Department of Global Health Promotion, Tokyo Medical and Dental University (TMDU), 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
Nutrients. 2019 Nov 21;11(12):2859. doi: 10.3390/nu11122859.
This study aimed to investigate the association between the frequency of home cooking and obesity among children in Japan. We used cross-sectional data from the Adachi Child Health Impact of Living Difficulty study, a population-based sample targeting all fourth-grade students aged 9 to 10 in Adachi City, Tokyo, Japan. Frequency of home cooking was assessed by a questionnaire for 4258 caregivers and classified as high (almost every day), medium (4-5 days/week), or low (≤3 days/week). School health checkup data on height and weight were used to calculate body mass index z-scores. Overall, 2.4% and 10.8% of children were exposed to low and medium frequencies of home cooking, respectively. After adjusting for confounding factors, children with a low frequency of home cooking were 2.27 times (95% confidence interval: 1.16-4.45) more likely to be obese, compared with those with a high frequency of home cooking. After adjustment for children's obesity-related eating behaviors (frequency of vegetable and breakfast intake and snacking habits) as potential mediating factors, the relative risk ratio of obesity became statistically non-significant (1.90; 95% confidence interval: 0.95-3.82). A low frequency of home cooking is associated with obesity among children in Japan, and this link may be explained by unhealthy eating behaviors.
本研究旨在探讨日本儿童在家烹饪频率与肥胖之间的关联。我们使用了来自东京足立区儿童生活困难对健康影响研究的横断面数据，该研究是针对日本足立区所有四年级学生（9-10 岁）的基于人群的样本。通过问卷评估了 4258 位照顾者的在家烹饪频率，并将其分为高（几乎每天）、中（4-5 天/周）或低（≤3 天/周）频率。利用学校健康检查数据计算身高和体重的体质指数 z 分数。总体而言，分别有 2.4%和 10.8%的儿童暴露于低和中频率的家庭烹饪。在校正混杂因素后，与高频率烹饪的儿童相比，低频率烹饪的儿童肥胖的风险高出 2.27 倍（95%置信区间：1.16-4.45）。在校正了与儿童肥胖相关的饮食行为（蔬菜和早餐摄入量以及零食习惯的频率）作为潜在的中介因素后，肥胖的相对风险比变得无统计学意义（1.90；95%置信区间：0.95-3.82）。日本儿童中，低频率的家庭烹饪与肥胖有关，而这种关联可能是由不健康的饮食习惯所导致的。
