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Table 1 Characteristics of boys by waist-to-height ratio

From: Eating quickly is associated with waist-to-height ratio among Japanese adolescents: a cross-sectional survey

Variables Waist-to-height ratio P-value a
<0.5 (n =878) ≥0.5 (n =92)
Age (years) 12.0 (12.0, 13.0) 12.0 (12.0, 13.0) 0.165
Height (cm) 154.7 (148.4, 160.0) 156.1 (151.3, 161.4) 0.063
Weight (kg) 42.5 (37.4, 47.8) 60.3 (55.1, 70.0) <0.001
Body mass index (kg/m2) 17.7 (16.5, 19.1) 25.1 (23.1, 27.4) <0.001
Waist circumference (cm) 62.6 (59.5, 66.3) 84.9 (79.6, 91.9) <0.001
Waist-to-height ratio 0.40 (0.39, 0.43) 0.54 (0.51, 0.58) <0.001
Exercise, n (%)    
 Daily 759 (86.5) 67 (72.8) 0.001
 Sometimes 58 (6.6) 10 (10.9)  
 None 61 (7.0) 15 (16.3)  
Skipping breakfast, n (%)    
 Yes 41 (4.7) 3 (3.3) 0.791
 No 837 (95.3) 89 (96.7)  
Snack after dinner, n (%)    
 Always or sometimes 486 (55.4) 3 (3.3) 0.434
 Seldom or none 392 (44.7) 89 (96.7)  
Eating quickly, n (%)    
 Yes 218 (24.8) 37 (40.2) 0.001
 No 660 (75.2) 55 (59.8)  
Eating until full, n (%)    
 Yes 461 (52.5) 54 (58.7) 0.258
 No 417 (47.5) 38 (41.3)  
  1. Except where indicated n (%), values are median (25, 75th percentile)
  2. a Wilcoxon rank-sum test, chi-squared test, or Fisher's exact test