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

Table 1 Baseline characteristics of participants

	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-IR^a	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-ratio^a	217	2.6 (2.3–3.0)	95	2.6 (2.4–3.0)	0.51

Mean (standard deviation) is given unless otherwise noted
^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

ISSN: 1471-2458