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1.  Use of Complementary Therapies for Health Promotion Among Older Adults 
This article describes the types of complementary therapies used by older adults for health promotion, and delineates the predisposing, enabling, and need factors associated with their use. One-hundred ninety-five African American and White participants (age 65+) completed a baseline interview and up to six sets of three daily follow-up interviews at monthly intervals. Complementary therapies for health promotion included home remedies, specific foods or beverages, herbs, supplements, vitamins, over-the-counter (OTC) medicine, prayer, exercise, and being active. Although gender, ethnicity, education, and trust in doctors were associated with the use of complementary therapies for health promotion, health information seeking was the predisposing factor most often associated. The enabling factors were also associated with their use. Health information seeking, which reflects a wellness lifestyle, had the most consistent associations with complementary therapy use for health promotion. This health self-management for health promotion may have positive effects on future medical expenditures.
doi:10.1177/0733464813495109
PMCID: PMC4033702  PMID: 24652893
health promotion; disease prevention; complementary and alternative medicine; minoirty aging
2.  Lifetime and Current Pesticide Exposure among Latino Farmworkers in Comparison to Other Latino Immigrants 
Background
Pesticide exposure poses a health risk for farmworkers. This analysis documents lifetime and current pesticide exposure of North Carolina Latino migrant farmworkers, with comparison to non-farmworker Latino immigrants.
Methods
During May–October 2012, 235 Latino farmworkers and 212 Latino non-farmworkers completed interviews with items to construct measures of lifetime, current residential and occupational pesticide exposure.
Results
Farmworkers experience levels of lifetime and residential pesticide exposure that are consistently greater than among non-farmworkers. Farmworkers report a large number of occupational pesticide exposures. Lifetime exposure and current residential pesticide exposure are related to social determinants. Education is inversely related to lifetime pesticide exposure for farmworkers and non-farmworkers; farmworkers with H-2A visas report greater residential pesticide exposure than those without H-2A visas.
Conclusions
Occupational safety policy needs to consider these patterns of lifetime exposure when setting standards. Health care providers should be aware of the lifetime and current exposure of this vulnerable population.
doi:10.1002/ajim.22324
PMCID: PMC4069227  PMID: 24737498
3.  An In-Depth Analysis of How Elders Seek and Disseminate Health Information 
This study documents older adults’ sources of health information, describes the purposes for health information seeking, and delineates gender and ethnic variation in health information seeking. Sixty-two African American and white adults age 65 and older completed qualitative interviews describing their use of complementary therapies. Interviews identified how individuals obtained and shared health information. Friends, not family, were the dominant source of health information. Participants ranged from active seekers to passive consumers of health information. Information seeking was common for benign symptoms. More women than men discuss health information with others. Friends are the primary source of health information for rural older adults. There is substantial passivity in the pursuit of health information. Identifying health information sources of rural older adults can support the dissemination of information to those who share it with others.
doi:10.1080/02701960.2013.844693
PMCID: PMC4449955  PMID: 24188253
Health information seeking; older adults; Rural; African American; health communication
4.  Assessing Assay Variability of Pesticide Metabolites in the Presence of Heavy Left-Censoring 
Assessing assay variability for field samples in environmental research is challenging, since a quantitative assay is typically constrained by a lower limit of detection. The purpose of this paper is to compare three parametric models for assessing assay variability using duplicate data subject to heavy left-censoring. Efron information criterion (EIC) and Bayesian information criterion (BIC) are used to aid in model selections. Distributional parameter estimates are obtained using maximum likelihood estimation for bivariate lognormal, bivariate zero-inflated lognormal, and bivariate 3-component mixture models. We illustrate a practical application using duplicate pesticide data from the Community Participatory Approach to Measuring Farmworker Pesticide Exposure (PACE3) study. Furthermore, a simulation study is conducted to empirically evaluate the performance of the three models. The results from PACE3 indicate that the bivariate zero-inflated lognormal model is fairly competitive based on EIC or BIC. Further, total variability for the lognormal component can be decomposed into between-subject and within-subject variance based on this model. Assay variability estimates such as within-subject coefficient variation, minimum detectable change, and probability of k-fold difference can be easily derived under the bivariate zero-inflated lognormal model. Additionally, the assay variability is rather large for the PACE3 data. Therefore, apparent longitudinal change in pesticide exposure should be examined cautiously in the context of substantial assay variability.
