Extent and determinants of discrepancy between self-evaluations of weight status and clinical standards.

Abstract:

OBJECTIVES:To examine the extent and type of discordance between personal and medical classifications of weight status, and to examine the influence of sociodemographic factors on the misclassification of weight status. DESIGN/SETTING:The 1991 Health Promotion and Disease Prevention Supplement of the National Health Interview Survey, a nationally representative, cross-sectional survey of the U.S. population. PARTICIPANTS:Adults 18 years and older (N = 41,676). MEASUREMENTS AND MAIN RESULTS:Respondents' self-evaluations of weight status were compared to classification of their body mass index (BMI) by medical standards. Twenty-nine percent of respondents incorrectly classified their weight status relative to medical standards, and the nature of this error was variable. While 27.4% of overweight persons judged their weight to be "just about right," of those who did judge themselves to be overweight, 23.9% were in fact normal or underweight according to their BMI. Overall, 16.6% of persons underassessed their weight category, and 12.4% overassessed their weight category. Multivariate analysis revealed that sex, age, race, income, education, and occupation influenced the misclassification of weight status. CONCLUSIONS:A substantial proportion of Americans deviate from medical standards in their self-evaluations of weight appropriateness, and this lack of correspondence may reflect the normative judgments of various population subgroups. Clinical and public health programs that employ a uniform strategy or approach to the population may not be efficacious.

journal_name

J Gen Intern Med

authors

Chang VW,Christakis NA

doi

10.1046/j.1525-1497.2001.016008538.x

subject

Has Abstract

pub_date

2001-08-01 00:00:00

pages

538-43

issue

8

eissn

0884-8734

issn

1525-1497

pii

jgi01104

journal_volume

16

pub_type

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