Is ideal body image related to obesity and lifestyle behaviours in African American adolescents?
Is ideal body image related to obesity and lifestyle behaviours in African American adolescents?
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DOI：
10.1111/j.1365-2214.2011.01227.x
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发表时间：
2012-03-01
影响因子：
1.9
通讯作者：
Wang, Y.
中科院分区：
文献类型：
--
作者：
Chen, X.;Wang, Y.
儿童肥胖症的流行已成为美国的一个公共卫生问题，尤其是在非洲裔美国青少年中。研究理想的身体形象（IBI）和肥胖和相关的生活方式因素之间的关联在非洲裔美国儿童和青少年是limited.Methods从402低收入的非洲裔美国青少年年龄在10-14岁的四个芝加哥公立学校收集的数据。问卷被用来评估IBI，体重感知，体重控制的做法，对食物和身体活动的自我效能。使用测量的体重和身高计算体重指数。IBI和体重感知，超重/肥胖和生活方式的behaviors. Results之间的关联进行了评估，使用线性和逻辑回归models.Results最常选择的理想的身体大小是第四个的八个轮廓（从最瘦到最重）的男孩（55%）和女孩（49%）。超重和肥胖女生选择的理想体型较大（趋势检验：P < 0.001）。与中等理想身材的女孩相比，选择较小身材的女孩有两倍的可能性有不健康的饮食，这表明水果和牛奶摄入量较少;水果摄入量的比值比（OR）和95%置信区间（95%CI）为2.40（1.15-5.02）（= 1次/天; OR = 0.11（0.02-0.50））。IBI较大的女孩不太可能花费更多的屏幕时间[OR = 0.12（0.02-0.70）]，并且报告了更好的食物选择意图（P < 0.05）。超重和肥胖的男孩和女孩似乎有更好的食物选择意向和食物自我效能比他们的非超重同龄人（趋势检验：均P <0. 01）。结论理想的身体形象与低收入非洲裔美国青少年的体重状况，食物自我效能和生活方式行为。
Background Childhood obesity epidemic has become a public health issue in the USA, especially among African American youths. Research on the association between ideal body image (IBI) and obesity and related lifestyle factors among African American children and adolescents is limited.Methods Data collected from 402 low-income African American adolescents aged 10-14 years in four Chicago public schools were used. Questionnaires were used to assess IBI, weight perception, weight control practices, and self-efficacy towards food and physical activity. Body mass index was calculated using measured weight and height. Associations between IBI and weight perception, overweight/obesity and lifestyle behaviours were assessed using linear and logistic regression models.Results The most frequently chosen ideal body size was the fourth of eight silhouettes (from thinnest to heaviest) for boys (55%) and girls (49%). Overweight and obese girls selected larger ideal body figures than the others (trend test: P < 0.001). Compared with those with middle ideal body figures, girls who selected smaller ones were twice as likely to have an unhealthy diet as indicated by less fruit and milk consumption; the odds ratios (ORs) and 95% confidence intervals (95% CIs) were 2.40 (1.15-5.02) for fruits intake (= once/day; OR = 0.11 (0.02-0.50)]. Girls with larger IBI were less likely to spend more screen time [OR = 0.12 (0.02-0.70)] and reported better food choice intentions (P < 0.05). Overweight and obese boys and girls appeared to have better food choice intentions and food self-efficacy than their non-overweight peers (trend test: both P < 0.01).Conclusions Ideal body image is associated with weight status, food self-efficacy and lifestyle behaviours among low-income African American adolescents.