Abstract
Purpose
To identify patterns of behavioral adherence among 388 African Americans who participated in the Weight Loss Maintenance trial and examine associated psychosocial factors.
Methods
Using repeated measures latent class analysis, we modeled patterns of adherence to recommendations regarding fruit and vegetable, total fat, and saturated fat intake and physical activity at baseline, 6, and 18 months. Latent classes were compared on the SF-36 (mental health composite and vitality subscale), Perceived Stress Scale, and PHQ-8 at each time point.
Results
Three distinct latent classes emerged: Nutrition Adherers (n = 96); Physical Activity Adherers (n = 61); and Non-Adherers (n = 231). All groups showed initial improvement in psychosocial measures followed by relapse. Non-Adherers had significantly lower mean mental health and vitality scores and higher depression scores than adherers at 6 and 18 months.
Conclusion
Psychological well-being should be addressed with African Americans in weight loss treatment to enhance behavior change and improve weight loss outcomes.
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This work was supported by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health under award Number R21DK104246.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the Kaiser Permanente Northwest Institutional Review Board and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
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Fitzpatrick, S.L., Brooks, N., Bray, B. et al. Adherence to behavioral recommendations for weight loss and associated psychosocial factors among African American adults. J Behav Med 43, 859–864 (2020). https://doi.org/10.1007/s10865-019-00108-2
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DOI: https://doi.org/10.1007/s10865-019-00108-2