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Table 1 Sample characteristics by number of life events experienced during childhood

From: The experience of life events and body composition in middle childhood: a population-based study

   Number of life events (0–10 years)
Child characteristics Total
(n = 5333)
0–2 events
(n = 1443)
3–5 events
(n = 2438)
6 or more events
(n = 1452)
p-value
Age at 10 years visit, mean (SD) 9.78 (0.33) 9.75 (0.30) 9.78 (0.32) 9.83 (0.39)  < 0.001
Sex, % girl 50.8 51.1 50.9 50.3 0.91
Ethnicity, % Dutch 61.6 62.7 63.5 57.2 0.001
 % Other western 9.0 9.5 8.7 9.0  
 % Non-western 29.4 27.8 27.8 33.8  
Birth weight for gestational age SD score -0.07 (1.02) -0.04 (0.99) -0.05 (1.01) -0.14 (1.06) 0.009
BMI at 10 years visit, mean (SD) 17.54 (2.73) 17.32 (2.63) 17.49 (2.63) 17.85 (2.97)  < 0.001
FMI at 10 years visit, mean (SD) 4.85 (2.07) 4.71 (2.00) 4.80 (2.00) 5.07 (2.23)  < 0.001
FFMI at 10 years visit, mean (SD) 12.59 (1.09) 12.52 (1.06) 12.59 (1.06) 12.66 (1.16) 0.002
Family characteristics
 Maternal educational level, % low 18.4 15.2 16.2 25.4  < 0.001
  % medium 30.6 26.4 28.8 37.8  
  % high 51.0 58.4 55.0 36.8  
 Paternal educational level, % low 18.7 16.0 15.8 26.8  < 0.001
  % medium 26.6 23.5 26.0 31.0  
  % high 54.8 60.4 58.2 42.2  
 Household income, % low (< 1600 per month) 13.8 8.9 11.9 22.6  < 0.001
  % medium (1600–4000 per month) 50.1 48.2 48.2 55.6  
  % high (> 4000 per month) 36.1 42.9 40.0 21.8  
 Maternal BMI, median [IQR] 23.71 [4.85] 23.38 [4.49] 23.67 [4.54] 24.03 [5.28]  < 0.001
 Paternal BMI, median [IQR] 24.93 [4.17] 24.93 [4.29] 24.92 [4.05] 25.00 [4.31] 0.674
 Maternal psychiatric symptoms (prenatal assessment), median [IQR] 0.15 [0.25] 0.12 [0.19] 0.14 [0.22] 0.21 [0.37]  < 0.001
 Paternal psychiatric symptoms (prenatal assessment), median [IQR] 0.06 [0.15] 0.05 [0.14] 0.06 [0.13] 1.00 [0.19]  < 0.001
  1. Based on original data