doi:10.1007/s13253-015-0196-3
PMCID: PMC4443874  PMID: 26023279
Coefficient of variation; Limit of detection; Minimum detectable change; Mixture distribution; Probability of k-fold difference
5.  Unreliable Item or Inconsistent Person? A study of variation in health beliefs and belief- anchors to biomedical models 
Journal of health psychology  2013;20(8):1049-1059.
Several models for health beliefs grounded in social theories have been extensively used in health-related research. However, the measurement of beliefs, especially the stability of beliefs, is still an understudied area. For example, reliability of an item designed to measure health belief is often confounded with response consistency at the person level, and the problem is often ignored in social research in medicine. To delineate discordant responses to the same item of belief in diabetes, which could be due to item unreliability or to respondent inconsistency, we applied contemporary measurement methods to an inventory of common sense beliefs about diabetes and tested the hypothesis that individuals whose health beliefs are congruent with a biomedical model are more consistent in their item responses. Approximately equal numbers of Whites, African Americans, and American Indians (total N=563) with diabetes were recruited into the study from rural areas in North Carolina. The Common Sense Model of Diabetes Inventory, which contained 31 items across six clinical domains, was administered to the participants at baseline and then one month later. Concordance between responses was analyzed using item response theory. Item-level analysis revealed that items in the domains of Causes of Diabetes and Medical Management of Diabetes were less reliable compared to items from other domains. Person-level analysis showed that respondents who held views congruent with the biomedical model were more consistent than people who did not. Item response theory facilitates a process to evaluate item unreliability and differences in distinguishing response consistency. People with diabetes who had beliefs regarding diabetes not congruent with the biomedical model tended to be less stable in their beliefs and should be more amenable to diabetes education and other interventions.
doi:10.1177/1359105313506761
PMCID: PMC4004728  PMID: 24170016
diabetes; common sense model; reliability; concordance; response consistency; item response theory
7.  Older Adults’ Use of Care Strategies in Response to General and Upper Respiratory Symptoms 
This study examined the use of complementary and medical treatments, both individually and in combination, to address common general and upper respiratory symptoms. Data for the analysis were collected from a series of 18 daily diary questionnaires administered to community-living older African American and white adults living in rural counties in North Carolina. Participants reported symptoms experienced on each diary day and the treatment strategies they used each day in response to the particular symptom(s). Older adults used diverse categories of strategies to treat symptoms; treatment strategies were used inconsistently across symptoms. Use of only complementary strategies, only medical conventional strategies, or both complementary and medical strategies to treat any one symptom rarely corresponded to the use of the same strategy to address other symptoms. Future research would benefit from analyzing how older adults use health care strategies across symptom categories.
doi:10.1177/0733464813478689
PMCID: PMC4102662  PMID: 24652871
aging; complementary medicine; self-care; older adults; rural
8.  Association Between Housing Quality and Individual Health Characteristics on Sleep Quality Among Latino Farmworkers 
Although poor sleep quality and associated sleep disorders are associated with increased risk of job injury and multiple mental and physical health problems, scant research has examined sleep quality among Latino farmworkers. Interviews were conducted with 371 male Latino farmworkers working in North Carolina during the 2010 agricultural season. Data on housing quality and sleep quality were collected. Access to air conditioning was significantly and positively associated with good sleep quality. This association remained when other housing characteristics and individual health indicators were controlled. Good sleep quality was associated with low levels of pain, depression, and anxiety. Poor sleep quality among Latino farmworkers was associated with poorer indicators of health. One important indicator of housing quality, air conditioning, was associated with better sleep quality. Further research is required to delineate how to improve the adequacy of farmworker housing to improve sleep quality and other health indicators.
doi:10.1007/s10903-012-9746-8
PMCID: PMC3884040  PMID: 23161266
Latino farmworkers; Housing; Sleep quality; Depression; Anxiety; Musculoskeletal pain
9.  One-year Incidence of Carpal Tunnel Syndrome in Latino Poultry Processing Workers and Other Latino Manual Workers 
Objective
To determine the incidence of carpal tunnel syndrome (CTS) over one year in Latino poultry processing workers.
