Table 1

Descriptive characteristics of 457 participants included in the final analyses
Demographic characteristics All N = 457 Boys N = 218 Girls N = 262 p
Age (years) Mean (SD) 14.3 (0.3) 14.3 (0.3) 14.3 (0.3) 0.11
BMI Z-score (kg · m-2) Mean (SD) 0.37 (1.2) 0.29 (1.19) 0.43 (1.22) 0.25
Weight status N (% overweight / obese) 96 (21.0) 38 (18.3) 58 (23.3) 0.19
Parent education N (%) 0.04
Low 179 (39.2) 71 (34.1) 108 (43.4)
High 278 (60.8) 137 (65.9) 141 (56.6)
Objective physical activity All N = 410 Boys N = 192 Girls N = 218 p
MVPA (min · d-1) Mean (SD) 62.8 (24.7) 67.3 (25.6) 58.8 (23.2) <0.001
Meeting PA Guidelines N (% meeting guideline) 248 (54.3) 126 (60.6) 122 (49.0) 0.013

Students T-test of chi-squared tests used to assess sex differences.

MVPA moderate and vigorous physical activity.

Meeting PA Guidelines defined as ≥ 60 minutes per day of MVPA (≥2000 accelerometry counts per minute).

Corder et al.

Corder et al. BMC Public Health 2013 13:718   doi:10.1186/1471-2458-13-718

Open Data