Table 6.

Specificity and predictive value negative (PVN) of obesity defined as body mass index >= 30 kg/m²) calculated from self-reported height and weight by gender, age, and ethnicity: NHANES III.(weighted)

		Ethnicity
		EA	AA	MA
Men
20–59y	Specificity	99	97	96
	PVN	95	94	94
60+y	Specificity	99	97	96
	PVN	91	91	92
Women
20–59y	Specificity	99	97	98
	PVN	93	88	83
60+y	Specificity	99	96	98
	PVN	90	84	81
N		6846	4431	3748

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