Methods
Symptoms and nerve conduction studies were used to identify Latino poultry processing workers (106 wrists) and Latinos in other manual labor occupations (257 wrists) that did not have CTS at baseline, and these individuals were then evaluated in the same manner one year later.
Results
Based on wrists, the one-year incidence of CTS was higher in poultry processing workers than non-poultry manual workers (19.8% vs. 11.7%, p = 0.022). Poultry workers had a higher odds (1.89; p = 0.089) of developing CTS over one year compared to non-poultry manual workers.
Discussion
Latino poultry processing workers have an incidence of CTS that is possibly higher than Latinos in other manual labor positions. Latino poultry workers’ high absolute and relative risk of CTS likely results from the repetitive and strenuous nature of poultry processing work.
doi:10.1002/ajim.22250
PMCID: PMC3946621  PMID: 23996875
Occupational health; vulnerable populations; manufacturing; immigrant workers
10.  Patterns and Stability over Time of Older Adults’ Diabetes-related Beliefs 
Objectives
We sought to identify coherent profiles of diabetes beliefs within discrete domains (ie causes, symptoms, consequences, self management, and medical management), and delineate consistency of belief profiles over one month.
Methods
Diabetes beliefs of rural-dwelling older adults were assessed with the Common Sense Model of Diabetes Inventory at baseline (N = 593) and one month later (N = 563).
Results
A discrete number of belief patterns were identified in each belief domain using latent class analysis. Belief patterns varied by the extent to which more popular or folk notions of diabetes encroached on biomedical understandings of the disease. Belief patterns were generally stable over time.
Conclusions
A manageable number of belief patterns can be identified and used to strengthen patient-centered care and, potentially, enhance diabetes management.
doi:10.14485/HBPR.1.2.3
PMCID: PMC4190851  PMID: 25309938
Common Sense Model of Illness; diabetes beliefs; type 2 diabetes; older adultst
11.  The association of respiratory symptoms and indoor housing conditions among migrant farmworkers in eastern North Carolina 
Journal of agromedicine  2014;19(4):395-405.
Farm labor housing has been described as among the worst in the nation, oftentimes with poor and unsanitary, indoor living conditions. The objective of this study was to evaluate the association between indoor environmental risk factors and respiratory health among migrant farmworker occupants (N=352) living in employer-provided housing. A cross-sectional sample of adult, Latino male farm laborers were administered a questionnaire to identify the prevalence of major respiratory symptoms. Self-reported and independent observations were made to evaluate environmental respiratory risk factors and indoor housing conditions, including but not limited to, the presence of cockroaches, rodents, pesticides, and visible signs of mold. Spirometry was performed to evaluate lung function using FEV1, FVC and FEV1/FVC ratio. Bivariate analysis was applied to evaluate associations between respiratory symptoms and selected indoor environmental risk factors. Findings for respiratory health included, prevalence of wheeze (11.4%), coughing up phlegm (17.3%), tightness of chest (16.8%) and runny or stuffy nose (34.4%). Respiratory risks identified inside the dwellings included, the use of pesticides or bug sprays for cockroaches (31.5%), rat or mouse poison (19.5%), visible signs of water damage in the bathroom (22.5%) and mold in the sleeping room (11.1%). Spirometry values were normal for most occupants, although statistically significant associations were found between; mold and coughing up phlegm when not having a cold (p=0.0262); presence of mold and asthma (p=0.0084); pesticides used in the home and tightness of chest (p=0.0001) and, use of tobacco and coughing up phlegm (p=0.0131). Although causal inference can be difficult to establish from a cross sectional study, findings from this study represents suggestive evidence that indoor environmental risk factors may be contributory factors for respiratory health problems among this vulnerable population.
