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Table 1 Baseline characteristics of participants in the URMEL-ICE study

From: Cardio-metabolic and socio-environmental correlates of waist-to-height ratio in German primary schoolchildren: a cross-sectional exploration

  Missing Values WHtR ≥0.5 (n = 132) WHtR < 0.5 (n = 621) Total (n = 753)
Boys, n (%)   65 (49.2) 344 (55.4) 409 (54.3)
Age, years [m (sd)]   7.57 (0.42) 7.57 (0.41) 7.57 (0.42)
Migration background, n (%)   66 (50.0)*** 179 (28.8) 245 (32.5)
Parental characteristics
 Maternal smoking during pregnancy, n (%) 9 31 (23.7)** 71 (11.6) 102 (13.7)
 Breastfeeding, n (%) 18 99 (78.0) 500 (82.2) 599 (81.5)
 Single parent, n (%) 5 15 (11.5) 66 (10.7) 81 (10.8)
 At least one parent educated > 10 years, n (%)   41 (31.1)*** 288 (46.4) 329 (43.7)
 At least one parent obese, n (%) 57 38 (30.9)*** 92 (16.1) 130 (18.7)
Children’s lifestyle characteristics
 No breakfast before school, n (%) 10 23 (17.8) 75 (12.2) 98 (13.2)
 Consumption of sweetened drinks > 2/week, n (%) 59 34 (29.6) 143 (24.7) 177 (25.5)
 Screen media ≥1 h/day, n (%) 12 73 (57.0)** 245 (40.0) 318 (42.9)
 Playing outside > 2 times a week, n (%) 16 119 (94.4) 588 (96.2) 707 (95.9)
 Club sports > 2 times a week, n (%) 35 8 (6.5)* 76 (12.8) 84 (11.7)
 Non-club sports > 2 times a week, n (%) 76 29 (25.4) 188 (33.4) 217 (32.1)
  1. m mean, sd standard deviation
  2. *p < 0.05, **p < 0.01, ***p < 0.001