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  • Title: Associations Between Unhealthy Weight-Loss Strategies and Depressive Symptoms.
    Author: Chaitoff A, Swetlik C, Ituarte C, Pfoh E, Lee LL, Heinberg LJ, Rothberg MB.
    Journal: Am J Prev Med; 2019 Feb; 56(2):241-250. PubMed ID: 30661572.
    Abstract:
    INTRODUCTION: There appears to be a link between weight loss and improved mental health, but less is known about how using unhealthy weight-loss strategies impacts the odds of reporting depression. METHODS: This study includes respondents from the National Health and Nutrition Examination Survey from 2005 to 2014 who attempted to lose weight over the past year. Analysis occurred in 2017. Multivariable logistic regression was used to describe associations between all weight-loss strategies, including those grouped as unhealthy (smoking, vomiting, laxatives, skipping meals, and using diet pills), and the adjusted odds of depression (Patient Health Questionnaire-9 score ≥10). The model was then stratified by BMI, sex, race, and antidepressant use to compare the effect of using at least one unhealthy weight-loss strategy and depression within certain populations. RESULTS: The sample included 6,765 respondents (weighted n=59.2 million, 95% CI=55.5, 62.9 million). Of these respondents, 18.0% (n=1,270) reported using at least one unhealthy weight-loss strategy. In unadjusted analysis, unhealthy weight-loss strategies were generally associated with higher incidence and odds of reporting depression. In multivariable analysis, using at least one unhealthy weight-loss strategy was significantly associated with odds of reporting depression (AOR=1.47, 95% CI=1.14, 1.91, p<0.01). When the model was stratified, this effect was statistically significant among respondents with class I or II obsesity (AOR=2.20, 95% CI=1.56, 3.10, p<0.01); female respondents (AOR=1.46, 95% CI=1.06, 2.00, p=0.02); and respondents who did not use an antidepressant (AOR=1.57, 95% CI=1.14, 2.15, p=0.01). CONCLUSIONS: Unhealthy weight-loss strategies are associated with increased odds of depression. This may inform screening practices and public health messaging.
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