doi:10.1080/1059924X.2014.947458
PMCID: PMC4185398  PMID: 25275405
Housing; respiratory health; farmworker; environmental health
12.  Self-Reported Sleep Difficulties and Self-Care Strategies Among Rural Older Adults 
This study examined the use of self-care strategies to address difficulty sleeping among community-dwelling older adults. Data were collected from a series of 18 questionnaires administered to 195 rural African American and white older adults in North Carolina. Participants reported whether they had experienced difficulty sleeping and strategies used to respond to the symptom. The most widely used strategies included ignoring the symptom, staying in bed or resting, and praying. Herb and supplement use were not reported. Ethnicity, income, and education were associated with use of specific self-care strategies for sleep. This variation suggests that older adults may draw on cultural understandings to interpret the significance of difficulty sleeping and influence their use of self-care strategies, including complementary and alternative medicine use. This information may enable health care providers to communicate with the older patients about sleep difficulty strategies to minimize sleep problems.
doi:10.1177/2156587213510005
PMCID: PMC4240534  PMID: 24647377
older adults; sleep; self-care
13.  Variation in the Interpretation of Scientific Integrity in Community-based Participatory Health Research 
Community-based participatory research (CBPR) has become essential in health disparities and environmental justice research; however, the scientific integrity of CBPR projects has become a concern. Some concerns, such as appropriate research training, lack of access to resources and finances, have been discussed as possibly limiting the scientific integrity of a project. Prior to understanding what threatens scientific integrity in CBPR, it is vital to understand what scientific integrity means for the professional and community investigators who are involved in CBPR.
This analysis explores the interpretation of scientific integrity in CBPR among 74 professional and community research team members from of 25 CBPR projects in nine states in the southeastern United States in 2012. It describes the basic definition for scientific integrity and then explores variations in the interpretation of scientific integrity in CBPR. Variations in the interpretations were associated with team member identity as professional or community investigators. Professional investigators understood scientific integrity in CBPR as either conceptually or logistically flexible, as challenging to balance with community needs, or no different than traditional scientific integrity. Community investigators interpret other factors as important in scientific integrity, such as trust, accountability, and overall benefit to the community. This research demonstrates that the variations in the interpretation of scientific integrity in CBPR call for a new definition of scientific integrity in CBPR that takes into account the understanding and needs of all investigators.
doi:10.1016/j.socscimed.2013.08.023
PMCID: PMC3914880  PMID: 24161098
14.  Older Adults’ Fears about Diabetes: Using Common Sense Models of Disease to Understand Fear Origins and Implications for Self-Management 
This study examines older adults’ fears of diabetes complications and their effects on self-management practices. Existing models of diabetes self-management posit that patients’ actions are grounded in disease beliefs and experience, but there is little supporting evidence. In-depth qualitative interviews were conducted with a community-based sample of 74 African American, American Indian, and white older adults with diabetes. Analysis uses Leventhal’s Common Sense Model of Diabetes to link fears to early experience and current self-management. Sixty-three identified fears focused on complications that could limit carrying out normal activities: amputation, blindness, low blood glucose and coma, and disease progression to insulin use and dialysis. Most focused self-management on actions to prevent specific complications, rather than on managing the disease as a whole. Early experiences focused attention on the inevitability of complications and the limited ability of patients to prevent them. Addressing older adults’ fears about diabetes may improve their diabetes self-management practices.
doi:10.1177/0733464811435506
PMCID: PMC4212900  PMID: 25364096
Rural; qualitative methods; common sense model
15.  Muscle Intrusion as a Potential Cause of Carpal Tunnel Syndrome 
Muscle & nerve  2014;50(4):517-522.
Introduction
To determine if there is an association between flexor digitorum and lumbrical muscle intrusion into the carpal tunnel and carpal tunnel syndrome (CTS).
Methods
513 manual laborers (1,026 wrists) were evaluated with ultrasound to determine if those with CTS had more muscle intrusion into the carpal tunnel than those without CTS. 190 of the participants without CTS at baseline (363 wrists) were followed over 1 year to determine if muscle intrusion at baseline predicted the development of CTS.
