Dietary vitamin D intake and prevalence of depressive symptoms during pregnancy in Japan
Nutrition, Available online 18 July 2014 DOI: 10.1016/j.nut.2014.06.013
Yoshihiro Miyake, M.D., Ph.Da, , , Keiko Tanaka, D.D.S., Ph.Da, Hitomi Okubo, Ph.Db, Satoshi Sasaki, M.D., Ph.Dc, Masashi Arakawa, Ph.Dd
Objective
The relationship between vitamin D levels and depressive symptoms has been explored, but the results are inconsistent. Epidemiological evidence concerning the relationship between dietary vitamin D intake and depressive symptoms in pregnancy is nonexistent. The current cross-sectional study examined this issue in Japan.
Methods
Study subjects were 1745 pregnant women. Depressive symptoms were defined as present when subjects had a Center for Epidemiologic Studies Depression Scale score of 16 or higher. Dietary intake during the preceding month was assessed using a self-administered diet history questionnaire. Adjustment was made for age; gestation; region of residence; number of children; family structure; history of depression; family history of depression; smoking; secondhand smoke exposure at home and at work; job type; household income; education; body mass index; intake of saturated fatty acids; and intake of eicosapentaenoic acid plus docosahexaenoic acid.
Results
The prevalence of depressive symptoms during pregnancy was 19.3%. Higher dietary vitamin D intake was significantly associated with a lower prevalence of depressive symptoms during pregnancy, independent of potential dietary and non-dietary confounding factors. Multivariate odds ratios (95% confidence intervals) for depressive symptoms during pregnancy in the first, second, third, and fourth quartiles of assessed intake of vitamin D were 1 (reference), 0.79 (0.55−1.11), 0.73 (0.49−1.07), and 0.52 (0.30−0.89), respectively (P for trend = 0.02).
Conclusion
The current cross-sectional study in Japan suggests that higher vitamin D intake may be associated with a lower prevalence of depressive symptoms during pregnancy.
Publisher wants $35 for the PDF so we are unable to find out how much vitamin D the women were consuming
See also Vitamin D Life
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