing drinking, which were then quantified to create a decisional balance proportion (DBP) reflecting movement towards change (i.e., counts of pros of reducing drinking and cons of current drinking to all decisional balance fields). This study's goal was to examine the convergent, discriminant and predictive validity of the DBP as a measure of motivation to change. Participants were college students (N=143) who reported having engaged in weekly heavy, episodic drinking and who had participated in a larger randomized clinical trial of brief motivational interventions (Carey et al., 2006). Findings indicated partial support for convergent and discriminant validity of the DBP. Compared to Likert scale measures of decisional balance and readiness to change, DBP scores reflecting greater movement towards change best predicted reductions in heavy drinking quantity and frequency and experience of alcohol-related consequences -- although some of these effects decayed by the 12-month follow-up. Findings suggest that the DBP is a valid measure of motivation to change among at-risk college drinkers.
doi:10.1037/a0015841
PMCID: PMC2801026  PMID: 19769430
decisional balance; motivation to change; college drinking; alcohol use; measure development
18.  Readiness to Change Smoking Behavior in Adolescents with Psychiatric Disorders 
Addictive behaviors  2006;32(6):1119-1130.
There has been recent increased interest in utilizing motivational interviewing (MI) to increase adolescents readiness to quit smoking, but attempts to impact quit rates have thus far been discouraging. A better understanding of factors associated with adolescent readiness to quit smoking prior to receiving any intervention may provide guidance when tailoring future MI interventions in order to increase their effectiveness with this population. Adolescent smokers (N = 191) who had been admitted to a psychiatric hospital and enrolled in a clinical trial evaluating MI completed questionnaires that assessed smoking behavior and variables thought to be related to smoking. Confidence to quit smoking and negative beliefs about smoking were significant predictors of adolescents' baseline readiness to quit smoking. The failure to demonstrate relationships between health consequences and readiness suggest that caution may be warranted in the use of feedback, a common component of MI-based interventions. Such feedback tends to focus on health consequences, which was unrelated to adolescent baseline readiness to change smoking behavior in the current study. Parallels between current results and the Theory of Planned Behavior are discussed in consideration of developing more effective MI-based interventions for adolescent smokers.
doi:10.1016/j.addbeh.2006.07.016
PMCID: PMC1892166  PMID: 16950572
Smoking; Tobacco use; Adolescents; Motivation
19.  Which Heavy Drinking College Students Benefit from a Brief Motivational Intervention? 
Heavy drinking among college students is common and is often harmful. A previously reported randomized trial revealed that a brief motivational intervention (BMI) reduced the alcohol consumption of heavy drinking college students (Carey, Carey, Maisto, & Henson, 2006). For this study, we conducted supplemental analyses of hypothesized predictors of change using the same sample (N = 495). Greater readiness-to-change, higher levels of self-regulation, and less engagement in social comparison all independently predicted reductions in drinking outcomes. Furthermore, self-regulation, social comparison, and future time perspective interacted with BMI and predicted drinks per week. As expected, greater self-regulation skills enhanced response to the BMI; the remaining interaction effects were unexpected. Overall, these findings suggest that BMIs produce relatively robust effects.
doi:10.1037/0022-006X.75.4.663
PMCID: PMC2430506  PMID: 17663621
brief intervention; college drinking; moderator; self-regulation; readiness-to-change
20.  Effects of Brief Advice from Family Physicians on the Readiness to Change of Korean Male At-risk Drinkers 
Korean Journal of Family Medicine  2012;33(3):157-165.
Background
This study examined the effects of the method of delivery of brief advice on the readiness to change in at-risk drinkers.
Methods
The participants were 103 at-risk male drinkers who visited Chungnam National University Hospital for general health examinations. Baseline data on drinking behavior, readiness to change drinking behavior, and sociodemographic characteristics were obtained from a questionnaire. Family physicians gave two minutes of advice by telephone or in-person. The brief advice comprised a simple statement that the patient's drinking exceeded the recommended limits and could lead to alcohol-related problems. It also included advice to moderate one's drinking. One month later, the readiness to change was assessed again by telephone. The improvement in the readiness to change according to each method of delivery was investigated.
Results
Initially, among the 58-patient in-person advice group, 12 patients were in the precontemplation stage, 38 in the contemplation stage, and 8 in the action stage. One month after the advice was given to the patients, the distribution had changed significantly (P < 0.001) to 1, 21, and 36 patients, respectively. Among the 45-patient telephone advice group, 7 patients were in the precontemplation stage, 32 patients were in the contemplation stage, and 6 patients were in the action stage before the advice. The distribution had changed significantly (P < 0.001) to 1, 17, and 27 patients, respectively, 1 month after the advice.