Results
Participants with CTS had more muscle within the carpal tunnel with the wrist in the neutral (P = 0.026) and flexed positions (P = 0.018) than those without CTS. Baseline muscle intrusion did not predict the development of CTS at 1 year.
Conclusions
Muscle intrusion into the carpal tunnel is associated with CTS, but muscle intrusion alone does not predict the development of CTS over the course of a year.
doi:10.1002/mus.24183
PMCID: PMC4107208  PMID: 24449488
Carpal tunnel syndrome; incidence; prevalence; ultrasound; EMG
16.  Correlates of Physician Trust Among Rural Older Adults with Diabetes 
Objectives
To examine the demographic, health and diabetes management correlates of physicians trust in a rural, multi-ethnic population with diabetes.
Methods
563 older (≥60 years) African American, American Indian and White adults completed in-home surveys, including the 11-item General Trust in Physicians Scale.
Results
Higher trust scores were seen among: older (≥75) participants (p < .01), those with fewer (<3) chronic health conditions (p < .01), and those who adhered to physical activity (p < .05) and dilated eye exam (p < .01) guidelines; the latter remained significant (eye exam, p = .019) or approached significance (physical activity, p = .051) after adjustment for potential confounders.
Conclusions
Physician trust may influence patient adherence to diabetes management recommendations. Efforts should be made to build trust in the patient-provider relationship to enhance patient outcomes.
doi:10.5993/AJHB.37.5.10
PMCID: PMC3761406  PMID: 23985289
physician trust; diabetes self-management; rural older adults; ethnic minority populations
17.  Evaluating the Effectiveness of a Lay Health Promoter-Led, Community-Based Participatory Pesticide Safety Intervention With Farmworker Families 
Health promotion practice  2012;14(3):425-432.
Pesticide safety training is mandated for migrant and seasonal farmworkers. However, none is required for family members, who implement home sanitation to protect against pesticide exposure and need to control pests in substandard housing. Controlled studies have demonstrated the efficacy of pesticide education programs for farmworker families, but no carefully evaluated demonstration projects have shown effectiveness in public health settings. This project evaluates a lay health promoter program to improve pesticide-related knowledge and practices. Promotoras from six agencies recruited families with children to deliver a six-lesson, in-home, culturally and educationally appropriate curriculum. Independently conducted pre- and posttests evaluated changes in knowledge and practices. Adults in 610 families completed the study. Most were from Mexico, with low levels of formal education. Significant improvements in knowledge were observed for all six lessons. Significant improvements were observed in practices related to para-occupational exposure and residential pest control. Lay health promoters with limited training and supervision can have significant impacts on families’ knowledge and practices. They represent a workforce increasingly recognized as a force for reducing health disparities by providing culturally appropriate health education and other services. This study adds to the literature by demonstrating their effectiveness in a public health setting with rigorous evaluation.
doi:10.1177/1524839912459652
PMCID: PMC4116736  PMID: 23075501
community-based participatory research; lay health promoter; demonstration project; migrant and seasonal farmworkers; occupational health and safety; pesticide exposure
18.  “Causes” Of Pesticide Safety Behavior Change in Latino Farmworker Families 
Objective
To identify the source of behavior change resulting from a health education intervention focused on pesticide safety.
Methods
Data were from the La Familia Sana demonstration project, a promotora-delivered pesticide safety education intervention conducted with immigrant Latinos (N = 610).
Results
The La Familia Sana program produced changes in 3 sets of pesticide safety behaviors. Changes in the conceptual targets of the intervention and promotora attributes explained 0.45–6% and 0.5–3% of the changes in pesticide-related behavior, respectively.
