Table 1.

Participants’ characteristics.

Socio-Demographic Data		n	%
Age (years old)	Under 13	3	0.42
	13	182	25.74
	14	189	26.74
	15	247	34.94
	16	85	12.02
	Over 16	1	0.14
Gender	Female	282	39.89
	Male	425	60.11
BMI (kg·m−2)	<18.5	232	32.81
	18.5–24.99	420	59.41
	>24.99	23	3.25
	No data	32	4.53
Place of residence	City	625	88.40
	Village	82	11.60
Practising sports	Yes	687	97.17
	No	20	2.83
Frequency of practising sports	Daily	474	69.00
	2–3/week	41	5.97
	1/week	166	24.16
	less often than 1/week	6	0.87
Sports discipline	football	218	30.83
	basketball	165	23.34
	volleyball	148	20.93
	swimming	109	15.42
	other	67	9.48