Conclusion
These results suggest that brief advice by family physicians is effective in improving the readiness to change of at-risk drinkers, regardless of the delivery method.
doi:10.4082/kjfm.2012.33.3.157
PMCID: PMC3391641  PMID: 22787538
Drinking; Counseling; Physicians; Telephone; Attitude
21.  Comparison of Five Measures of Motivation to Quit Smoking Among a Sample of Hospitalized Smokers 
OBJECTIVE
To compare the predictive validity of several measures of motivation to quit smoking among inpatients enrolled in a smoking cessation program.
METHODS
Data collected during face-to-face counseling sessions included a standard measure of motivation to quit (stage of readiness [Stage]: precontemplation, contemplation, or preparation) and four items with responses grouped in three categories: “How much do you want to quit smoking” (Want), “How likely is it that you will stay off cigarettes after you leave the hospital” (Likely), “Rate your confidence on a scale from 0 to 100 about successfully quitting in the next month” (Confidence), and a counselor assessment in response to the question, “How motivated is this patient to quit?” (Motivation). Patients were classified as nonsmokers if they reported not smoking at both the 6-month and 12-month interviews. All patients lost to follow-up were considered smokers.
MAIN RESULTS
At 1 year, the smoking cessation rate was 22.5%. Each measure of motivation to quit was independently associated with cessation (p < .001) when added individually to an adjusted model. Likely was most closely associated with cessation and Stage was least. Likely had a sensitivity, specificity, positive predictive value, negative predictive value, and likelihood ratio of 70.2%, 68.1%, 39.3%, 88.6%, and 2.2, respectively.
CONCLUSIONS
The motivation of inpatient smokers to quit may be as easily and as accurately predicted with a single question as with the series of questions that are typically used.
doi:10.1046/j.1525-1497.2000.11198.x
PMCID: PMC1495326  PMID: 10632829
motivation; smoking cessation; inpatients; predictive validity
22.  Standardization Study of the Korean Version of the Stages of Change Readiness and Treatment Eagerness Scale for Smoking Cessation (K-SOCRATES-S) and Its Predictive Validity 
Psychiatry Investigation  2012;9(3):223-228.
Objective
The purpose of the study was to develop the Korean version of the Stage of Change Readiness and Treatment Eagerness Scale for Smoking Cessation (K-SOCRATES-S) based on the Korean version of the Stages of Readiness for Change and Eagerness for Treatment scale (K-SOCRATES). This paper also demonstrates its reliability and validity among patients with nicotine dependence in South Korea.
Methods
At seven healthcare promotion centers in Gyeonggi-do, 333 male smokers aged 20 to 70 who visited smoking cessation clinic were recruited for this study and the K-SOCRATES-S was administered. After three months, the number of respondents who successfully stopped smoking was assessed by testing their urine cotinine level. Subsequently, exploratory factor analysis was performed to verify the reliability and validity of the K-SOCRATES-S. Also, a logistic regression analysis was performed to examine the variables that can predict the successful cessation of smoking on subscales of the K-SOCRATES-S.
Results
Exploratory factor analysis of the K-SOCRATES-S showed that the scale consisted of three factors: Taking Steps, Recognition, and Ambivalence. The scales measuring Taking Steps and Recognition in this scale had a significantly positive correlation with the scores observed on Kim's smoking cessation motivation scale. The scales measuring Taking Steps and Recognition had a significantly negative correlation with Ambivalence. Overall, the results indicate that the K-SOCRATES-K scale showed high validity.
Conclusion
The K-SOCRATES-S developed in the present study is highly reliable and valid for predicting a patient's likelihood of success in quitting smoking among patients who want to cease smoking.
doi:10.4306/pi.2012.9.3.223
PMCID: PMC3440470  PMID: 22993520
SOCRATES; Smoking; Smoking cessation; Motivation scale; Motivational enhancement therapy; Predictive validity
23.  The aluminium content of infant formulas remains too high 
BMC Pediatrics  2013;13:162.
Background
Recent research published in this journal highlighted the issue of the high content of aluminium in infant formulas. The expectation was that the findings would serve as a catalyst for manufacturers to address a significant problem of these, often necessary, components of infant nutrition. It is critically important that parents and other users have confidence in the safety of infant formulas and that they have reliable information to use in choosing a product with a lower content of aluminium. Herein, we have significantly extended the scope of the previous research and the aluminium content of 30 of the most widely available and often used infant formulas has been measured.