Discussion
The conceptual targets of the La Familia Sana program explained the greatest amount of change in pesticide-related behavior. Promotora attributes also contributed to intervention success
doi:10.5993/AJHB.37.4.3
PMCID: PMC3997211  PMID: 23985226
pesticide safety; Latinos; Immigrants; lay health advisors; translational research
19.  Attitudes of Older Adults Regarding Disclosure of Complementary Therapy Use to Conventional Physicians 
Many older adults use complementary therapies in health self-management but do not disclose this use to their physicians. This paper examines factors affecting disclosure of complementary therapy use, and it considers ethnic and gender differences in disclosure. It is based on a systematic qualitative analysis of in-depth interviews conducted with 62 African American and White adults aged 65 and older. Twenty-three of the 39 older adults who acknowledge using complementary therapies disclose this to their physicians. Themes leading to disclosure are believing that physicians are supportive and the importance of sharing information. Themes for not disclosing complementary therapy use include physicians’ negative views, complementary therapy use affecting physicians’ incomes, and the need to protect cultural knowledge. African American women were least likely to disclose use. Disclosure by elders to their physicians is a complex decision process. Medical encounters, including decisions regarding information to disclose, are embedded in broader social structures.
doi:10.1177/0733464812443084
PMCID: PMC4076141  PMID: 24991082
Complementary therapies; patient-provider communication; minority aging
20.  Traditional and Commercial Herb Use in Health Self-Management among Rural Multiethnic Older Adults 
This study analyzes the role of traditional and commercial herbs in older adults’ health self-management based on Leventhal’s Self-Regulatory Model conceptual framework. Sixty-two African American and white adults age 65 and older completed qualitative interviews describing the forms of herbs currently being used, sources of information about them, interpretations of health (acute symptoms or chronic conditions) that lead to their use, and the initiation and suspension of use. Traditional herbs are native to the region or have been traditionally cultivated; usually taken raw or boiled to produce tea; and used for treating mild symptoms. Commercial herbs are prepared as pills, extracts, or teas; they are purchased at local stores or ordered by catalog or internet; and used for health promotion, illness prevention or treatment of chronic conditions. Herbs are widely used among older adults; this analysis differentiates the types of herbs they use and their reasons for herbs use.
doi:10.1177/0733464811424152
PMCID: PMC4076146  PMID: 24991081
Complementary therapies; herbal remedies; rural aging; minority aging
21.  Physical Activity of Preschool-Aged Latino Children in Farmworker Families 
Objective
To describe time spent in sedentary and moderate-to-vigorous physical activity (MVPA) by children in Latino farmworker families; and delineate sources of variation in sedentary and MVPA.
Method
Data were from mother-child dyads (N = 248) in Latino farmworker households in North Carolina. Physical activity was assessed using accelerometers; mothers described their children’s characteristics and their physical and social environments.
Results
Children spent 6.2 hours/day sedentary (Median=369 minutes), and 6.0 minutes/day in MVPA. Children in Head Start spent more time sedentary, whereas children living where dogs roam freely were less sedentary. Children whose mothers limited screen time spent 2 more minutes in MVPA.
Conclusions
Preschool-aged Latino children in farmworker families are sedentary, engaging in very little MVPA.
doi:10.5993/AJHB.38.5.9
PMCID: PMC4060153  PMID: 24933141
preschool-aged children; Latinos; farmworkers; physical activity
22.  Relationship Between Nonprescribed Therapy Use for Illness Prevention and Health Promotion and Health-Related Quality of Life 
Objectives
This study describes the nonprescribed therapy use (prayer, over-the-counter medications [OTC's], home remedies, vitamins, herbs and supplements, and exercise) for health promotion among rural elders. It also delineates the association of such therapy use with physical and mental health-related quality of life (HRQoL).
Method
The sample (N = 200) consisted of African American and White elders from south-central North Carolina. Participants completed baseline interviews and repeated measures of nonprescribed therapy use over a 6-month follow-up.
Results
Prayer had the highest percentage (80.7%) of use for health promotion followed by OTC (54.3%); vitamins only (49.3%); herbs and supplements (40.5%); exercise (31.9%); and home remedies (5.2%). Exercise was significantly associated with better physical HRQoL (p < .05). However, elders who used nonprescribed therapies had poorer mental HRQoL than nonusers, adjusting for potential confounders.
