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Table 4 Specificity and predictive value negative (PVN) of overweight or obesity defined as body mass index >= 25 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 89 85 82
  PVN 90 89 74
60+y Specificity 93 86 89
  PVN 77 84 69
Women     
20–59y Specificity 97 94 93
  PVN 91 83 64
60+y Specificity 98 91 91
  PVN 78 63 51
N   6846 4431 3748
  1. EA, Non-Hispanic European American, AA, Non-Hispanic African American, MA, Mexican American