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Table 3 BMI categories before the escape, upon and since arrival to Germany, stratified by sex and age group (N = 326)

From: Body mass index and associated factors among refugees living in North Rhine-Westphalia, Germany: a cross-sectional study

  Age group p-value
18–24 25–29 30–39 40+
n % n % n % n %
BMI before escape
 Overall          < 0.001
  Underweight 8 11.4 2 3.3 0 0.0 0 0.0
  Normal weight 40 57.1 28 45.9 24 30.8 20 31.8
  Pre-obesity (overweight) 18 25.7 22 36.1 36 46.2 30 47.6
  Obesity class I/II/III 4 5.7 9 14.8 18 23.1 13 20.6
 Men          0.001
  Underweight 2 3.7 2 4.0 0 0.0 0 0.0
  Normal weight 36 66.7 27 54.0 15 27.8 15 33.3
  Pre-obesity (overweight) 14 25.1 15 30.0 28 51.9 22 48.9
  Obesity class I/II/III 2 3.7 6 12.0 11 20.4 8 17.8
 Women          0.002
  Underweight 6 37.5 0 0.0 0 0.0 0 0.0
  Normal weight 4 25.0 1 9.1 9 37.5 5 27.8
  Pre-obesity (overweight) 4 25.0 7 63.6 8 33.3 8 44.4
  Obesity class I/II/III 2 12.5 3 27.3 7 29.2 5 27.8
BMI upon arrival
Overall          < 0.001
  Underweight 10 13.7 2 3.0 0 0.0 0 0.0
  Normal weight 48 65.8 32 48.5 37 43.5 30 44.1
  Pre-obesity (overweight) 11 15.1 25 37.9 36 42.4 26 38.2
  Obesity class I/II/III 4 5.5 7 10.6 12 14.1 12 17.7
Men          < 0.001
  Underweight 4 7.0 2 3.8 0 0.0 0 0.0
  Normal weight 43 75.4 30 56.6 25 43.1 18 38.3
  Pre-obesity (overweight) 7 12.3 16 30.2 27 46.6 20 42.6
  Obesity class I/II/III 3 5.3 5 9.4 6 10.3 9 19.2
Women          < 0.001
  Underweight 6 37.5 0 0.0 0 0.0 0 0.0
  Normal weight 5 31.3 2 15.4 12 44.4 12 57.1
  Pre-obesity (overweight) 4 25.0 9 69.2 9 33.3 6 28.6
  Obesity class I/II/III 1 6.3 2 15.4 6 22.2 3 14.3
BMI since arrival
Overall          < 0.001
  Underweight 9 11.3 1 1.4 0 0.0 0 0.0
  Normal weight 50 62.5 30 42.9 26 29.6 25 33.8
  Pre-obesity (overweight) 17 21.3 28 40.0 44 50.0 32 43.2
  Obesity class I/II/III 4 5.0 11 15.7 18 20.5 17 23.0
Men          < 0.001
  Underweight 6 9.4 1 1.8 0 0.0 0 0.0
  Normal weight 43 67.2 29 51.8 20 32.8 17 34.7
  Pre-obesity (overweight) 14 21.1 20 35.7 33 54.1 23 46.9
  Obesity class I/II/III 1 1.6 6 10.7 8 13.1 9 18.4
Women          0.014
  Underweight 3 18.8 0 0.0 0 0.0 0 0.0
  Normal weight 7 43.8 1 7.1 6 22.2 8 32.0
  Pre-obesity (overweight) 3 18.8 8 57.1 11 40.7 9 36.0
  Obesity class I/II/III 3 18.8 5 35.7 10 37.0 8 32.0
  1. n: quantity; %: proportion