Table 2.

Prevalence (percent) of obesity defined as body mass index >= 30 kg/m²) calculated from self-reported versus measured height and weight by gender, age, and ethnicity: NHANES III.(weighted)

		Ethnicity
		EA	AA	MA
Men
20–59y	Self-report	16.2	18.2	18.5
	Measured	19.4	20.5	20.4
	Difference	-3.2	-2.3	-1.9
60+y	Self-report	15.0	17.1	18.7
	Measured	21.5	22.4	22.2
	Difference	-6.5	-5.3	-3.5
Women
20–59y	Self-report	17.6	30.0	21.6
	Measured	22.1	36.1	33.3
	Difference	-4.5	-6.1	-11.7
60+y	Self-report	16.4	31.2	20.8
	Measured	24.1	40.0	34.4
	Difference	-7.7	-8.8	-13.6
N		6846	4431	3748

EA, Non-Hispanic European American, AA, Non-Hispanic African American, MA, Mexican American WT VOB123003