Emotional, behavioural and social correlates of missing values for BMI
Emotional, behavioural and social correlates of missing values for BMI
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DOI：
10.1136/adc.2008.139915
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发表时间：
2009-02-01
影响因子：
5.2
通讯作者：
Gomes-Pedro, J.
中科院分区：
文献类型：
--
作者：
Fonseca, H.;de Matos, M. Gaspar;Gomes-Pedro, J.
目的：为了研究的情绪，行为和社会相关的缺失值的身体质量指数（BMI）在一个全国性的代表性样本的葡萄牙youth.Design和方法：6131葡萄牙公立学校的学生年龄在11-16岁的第6，第8和第10年级谁参加了2002年HBSC/世卫组织的青少年健康调查。那些没有报告他们的体重和/或身高的人与他们的同龄人进行了比较。进行心理社会和行为变量的双变量分析以比较两组。多变量Logistic回归被用来确定是否变量显着相关的缺失值BMI在一个双变量水平预测缺失BMI时，控制所有其他变量在model.Results：6131青少年回答问卷，661（10.8%）没有报告他们的体重和/或身高。性别与BMI缺失无关。缺失值与年龄相关（调整后的比值比（aOR）= 2.56，95% CI 1.99至3.29，p < 0.001），久坐不动的生活方式（aOR= 1.53，95% CI 1.16 - 2.01，p < 0.01），身体满意度差（aOR= 1.34，95% CI 1.19至1.51，p < 0.001），无父亲（aOR= 1.62，95%CI 1.14 ~ 2.30，p < 0.01），缺乏异性朋友（aOR= 1.65，95%CI 1.03 ~ 2.66，p < 0.05）和对学习成绩的感知差（aOR= 1.23，95% CI 1.06 ~ 1.42，p < 0.01）。讨论：我们的研究结果表明，那些BMI值缺失的人往往有较差的身体形象，较差的健康行为和较差的社交网络。这些结果对不考虑缺失BMI的研究结果中的潜在偏倚有影响。
Objective: To examine the emotional, behavioural and social correlates of missing values for body mass index (BMI) in a nationally representative sample of Portuguese youth.Design and methods: 6131 Portuguese public school students aged 11-16 years in 6th, 8th and 10th grades who participated in the 2002 HBSC/WHO survey of adolescent health were included. Those not reporting their weight and/or height were compared with their peers. Bivariate analyses of psychosocial and behavioural variables were conducted to compare the two groups. Multivariate logistic regression was used to determine if variables significantly associated with missing values for BMI at a bivariate level predicted missing BMI when controlling for all other variables in the model.Results: Of 6131 adolescents answering the questionnaire, 661 (10.8%) did not report their weight and/or height. Gender was not associated with missing BMI. Missing values were significantly predicted by younger age ( adjusted odds ratio (aOR)= 2.56, 95% CI 1.99 to 3.29, p < 0.001), sedentary lifestyle ( aOR= 1.53, 95% CI 1.16 to 2.01, p < 0.01), poor body satisfaction ( aOR= 1.34, 95% CI 1.19 to 1.51, p < 0.001), absence of father ( aOR= 1.62, 95% CI 1.14 to 2.30, p < 0.01), lack of friends of the opposite sex ( aOR= 1.65, 95% CI 1.03 to 2.66, p < 0.05) and poor perception of academic achievement ( aOR= 1.23, 95% CI 1.06 to 1.42, p < 0.01).Discussion: Our findings suggest that those with missing values for BMI tend to have poorer body image, poorer health behaviours and poorer social networks. These results have implications for potential bias in the results of studies that do not account for missing BMI.