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Table 1 Demographic and anthropometric characteristics of the schoolchildren, cases and controls

From: Food habits, physical activities and sedentary lifestyles of eutrophic and obese school children: a case–control study

Characteristics All Obese Normal-weight p-valuea
Mean ± SD Mean ± SD Mean ± SD
n 402 202 200  
Age (y) 9.4 ± 1.8 9.5 ± 1.7 9.4 ± 1.8 0.48
Female (%) 44.8 43.1 46.5 0.49
Weight (kg) 38.9 ± 13.4 48 ± 11.9 29.8 ± 7.2 <0.001
Height (cm) 136.3 ± 12.1 139.0 ± 11.4 133.6 ± 12.1 <0.001
BMI (kg/m2) 20.4 ± 4.5 24.4 ± 2.6 16.4 ± 1.3 <0.001
BMI (percentile) 72.1 ± 28.3 97.3 ± 1.3 46.5 ± 17.7 <0.001
WC (cm) 68.2 ± 12.5 78.5 ± 8.7 57.8 ± 4.9 < 0.001
Public school (%) 23.6 24.8 22.5 0.59
  1. aStudent’s t-test and Pearson’s χ2 test. BMI, body mass index; WC, waist circumference.