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Table 1 Baseline characteristics of participants

From: Long-term follow-up on biological risk factors, adiposity, and cardiorespiratory fitness development in a physical education intervention: a natural experiment (CHAMPS-study DK)

  N Intervention n Control p-value for between school-type difference
Age (years) 217 7.8 (1.3) 95 7.8 (1.3) 0.98
Sex (% girls) 217 56 95 44 0.06
Stature (cm) 216 129.2 (8.8) 92 128.8 (9.7) 0.71
Body weight (kg) 217 26.8 (5.4) 92 26.9 (5.9) 0.94
Sexual maturity (% tanner stage 1) 217 75 95 79 0.38
Mothers educational attainment (% any tertiary) 210 65 92 58 0.24
Family history of NCDs (% yes) 211 50 92 53 0.58
Birthweight (gram) 298 3495 (711) 91 3481 (550) 0.87
Composite score (z-scores) 200 -0.07 (0.97) 89 0.17 (1.05) 0.06
Cardiorespiratory fitness (meters) 203 887 (101) 91 885 (107) 0.84
Systolic blood pressure (mmHg) 214 100.1 (6.5) 90 98.3 (8.2) 0.04
Waist-circumference (cm)a 217 55.0 (52.5–58) 92 56.5 (53–61.3) 0.08
HOMA-IRa 217 0.54 (0.37–0.75) 95 0.65 (0.47–0.89) 0.004
Triglyceride (mmol/l)a 217 0.58 (0.46–0.71) 95 0.56 (0.47–0.71) 0.79
TC:HDL-c-ratioa 217 2.6 (2.3–3.0) 95 2.6 (2.4–3.0) 0.51
  1. Mean (standard deviation) is given unless otherwise noted
  2. aMedian (25th–75th centile). NCD non-communicable diseases, HOMA-IR homeostasis model assessment of insulin resistance, TC total cholesterol, HDL-c High-density lipoprotein cholesterol