Nutrient adequacy of Japanese schoolchildren on days with and without a school lunch by household income

Food & Nutrition Research

Akemi Nakanishi¹  Yumi Arai¹  Hiromi Ishida¹  Saori Saito²  Sayaka Hazano³  Chika Horikawa⁴  Nobuko Murayama⁴  Miho Nozue⁵  Taeko Yamamoto⁶  Yukiko Yoshioka⁷  Aya Abe⁸ 

[1] Department of Applied Nutrition, Kagawa Nutrition University, Saitama, Japan;Department of Health and Dietetics, Teikyo Heisei University, Tokyo, Japan;Department of Health and Nutrition, Matsumoto University, Nagano, Japan;Department of Health and Nutrition, University of Niigata Prefecture, Niigata, Japan;Department of Health and Nutritional Sciences, Tokoha University, Shizuoka, Japan;Department of Nutrition, Kanagawa University of Human Services, Kanagawa, Japan;Department of Nutritional Management, Sagami Women’s University, Kanagawa, Japan;Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan;

关键词: japan;    household income;    schoolchildren;    nutrient adequacy;    dietary reference intakes;   

DOI  :  10.29219/fnr.v64.5377

来源: DOAJ

【 摘 要 】

Background: Evidence for whether the nutrient intakes of Japanese schoolchildren differ according to household income is sparse. Objective: We investigated the role of school lunches for nutrient adequacy among Japanese primary school children using dietary reference intakes in a cross-sectional survey. Design: Participants were 10- to 11-year-old (5th grade) children from 19 public primary schools in four prefectures of East Japan, and 836 children were analyzed. The participants completed 24-h dietary records with photographs of their meals for 4 consecutive days, composed of 2 days with and 2 days without a school lunch. −Children’s household income was obtained from questionnaires that were completed by the participants’ guardians and divided into the following three categories: low (0.2236–2.2361 million yen; n = 319), middle (2.3333–2.8868 million yen; n = 194), and high (3.1305–6.3640 million yen; n = 323). Logistic regression analyses were used to estimate the odds ratios for whether participants had poor nutrient intakes, with adjustment for confounders. Results: On days without a school lunch, the prevalence of nutrient shortages was significantly higher compared with those on days with a school lunch for most macro- and micronutrients among all three levels of household income. Children from low-income households had higher rates of nutrient shortages for vitamin B6, pantothenic acid, K, Mg, P, Fe, and Zn than those from middle-income households on days without a school lunch (P = 0.004, 0.001, 0.001, 0.006, 0.037, <0.001, and 0.015, respectively), but those differences were not significant on days with a school lunch. Conclusion: The findings suggest that school lunches are important for achieving adequate nutrient intakes in schoolchildren and reduce disparities of adequate nutrient intake by household income levels.

【 授权许可】

Unknown