Table 3.

Mean fitness percentile at baseline and mean change in fitness percentile by school neighborhood recreational resources for NYC public school students enrolled in grades 6–8 and included in the analysis, 2006–2011

	Girls (N = 47,856)					Boys (N = 47,141)
	N	Grade 6 score		Annual fitness changea		N	Grade 6 score		Annual fitness change
		Mean	SE	Mean	SE		Mean	SE	Mean	SE
Overall recreational density
High	11,504	−0.092	0.061	0.033	0.005	11,338	−0.100	0.056	0.068	0.005
Middle	15,309	−0.032	0.062	0.040	0.005	15,337	−0.021	0.057	0.079	0.005
Low	21,043	0.056	0.045	0.025	0.003	20,466	0.033	0.041	0.057	0.003
P valueb		0.075		0.006			0.083		<0.0001
Parks
High	12,311	0.010	0.062	0.023	0.005	12,513	0.005	0.056	0.057	0.005
Middle	12,428	−0.085	0.062	0.055	0.005	12,024	−0.088	0.056	0.087	0.005
Low	23,117	−0.003	0.045	0.022	0.003	22,604	−0.012	0.040	0.059	0.003
P value		0.266		<.0001			0.220		<0.0001
Playgrounds
High	11,041	−0.060	0.063	0.030	0.005	10,711	−0.078	0.057	0.088	0.006
Middle	17,722	−0.033	0.061	0.030	0.005	18,400	−0.033	0.056	0.000	0.005
Low	19,093	0.023	0.046	0.033	0.003	18,030	0.017	0.042	0.069	0.003
P value		0.408		0.760			0.269		<0.0001
Sports facilities
High	11,964	0.004	0.005	0.036	0.005	11,703	−0.140	0.055	0.075	0.005
Middle	15,712	−0.002	0.005	0.031	0.005	16,107	0.076	0.056	0.050	0.005
Low	20,180	−0.003	0.045	0.029	0.003	19,331	−0.020	0.041	0.076	0.003
P value		0.012		0.406			0.002		<0.0001

SE standard error

^aThe average annual change in composite fitness score between the sixth and eighth grade, adjusted for race/ethnicity and student household poverty

^b P value calculated using the F test