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Full-Text Articles in Medicine and Health Sciences
Serum 25-Hydroxyvitamin D Concentrations And Season-Specific Correlates In Japanese Adults, Akiko Nanri, Leng Huat Foo, Kazutoshi Nakamura, Ai Hori, Kalpana Poudel-Tandukar, Yumi Matsushita, Tetsuya Mizoue
Serum 25-Hydroxyvitamin D Concentrations And Season-Specific Correlates In Japanese Adults, Akiko Nanri, Leng Huat Foo, Kazutoshi Nakamura, Ai Hori, Kalpana Poudel-Tandukar, Yumi Matsushita, Tetsuya Mizoue
Elaine Marieb College of Nursing Faculty Publication Series
Background: Several lines of evidence indicate an important role for vitamin D in the prevention of a range of diseases. Blood vitamin D levels show clear seasonal variation; however, data on the determinants of vitamin D status for each season are limited. We investigated the association between lifestyle and serum vitamin D concentration by season in Japanese workers. Methods: Subjects were 312 men and 217 women aged 21 to 67 years who worked in municipal offices in Northern Kyushu, Japan and participated in a periodic checkup in July or November. Multiple linear regression analysis was used to examine the association …
Association Between Serum 25-Hydroxyvitamin D And Depressive Symptoms In Japanese: Analysis By Survey Season, A. Nanri, T. Mizoue, Y. Matsushita, Kalpana Poudel-Tandukar, M. Sato, M. Ohta, N. Mishima
Association Between Serum 25-Hydroxyvitamin D And Depressive Symptoms In Japanese: Analysis By Survey Season, A. Nanri, T. Mizoue, Y. Matsushita, Kalpana Poudel-Tandukar, M. Sato, M. Ohta, N. Mishima
Elaine Marieb College of Nursing Faculty Publication Series
Both depressive symptoms and vitamin D insufficiency are common during winter. This study examined the association between serum 25-hydroxyvitamin D and depressive symptoms by survey season. Subjects were 527 municipal employees aged 21–67 years of two municipal offices in Japan. Overall, there was no measurable association. However, in the workplace surveyed in November, multivariate-adjusted odds ratios (95% confidence interval) of having depressive symptoms (Center for Epidemiologic Studies Depression score of X16) for the lowest through highest quartiles of serum 25-hydroxyvitamin D were 1.00 (reference), 0.84 (0.45–1.58), 0.83 (0.44–1.58) and 0.59 (0.30–1.15), respectively (trend P ¼ 0.14). The association with the …