Conclusion
This analysis suggests that use of some nonprescribed therapies for health promotion is associated with poorer mental HRQoL.
doi:10.1177/0733464812453518
PMCID: PMC4059179  PMID: 24781966
nonprescribed therapy use; health-related quality of life (HRQoL)
23.  Pesticides Present in Migrant Farmworker Housing in North Carolina 
Background
Migrant farmworkers are exposed to pesticides at work. Housing provided to migrant farmworkers may also expose them to pesticides, increasing their health risks. This analysis (1) describes the presence of organophosphorous (OP) and pyrethroid pesticides in North Carolina migrant farmworker houses, and (2) delineates associations of farmworker camp characteristics with pesticide detection and concentration.
Methods
In 2010, 186 migrant farmworkers camps in NC were recruited (participation rate of 82.3%); pesticide wipe samples for 176 houses were analyzed. Tobacco is the predominant hand-harvested crop in this region. Two farmworkers per camp completed interviews; a third assisted with a housing inspection. Gas chromatography–mass spectrometry was used to detect OP and pyrethroid pesticides. Covariates of pesticide detection and concentration were determined with ANOVA and Tobit regression.
Results
OPs were found in 166 of 176 houses (average of 2.4/house); pyrethroids were found in 171 houses (average of 4.3/house). The number of different OPs detected in each camp and concentrations of these OPs were not associated with camp and housing characteristics. The number of different pyrethroids detected in each camp and concentrations of these pyrethroids were associated with camps having residents with H2-A visas, a posted North Carolina Department of Labor Certificate of Inspection, no barracks, fewer residents, no bedroom weather protection or floor violations, and no roaches.
Conclusions
Farmworkers are exposed to pesticides where they live. Policy on removing pesticides from farmworker houses is needed. Reducing pesticides in farmworker houses will reduce one health risk confronted by this vulnerable population.
doi:10.1002/ajim.22232
PMCID: PMC4028316  PMID: 24038176
health disparities; vulnerable population; occupational exposures; environmental exposures; agricultural workers; immigrant workers
24.  Recruiting Underserved Mothers to Medical Research: Findings from North Carolina 
Representative samples are required for ethical, valid, and useful health research. Yet, recruiting participants, especially from historically underserved communities, can be challenging. This paper presents findings from in-depth interviews with 40 mothers about factors that might influence their willingness to participate or allow their children to participate in medical research. Saliency analysis organizes the findings. Frequent and important salient themes about research participation included concerns that it might cause participants harm, hope that participants might gain a health benefit, and recognition that time and transportation resources could limit participation. Ultimately, we propose that a theoretical model, such as the Theory of Planned Behavior (TPB), will facilitate more systematic evaluation of effective methods for recruitment and retention of participants in medical research. Future research should explore the utility of such a model for development of effective recruitment and retention strategies.
doi:10.1353/hpu.2013.0157
PMCID: PMC4009167  PMID: 24185171
Health research; recruitment; women; children; underserved populations
25.  Assessment of a Short Diabetes Knowledge Instrument for Older and Minority Adults 
The Diabetes educator  2013;40(1):68-76.
Purpose
The purpose of the study was to assess the performance of a short diabetes knowledge instrument (SDKI) in a large multi-ethnic sample of older adults with diabetes and to identify possible modifications to improve its ability to document diabetes knowledge.
Research Design and Methods
A sample of 593 African American, American Indian, and white female and male adults 60 years and older, with diabetes diagnosed at least two years prior, was recruited from eight North Carolina counties. All completed an interview that included a 16-item questionnaire to assess diabetes knowledge. A subsample of 46 completed the questionnaire a second time at a subsequent interview. Item-response analysis was used to refine the instrument to well-performing items. The instrument consisting of the remaining items was subjected to analyses to assess validity and test-retest reliability.
Results
Three items were removed after item-response analysis. Scores for the resulting instrument were lower among minority and older participants, as well as those with lower educational attainment and income. Scores for test-retest were highly correlated.
Conclusions
The SDKI (13 item questionnaire) appears to be a valid and reliable instrument to evaluate knowledge about diabetes. Assessment in a multi-ethnic sample of older adults suggests that this instrument can be used to measure diabetes knowledge in diverse populations. Further evaluation is needed to determine whether or not this instrument can detect changes in knowledge resulting from diabetes education or other interventions.
doi:10.1177/0145721713508824
PMCID: PMC3946961  PMID: 24163359

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