Testing the Effects of Dietary Seafood Consumption on Depressive Symptoms
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This chapter presents a protocol for assessing the effects dietary seafood consumption on depressive symptoms. We designed a cross-sectional study of 206 participants recruited in two Torres Strait Island communities. Depressive symptoms were assessed using the adapted Patient Health Questionnaire-9 (aPHQ-9), diet was analyzed with a structured questionnaire, omega-3 and omega-6 fatty acid concentrations were measured via a capillary dried blood spot system, and plasma levels of triglycerides and cholesterol were measured by gas-phase chromatography. Finally, we tested the relationship between seafood consumption, blood lipid concentrations, and depression scores using independent samples t-tests and a logistic and quantile regression model.
Key wordsDepression Patient Health Questionnaire-9 Screening Omega-3 fatty acids Omega-6 fatty acids Eicosapentaenoic acid Docosahexaenoic acid
This work was funded by NHMRC Grant GNT0631947 and by the Centre for Chronic Disease Prevention. We thank all study participants and their families of the Waiben and Mer communities, as well as the Torres and Cape Hospital and Health Service Primary Health Care and Mental Health teams, the Mer Island Primary Health Care Centre team, and JCU medical and dental students.
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