Sib-size, birth order and risk of overweight in junior high school students in Japan: Results of the Toyama Birth Cohort Study
Sib-size, birth order and risk of overweight in junior high school students in Japan: Results of the Toyama Birth Cohort Study
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DOI：
10.1016/j.ypmed.2006.07.015
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发表时间：
2007-01-01
影响因子：
5.1
通讯作者：
Kagamimori, Sadanobu
中科院分区：
文献类型：
--
作者：
Wang, Hongbing;Sekine, Michikazu;Kagamimori, Sadanobu
Objective.探讨同胞数、胎次与初中生超重风险的关系。法2002年6月至7月，通过对日本富山县7,959名初中学生进行问卷调查，获得了受试者及其父母的同胞数、出生顺序、身高和体重以及其他生活方式因素。进行Logistic回归分析以检查相关性。男孩和女孩被分开分析。结果来自三个孩子家庭的男孩显示出比只有男孩的超重风险显著降低（比值比（OR）= 0.66，p = 0.010），来自大家庭的女孩的风险显著低于只有女孩的风险（趋势p = 0.001）。与中等出生的女孩相比，只有女孩超重的风险显著更高（OR = 2.22，p < 0.001）。男孩超重的危险性随着哥哥姐姐人数的增加而显著降低。而任何一个兄弟姐妹的增加对女孩超重风险的降低作用几乎相同（OR范围为0.74 ~ 0.76，p < = 0.001）。结论没有兄弟姐妹的儿童是最有可能超重的儿童，特别是女孩。出生顺序和同胞的大小可能是超重和肥胖的发展的危险因素。(c)2006年爱思唯尔公司All rights reserved.
Objective. To investigate whether there is a relationship between sib-size, birth order and the risk of overweight in junior high school students. Method. Sib-size, birth order, height and weight of subjects and their parents, and other lifestyle factors were obtained through a questionnaire survey conducted between June and July 2002 from 7,959 junior high students in Toyama prefecture, Japan. Logistic regression analysis was performed to examine the associations. Boys and girls were analyzed separately. Results. Boys from three-child families showed a significantly lower risk of overweight than only boys (odds ratio (OR) = 0.66, p = 0.010), and girls from larger families have a significantly lower risk than only girls (p for trend = 0.001). Compared to middle-born girls, only girls have a significantly higher risk of overweight (OR = 2.22, p < 0.001). The risk of overweight in boys was significantly lower with increasing number of elder sibling or sister. However, increasing of any one sibling almost had the same risk reduction effect on the risk of overweight in girls (OR ranged from 0.74 to 0.76, p < = 0.001). Conclusion. Children without siblings are the ones most at risk for overweight, especially in girls. Birth order and sib-size are possible risk factors for the development of over-weight and obesity. (c) 2006 Elsevier Inc. All rights reserved.