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Table 1 Descriptive socio-demographic characteristics of the study sample at baseline (n = 637)

From: Promotion of a healthy lifestyle among 5-year-old overweight children: health behavior outcomes of the 'Be active, eat right’ study

  Total sample (n = 637) Intervention condition (n = 349) Control condition (n = 288) p-value*
Child characteristics
Age, months (SD) [n = 0 missing] 69.09 (5.18) 68.65 (4.98) 69.64 (5.37) 0.016
Sex, % boys [n = 0 missing] 38.1 38.7 37.5 0.412
Ethnic background, % Dutch [n = 11 missing] 78.0 75.8 80.6 0.091
BMI SDS (SD)§ [n = 0 missing] 1.90 (0.37) 1.93 (0.38) 1.88 (0.35) 0.087
Parental characteristics
Mothers
Age, years (SD) [n = 81 missing] 35.85 (4.29) 35.80 (4.23) 35.92 (4.37) 0.741
Country of birth, % the Netherlands [n = 4 missing] 83.1 82.4 84.0 0.335
Education level, % [n = 6 missing]     
  Low 7.3 7.8 6.6 0.238
  Low to mid-low 26.0 27.0 24.8 0.086
  Mid-high to high 44.7 40.0 50.3 0.721
  High 22.0 25.2 18.2 0.003
BMI, % overweight [n = 51 missing] 44.0 44.5 43.4 0.422
Fathers
Age, years (SD) [n = 562 missing] 40.19 (7.35) 40.60 (7.87) 39.71 (6.78) 0.606
Country of birth, % the Netherlands [n = 9 missing] 83.6 80.8 87.0 0.022
Education level, % [n = 18 missing]
  Low 5.3 4.5 6.4 0.602
  Low to mid-low 26.0 25.3 26.9 0.478
  Mid-high to high 42.5 42.6 42.4 0.156
  High 26.2 27.7 24.4 0.059
BMI, % overweight [n = 252 missing] 66.5 66.3 66.7 0.514
  1. *p-value from t-test for continuous variables evaluating the differences in means between intervention and control condition. P-value from Chi-square test for categorical values, evaluating the differences between frequencies between intervention and control condition.
  2. §BMI SDS: reference data from the 2009 Dutch National Growth Study.
  3. Note: Bold printed p-values indicate statistically significant difference between intervention and control condition.