Methods
Both ready-to-drink milks and milk powders were subjected to microwave digestion in the presence of 15.8 M HNO3 and 30% w/v H2O2 and the aluminium content of the digests was measured by TH GFAAS.
Results
Both ready-to-drink milks and milk powders were contaminated with aluminium. The concentration of aluminium across all milk products ranged from ca 100 to 430 μg/L. The concentration of aluminium in two soya-based milk products was 656 and 756 μg/L. The intake of aluminium from non-soya-based infant formulas varied from ca 100 to 300 μg per day. For soya-based milks it could be as high as 700 μg per day.
Conclusions
All 30 infant formulas were contaminated with aluminium. There was no clear evidence that subsequent to the problem of aluminium being highlighted in a previous publication in this journal that contamination had been addressed and reduced. It is the opinion of the authors that regulatory and other non-voluntary methods are now required to reduce the aluminium content of infant formulas and thereby protect infants from chronic exposure to dietary aluminium.
doi:10.1186/1471-2431-13-162
PMCID: PMC3851493  PMID: 24103160
24.  Readiness to change physical activity and dietary practices and willingness to consult healthcare providers 
Background
Complementary or discrepant stages of change for multiple risk behaviors can guide the development of effective risk reduction interventions for multiple risk factors. The objectives of this study were to assess readiness to change physical activity and dietary practices and the relationships among readiness scores for physical activity and dietary practices. In an underserved population, the readiness scores were analyzed in relationship to the patient's interest in communicating with healthcare providers about health behavior change. Healthcare providers are important contributors in promoting behavior change in community health centers.
Methods
Patients completed questionnaires about communicating with healthcare providers and readiness to change physical activity, intake of fruits and vegetables, dietary fat, calories and weight management. Frequency distributions, correlations, and analysis of variance were computed.
Results
Readiness to change physical activity was not related to readiness to change dietary practices. Readiness to change fruit and vegetable intake and readiness to change dietary fat intake were significantly related. Readiness to change and interest in communicating with healthcare providers were significantly related for physical activity but not for dietary practices.
Conclusions
Readiness to change behavior and interest in talking to healthcare providers were distinct dimensions; for physical activity, the dimensions were congruent and for dietary practices, the dimensions were unrelated. Readiness to change physical activity and dietary practices were not related (discrepant stages of readiness). Therefore, among underserved populations, sequential rather than simultaneous interventions may be appropriate when intervening on multiple risk behaviors, particularly physical activity and dietary practices.
doi:10.1186/1478-4505-2-2
PMCID: PMC446216  PMID: 15191611
25.  NON-DAILY SMOKING PREDICTS HAZARDOUS DRINKING AND ALCOHOL USE DISORDERS IN YOUNG ADULTS IN A LONGITUDINAL U.S. SAMPLE 
Drug and alcohol dependence  2011;118(1):78-82.
BACKGROUND
It is known that daily smoking is associated with the development of alcohol use disorders. However, non-daily smoking is prevalent in young adults and is associated with increased rates of problematic alcohol use in cross-sectional data. It is unknown whether non-daily smoking is predictive of hazardous drinking and alcohol use disorders using longitudinal data. The primary aim of the present investigation was to explore the temporal relationship between non-daily smoking and drinking in young adults, and secondarily, whether college status modified this relationship.
METHODS
Using Waves 1 (2001–2002) and 2 (2004–2005) of the National Epidemiological Survey on Alcohol and Related Conditions (NESARC), we examined the predictive relationship of smoking status at Wave 1 and change in college status between Waves on alcohol drinking, hazardous drinking, and alcohol abuse and dependence disorders at Wave 2. The sample was restricted to individuals aged 18–25 years at Wave 1.
FINDINGS
Daily and non-daily smokers at Wave 1, compared to nonsmokers, were at a greater risk for hazardous drinking and alcohol use disorders at Wave 2, after controlling for Wave 1 drinking. College status did not modify smoking and drinking interactions.
CONCLUSIONS
The findings indicate non-daily smoking is predictive of increased, problematic alcohol use among young adults longitudinally and they support increasing evidence that non-daily smokers represent an important population. Future research should be conducted to continue developing targeted interventions. Early treatments for smoking behavior might have a beneficial effect on reducing the development of problematic patterns of alcohol use and alcohol use disorders.
doi:10.1016/j.drugalcdep.2011.02.022
PMCID: PMC3134579  PMID: 21441000
young adults; smoking; alcohol; NESARC; hazardous drinking

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