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Table 2 Anthropometric measurements by age and school location of 1989 pupils from Ho Chi Minh City

From: High prevalence of overweight among adolescents in Ho Chi Minh City, Vietnam

Characteristics ≤ 11 yrs 12 yrs 13 yrs ≥ 14 yrs Total
   ( x ¯ ± SD) ( x ¯ ± SD) ( x ¯ ± SD) ( x ¯ ± SD)  
n Wealthy districts (n*) 261 (7) 328 (5) 454 (12) 236 (6) 1279 (30)
Less wealthy districts (n*) 122 (5) 200 (12) 204 (8) 184 (6) 710 (31)
Boys (%) Wealthy districts 50.2 40.2 47.6 48.3 45.8
Less wealthy districts 50.8 47.5 53.9 51.1 50.8
Weight (kg) Wealthy districts 42 ± 10 46 ± 10 50 ± 10 51 ± 12 47 ± 11
Less wealthy districts 39 ± 9 43 ± 9 46 ± 10 48 ± 9 45 ± 10
Height (cm) Wealthy districts 146 ± 7 152 ± 7 156 ± 7 158 ± 8 153 ± 8
Less wealthy districts 144 ± 7 151 ± 7 155 ± 7 158 ± 8 153 ± 9
BMI Wealthy districts 19.5 ± 3.6 19.7 ± 3.2 20.3 ± 3.6 20.0 ± 3.5 19.9 ± 3.5
(kg/m 2 ) Less wealthy districts 18.5 ± 3.4 18.9 ± 3.1 19.2 ± 3.2 19.2 ± 3.0 19.0 ± 3.1
BMI z-score Wealthy districts 0.56 ± 1.32 0.39 ± 1.16 0.28 ± 1.25 −0.11 ± 1.20 0.30 ± 1.25
  Less wealthy districts 0.15 ± 1.38 0.09 ± 1.23 0.12 ± 1.23 −0.41 ± 1.14 −0.09 ± 1.25
  1. BMI z-score: z-score based on WHO 2007 reference values[17]. n*: number of missing data.