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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)

From: Ethnic variation in validity of classification of overweight and obesity using self-reported weight and height in American women and men: the Third National Health and Nutrition Examination Survey

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