- 著者
- Hiroyuki Kikuchi Keisuke Kuwahara Kosuke Kiyohara Ester Villalonga-Olives Naomi Brewer Abimbola Aman-Oloniyo Pradeep Aggarwal María Clara Restrepo-Méndez Azusa Hara Masako Kakizaki Yuka Akiyama Kazunari Onishi Kayo Kurotani Maho Haseda Shiho Amagasa Isao Oze
- 出版者
- Japan Epidemiological Association
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- pp.JE20180184, (Released:2018-10-06)
- 参考文献数
- 25
- 被引用文献数
- 9
- 著者
- Ryoko Tajima Mai Matsumoto Aya Fujiwara Xiaoyi Yuan Chisa Shinsugi Emiko Okada Kayo Kurotani Tetsuji Yokoyama Hidemi Takimoto
- 出版者
- Japan Epidemiological Association
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- pp.JE20220220, (Released:2023-03-11)
- 参考文献数
- 63
- 被引用文献数
- 1
Background: We aimed to clarify whether differences in food group intake according to household income have changed over the last decade in Japanese people aged 20 years or older.Methods: This cross-sectional study was based on the 2010, 2014, and 2018 National Health and Nutrition Surveys in Japan. Food intake was assessed using a one-day semi-weighed household dietary record. The participants were categorized into three groups based on their income. The mean of each food intake according to the income group was estimated by adjusting for age, occupation, and number of participants from the same household. The significance of the interaction terms between income and survey year was evaluated to assess the change in income-related differences in food intake over time.Results: Cereal intake was lower in the middle- and the highest-income groups than in the lowest-income group, regardless of sex, and the interaction between income and year was insignificant for cereal intake. In the former two surveys, vegetable intake was higher among the highest-income women, while in the 2018 survey, the vegetable intake decreased in the women in the middle- and the highest-income groups. The interaction between income and year was significant for vegetable intake among the women. For other foods, the differences in intake among the income groups did not significantly change over time.Conclusions: The tendency for lower cereal intake in the higher-income groups was consistent over time in both the sexes and the tendency for higher vegetable intake in the highest income women disappeared over time.
- 著者
- Ami Fukunaga Yosuke Inoue Takeshi Kochi Huanhuan Hu Masafumi Eguchi Keisuke Kuwahara Takako Miki Kayo Kurotani Akiko Nanri Isamu Kabe Tetsuya Mizoue
- 出版者
- Japan Epidemiological Association
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- vol.30, no.7, pp.288-294, 2020-07-05 (Released:2020-07-07)
- 参考文献数
- 45
- 被引用文献数
- 7
Background: While a growing body of research suggests a protective role of healthy lifestyle against depression, evidence from prospective studies is scarce. We constructed a healthy lifestyle index (HLI) and examined its prospective association with depressive symptoms in a Japanese working population.Methods: Participants were 917 employees (19–68 years old) who were free from depressive symptoms at baseline in 2012–2013 and attended the 3-year follow-up survey. The HLI (range: 0–7 points) was constructed by assigning 1 point to each healthy lifestyle factor, namely, (1) normal body mass index (18.5–24.9 kg/m2), (2) non-smoking, (3) no or moderate alcohol intake (≤23 g ethanol/day), (4) adequate physical activity (≥7.5 metabolic equivalent-hours/week), (5) high vegetable intake (≥350 g/day), (6) high fruit intake (≥200 g/day), and (7) adequate sleep duration (6–8.9 hours/day), which was categorized into three groups (low: 0–2 points; middle: 3–4 points; and high: 5–7 points). Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale.Results: A total of 155 incident cases (17.0%) of depressive symptoms were identified at the follow-up survey. Compared with the low HLI group, multivariable-adjusted odds ratios of depressive symptoms were 0.74 (95% confidence interval, 0.48–1.15) and 0.55 (95% confidence interval, 0.31–0.99) for the middle and high HLI groups, respectively (P-trend = 0.041).Conclusion: The present study suggests the importance of adherence to multiple healthy lifestyle factors in prevention of depressive symptoms.