Table 4.

Inference of the type of physical practice in accordance with the school grade and gender

	Variables	n	Gender (%)		School grade (%)
			Boys	Girls	6th	8th	10th
Physical activityy	Not practicing	219	36,5*	63,5*	18,7*	33,8	47,5*
	less than 3 days/week.	1638	33*	67*	28,1*	36,3	35,6*
	3 to 5 days/week.	2010	54*	46*	29,4*	36,8	33,8
	6 or more days/week	920	71,6*	28,4*	44,3*	32,3*	23,4*
Sports	1 time or less/month	816	23,5*	76,5*	20*	33,1	46,9*
	1 to 3 days/week.	2245	44,9*	55,1*	29*	36,9	34,1
	More than 3 days/week.	1700	67,8*	32,2*	40,1*	35,5	24,4*
	Indoor sports	2080	45,8*	54,2*	38,1*	37,6*	24,3*
	Outdoor sports	2444	67,7*	32,3*	37,8*	38*	24,2*

*χ²; p < .005;