Impact of Common Mental Disorders on Food Insecurity among Women in Butajira, Ethiopia: A Cohort Study
Abstract Background: There is a growing body of evidence for an association between common mental disorders and food insecurity. However, since most studies have been cross-sectional, it has not been possible to differentiate the direction of the association. The aim of this study was to determine the effect of common mental disorders on food insecurity using a prospective cohort study design. Methods: The study was carried out in Butajira, south-central Ethiopia among mothers who were enrolled in the CMaMiE cohort. A total of 1815 enrolled women were evaluated for symptoms of CMD using the Self-Reporting Questionnaire-20 (SRQ-20) at two time points; August 2012 (time 1, T1) and in August 2014 (time 2, T2). Probable CMD was defined when mothers reported six or more affirmative (yes) responses to the SRQ-20. Household food insecurity was measured using the Household Food Insecurity Access Scale (HFIAS) in December 2017 (time 3, T3). Zero inflated negative binomial regression was used to determine the independent effects of CMDs at T1 and T2 on food insecurity score at T3. A Poisson working model was used to determine the risk of being severely food insecure associated with CMD. Results : About two thirds of women (67.0%) were living in food insecure households.The prevalence of CMD was 4.8% at T1 and 10.0% at T2 and only 1.2 % (n=22) women had CMD at both time points. After controlling for potential confounders, women with CMD at T2 only (RR=1.14; 95%CI: 1.02, 1,29) had higher HFIAS scores at T3; Women with CMD at T1 only were not significantly associated with HFIAS score at T3. Women with CMD at T1 only had 4 times higher risk of severe food insecurity (RR=3.96, 95% CI: 2.15-7.27) and women with CMD at T2 only had 2.2 times higher risk of severe food insecurity (RR=2.24, 95% CI: 1.27-3.95) at follow-up. Conclusion : Common mental disorders among mothers were prospectively associated with increased risk of household food insecurity in this rural Ethiopian population. Possible mechanisms such as increased cost for health care, lost productivity and decreased self-efficacy warrant further investigation for their potential to prevent future food insecurity.