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Table 2 Classification of underweight, overweight, and obesity according to BMI

From: Estimation of body size and growth patterns in Korean boys

  Body mass index (kg/m 2 )
  Age (years) Total ( N ) Underweight <18.5 Normal range 18.5 to 22.9 Overweight 23.0 to 24.9 Obesity ≥25
Male 13 97 37(38%) 50(52%) 5(5%) 5(5%)
14 108 35(32%) 56(52%) 8(7%) 9(8%)
15 111 25(23%) 63(57%) 9(8%) 14(13%)
16 159 23(14%) 80(50%) 24(15%) 32(20%)
17 199 22(11%) 111(56%) 34(17%) 32(16%)
18 114 14(12%) 58(51%) 17(15%) 25(22%)
  1. Adopt the classification from WHO.