Universidade de São Paulo, São Paulo, Brasil.
Cad Saude Publica. 2010 Jan;26(1):110-22. doi: 10.1590/s0102-311x2010000100012.
The objective of this study was to examine factors associated with the validity of self-reported anthropometric measures. The authors selected 726 adults, aged 40 or older, living in the greater metropolitan region of São Paulo, Brazil. Self-reported weights and heights obtained from telephone interviews were compared to values measured directly by means of a multicenter survey. Mean differences (+/-SD) between self-reported and measured weights and heights among men were 0.54 (+/-0.30kg) and 1.98 (+/-0.31cm); while among women, they were -0.48 (+/-0.23kg) and 3.97 (+/-0.28cm), respectively. Sensitivity and specificity to diagnose obesity were 71% and 98% for males, and 78% and 96%, for females, respectively. There was good agreement between measured and self-reported weights and body mass index (BMI) among both sexes, however, self-reported height was less reliable. Self-reported weight and height obtained from telephone interviews are valid to estimate the obesity prevalence in this population, although systematic bias was found. Thus, it is desirable that researchers develop their own equations depending on the population being studied.
本研究旨在探讨与自我报告人体测量学测量值的有效性相关的因素。作者选择了居住在巴西圣保罗大都市区的 726 名 40 岁或以上的成年人。通过电话访谈获得的自我报告体重和身高与通过多中心调查直接测量的值进行了比较。男性自我报告和测量体重和身高之间的平均差异（+/-SD）分别为 0.54（+/-0.30kg）和 1.98（+/-0.31cm）；而女性分别为-0.48（+/-0.23kg）和 3.97（+/-0.28cm）。男性肥胖诊断的敏感性和特异性分别为 71%和 98%，女性分别为 78%和 96%。无论性别如何，测量体重和 BMI 与自我报告体重和 BMI 之间均具有良好的一致性，但自我报告的身高则不太可靠。通过电话访谈获得的自我报告体重和身高可用于估计该人群的肥胖患病率，尽管存在系统偏差。因此，研究人员根据研究人群开发自己的方程是可取的。
