Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Galicia, Spain.
Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Galicia, Spain; Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela-IDIS), Santiago de Compostela, Galicia, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER de Epidemiología y Salud Pública-CIBERESP), Madrid, Spain.
Public Health. 2024 Apr;229:160-166. doi: 10.1016/j.puhe.2024.02.007. Epub 2024 Mar 5.
Previous studies suggest that there is discordance between actual weight status and body-weight perception. This fact has implications when it comes to designing public health interventions. The aim of this study was to estimate the prevalence of the different categories of weight status and body-weight perception and to analyse their concordance in a representative Spanish population sample.
Cross-sectional study.
Data were sourced from the 2018 Galician Risk Behaviour Data System, with the target population being all persons aged 16 years and above. We collected data on self-perceived body weight and assessed weight status on the basis of body mass index (BMI). BMI was estimated using self-reported measures of weight and height. To estimate concordance, Cohen's kappa coefficient, both unweighted and weighted with Cicchetti weights, was calculated.
Data were obtained for 7853 individuals aged 16 years and above, whereas the overall unweighted concordance was 0.393 (95%CI: 0.377-0.409), with an agreement percentage of 61.6%, weighted concordance was 0.503 (0.490-0.517), with an agreement percentage of 86.6%. The highest concordance between self-perceived body weight and weight status was observed in women. By age group, the highest concordance was observed in the youngest group (16-24 years) for the BMI categories of underweight and overweight, and in the 45-64 age group for the category of obesity.
The results highlight the existence of differences between self-perceived body weight and weight status, according to sex and age.
先前的研究表明，实际体重状况与体重感知之间存在差异。这一事实在设计公共卫生干预措施时具有重要意义。本研究旨在估计不同体重状况和体重感知类别的流行率，并分析其在代表性西班牙人群样本中的一致性。
横断面研究。
数据来源于 2018 年加利西亚风险行为数据系统，目标人群为所有 16 岁及以上的人。我们收集了自我感知体重的数据，并根据体重指数（BMI）评估了体重状况。BMI 是通过自我报告的体重和身高数据来估算的。为了估计一致性，计算了科恩氏kappa 系数，包括未加权和加权的 Cichetti 权重。
共获得了 7853 名 16 岁及以上的个体数据，总体未加权一致性为 0.393（95%置信区间：0.377-0.409），一致性百分比为 61.6%，加权一致性为 0.503（0.490-0.517），一致性百分比为 86.6%。在女性中，自我感知体重与体重状况之间的一致性最高。按年龄组划分，在最年轻的年龄组（16-24 岁）中，体重过轻和超重的 BMI 类别以及 45-64 岁年龄组的肥胖类别中，一致性最高。
结果突出了根据性别和年龄，自我感知体重与体重状况之间存在差异。
