Table 3.

Percent of Boys and Girls in the 5^th to 7^th Grade Cohort Reporting Social Contexts for Common Physical Activities during Past 5 Days

	% of boys reporting “with whom”
	5th grade					7th grade					P*
Physical activities	n	Alone	1 other	Several	Class/team	n	Alone	1 other	Several	Class/team
Calisthenics/Exercise	208	48.6	22.1	16.8	11.5	94	40.4	19.2	13.8	26.6	.05
Running, jogging	187	31.0	31.0	30.5	7.5	78	28.2	23.1	21.8	26.9	.05
Basketball	181	10.5	22.1	47.0	20.4	105	5.7	12.4	47.6	34.	.05
Football	176	4.6	15.9	47.7	31.8	96	2.1	7.3	47.9	42.7	.02
Playing with younger children	124	20.2	29.8	47.6	2.4	65	16.9	29.2	50.8	3.1	.43
Playing catch	123	6.5	39.8	43.1	10.6	59	1.7	33.9	45.8	18.6	.03
	% of girls reporting “with whom”
	5th Grade					7th Grade
Physical activities	n	Alone	1 other	Several	Class/team	n	Alone	1 other	Several	Class/team	p*
Calisthenics/Exercise	251	29.5	33.8	22.1	13.6	105	21.0	21.0	20.0	38.1	.05
Running, jogging	235	20.4	37.5	35.3	6.8	99	20.0	32.3	26.3	21.2	.11
Basketball	142	11.3	29.6	44.4	14.8	57	0.0	17.5	61.4	21.1	.05
Playing with younger children	257	17.1	35.0	45.9	2.0	150	19.3	38.0	42.0	.7	.28
Dancing (home, class, school)	246	26.4	20.7	41.5	11.4	133	24.1	14.3	46.6	15.0	.10
Walking for exercise	207	22.7	40.6	34.8	1.9	89	21.4	39.3	34.8	4.5	.67

Note. Highlighted areas indicate ≥ 20% prevalence in sample

^*p value for multinomial test for change over time