Table 2. Sample characteristics and descriptive statistics.

Demographic variables	mean ± SD or percentages
Age (years)	16.02 ± 0.98
Technical education	53.3%
Vocational education	46.7%
Physical activity variables	mean ± SD
Total physical activity (mins/day)	55.83 ± 31.83
Peer variables	mean ± SD
Peer modeling (range 1–5)	2.90 ± 0.92
Peer co-participation (range 1–5)	2.47 ± 1.13
Peer encouragement (range 1–5)	2.29 ± 1.26
Parental variables	mean ± SD
Parental modeling (range 1–5)	2.55 ± 1.13
Parental co-participation (range 1–5)	1.79 ± 0.95
Parental encouragement (range 1–5)	2.85 ± 1.35
Personal variables	mean ± SD
Self-efficacy to be physically active (range 1–5)	3.06 ± 1.22
Perceived benefit of health (range 1–5)	4.45 ± 0.90
Perceived benefit of being around friends or meeting new people (range 1–5)	3.76 ± 1.19
Perceived benefit of fun (range 1–5)	3.82 ± 1.22
Perceived benefit of being better than others (range 1–5)	2.33 ± 1.38
Perceived benefit of not feeling bored (range 1–5)	3.60 ± 1.34
Perceived benefit of body image (range 1–5)	4.03 ± 1.25
Perceived barrier of lack of time (range 1–5)	2.99 ± 1.43
Perceived barrier of not liking PA (range 1–5)	2.59 ± 1.54
Perceived barrier of not being good at PA (range 1–5)	2.39 ± 1.43
Perceived barrier of lack of transportation to physical activities (range 1–5)	2.55 ± 1.43
Perceived barrier of not being allowed to do physical activities (range 1–5)	1.81 ± 1.27

SD, standard error; mins, minutes; PA, physical activity