Anhui Medical University Affiliated Lu'an Municipal Center for Disease Control and Prevention/Lu'an Municipal Center for Disease Control and Prevention, Lu'an, Anhui, China.
Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, Anhui, China.
PeerJ. 2024 Nov 15;12:e18525. doi: 10.7717/peerj.18525. eCollection 2024.
There are differing opinions and findings about the accuracy of self-reported data. This study sought to assess the accuracy of self-reported height, weight, and waist circumference (WC) data among adult residents in poor, rural areas of China.
Multi-stage stratified cluster random sampling was used to sample rural adult residents in Jinzhai County. Intraclass correlations (ICCs), Bland-Altman plots with limits of agreements (LOAs), and Cohen's kappa were used to examine the accuracy of self-reported data. Multiple linear regression was used to explore the effect of demographic and socioeconomic variables.
Height was over-reported by an average of 0.67 cm, weight and WC were both under-reported, by an average of 0.004 kg and 1.09 cm, respectively. The ICC for height was 0.92, the ICC for weight was 0.93, and the ICC for WC was 0.93. Bland-Altman plots showed no trend in variability with increasing height, weight, and WC, but 95% of the LOAs were wide, especially for WC. The percentage agreement (kappa) for BMI was 82.10% (0.71), and the percentage agreement for WC was 83.56% (0.66). Overall, obesity, overweight, and increased WC were underestimated by 0.56%, 2.64%, and 6.89%, respectively. Assessments of which demographic and socioeconomic factors were associated with statistically significant differences between self-reported and measured data showed that education (junior school . primary or below: = -0.56, 95% CI [-1.01 to -0.11]) and occupation (others . professionals: = 2.16, 95% CI [0.62-3.70]) were associated with differences between measured and self-reported height; occupation (industrial and commercial service . professionals: = 1.57, 95% CI [0.52-2.61]) was associated with differences between measured and self-reported weight; and gender (women . men: = -1.74, 95% CI [-2.51 to -0.97]) and age (60- . 18-44: = -1.62, 95% CI [-2.88 to -0.36]) were associated with differences between measured and self-reported WC.
Self-reported height and weight were shown to be reliable in poor, rural areas of China, but self-reported WC should be used with caution. To improve the accuracy of self-reported data, certain subgroups should be targeted for educational interventions.
关于自我报告数据的准确性，存在不同的观点和发现。本研究旨在评估中国贫困农村地区成年居民自我报告的身高、体重和腰围（WC）数据的准确性。
采用多阶段分层整群随机抽样方法，抽取金寨县农村成年居民。使用组内相关系数（ICC）、具有一致性界限的 Bland-Altman 图和 Cohen's kappa 来评估自我报告数据的准确性。采用多元线性回归探索人口统计学和社会经济学变量的影响。
身高平均虚报 0.67cm，体重和 WC 平均低估 0.004kg 和 1.09cm。身高的 ICC 为 0.92，体重的 ICC 为 0.93，WC 的 ICC 为 0.93。Bland-Altman 图显示，随着身高、体重和 WC 的增加，变异性没有趋势，但 95%的一致性界限较宽，特别是 WC。BMI 的百分比一致性（kappa）为 82.10%（0.71），WC 的百分比一致性为 83.56%（0.66）。总体而言，肥胖、超重和 WC 增加分别低估了 0.56%、2.64%和 6.89%。评估哪些人口统计学和社会经济学因素与自我报告和测量数据之间存在统计学显著差异的结果表明，教育（初中及以下： = -0.56，95%置信区间[-1.01 至-0.11]）和职业（其他. 专业人员： = 2.16，95%置信区间[0.62-3.70]）与测量和自我报告身高之间的差异有关；职业（工商服务. 专业人员： = 1.57，95%置信区间[0.52-2.61]）与测量和自我报告体重之间的差异有关；性别（女性. 男性： = -1.74，95%置信区间[-2.51 至-0.97]）和年龄（60-. 18-44： = -1.62，95%置信区间[-2.88 至-0.36]）与测量和自我报告 WC 之间的差异有关。
在中国贫困农村地区，自我报告的身高和体重数据是可靠的，但自我报告的 WC 数据应谨慎使用。为了提高自我报告数据的准确性，应针对某些亚组进行教育干预。
