Validity of self-reported height and weight in women of reproductive age
Validity of self-reported height and weight in women of reproductive age
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DOI：
10.1007/s10995-006-0157-0
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发表时间：
2007-03-01
影响因子：
2.3
通讯作者：
Huber, Larissa R. Brunner
中科院分区：
文献类型：
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作者：
Huber, Larissa R. Brunner
目的：身高和体重是流行病学研究中的关键变量，包括生殖结局研究。最好由经过培训的研究人员收集这些信息。然而，直接测量并不总是可行的。本研究的目的是调查自我报告的身高和体重的准确性，以及由此计算出的身体质量指数（BMI）（被称为自我报告的BMI），在一组育龄妇女中根据选择的人口统计学变量。共有381名妇女提供了自我报告的身高，体重和人口统计学信息的问卷调查避孕趋势的研究，同时参加家庭医学诊所。身高和体重也从这些研究参与者中的275人的医疗记录中提取。使用配对t检验比较身高、体重和BMI的自我报告值和测量值。采用方差分析、卡方检验和Fisher精确检验来研究自我报告值和测量值之间的差异如何随选定的人口统计学因素而变化。结果：女性低估了4.6磅的体重，高估了0.1英寸的身高，低估了0.8 kg/m2的BMI。所有女性，无论年龄、教育程度、种族或婚姻状况，都低估了自己的体重。除高中文化程度的妇女外，所有群体的这些差异都具有统计学意义（p <0.01）。自我报告的身高和体重的措施分类84%的妇女到适当的BMI categorization.Conclusions：总体而言，自我报告的身高和体重被发现在这项研究中，给真实的BMI的准确代表。在准确报告身高和体重的能力方面存在一些人口统计学差异，特别是在人种/种族方面。未来的研究应该在更大的人群中调查这些种族/民族差异。
Objectives: Height and weight are key variables in epidemiologic research, including studies of reproductive outcomes. Optimally, this information is collected by trained study personnel. However, direct measurements are not always feasible. The purpose of this study was to investigate the accuracy of self-reported height and weight, as well as the resultant body mass index (BMI) calculated from self-reported height and weight (referred to as self-reported BMI), among a group of women of reproductive age according to select demographic variables.Methods: A total of 381 women provided self-reported height, weight, and demographic information on a questionnaire for a study of contraceptive trends while attending a Family Medicine clinic. Height and weight were also abstracted from medical records for 275 of these study participants. Self-reported and measured values for height, weight, and BMI were compared using paired t-tests. Analysis of variance, chi-square tests, and Fisher's Exact tests were used to examine how differences between self-reported and measured values varied by select demographic factors.Results: Women underestimated weight by 4.6 pounds, overestimated height by 0.1 inches, and underestimated BMI by 0.8 kg/m(2). All women, regardless of age, education, race/ethnicity, or marital status, underestimated their weight. These differences were statistically significant for all groups (p < 0.01) with the exception of women with a high school education. Self-reported height and weight measures classified 84% of women into appropriate BMI categories.Conclusions: Overall, self-reported height and weight were found to give an accurate representation of true BMI in this study. There were some demographic differences in the ability to accurately report height and weight, particularly with respect to race/ethnicity. Future studies should investigate these racial/ethnic differences among a larger population.