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. Author manuscript; available in PMC: 2014 Aug 1.

Published in final edited form as: Med Sci Sports Exerc. 2013 Aug;45(8):1508–1514. doi: 10.1249/MSS.0b013e31828b2f3a

Table 2.

Spearman correlation coefficients for closed cohort.

a. MVPA (min).
	Girls						Boys

Age (yr)	5	9	11	13	15	Age (yr)	5	9	11	13	15
5		0.39^**	0.29^**	0.21^*	0.27^*	5		0.35^**	0.32^**	0.36^**	0.02
9			0.46^**	0.31^**	0.22^*	9			0.52^**	0.34^**	0.08
11				0.54^**	0.28^**	11				0.50^**	0.28^*
13					0.27^*	13					0.33^**
15						15

b. Vigorous PA (min).
	Girls						Boys

Age (yr)	5	9	11	13	15	Age (yr)	5	9	11	13	15
5		0.26^*	0.22^*	0.16	0.23^*	5		0.38^**	0.30^**	0.25^*	−0.03
9			0.29^**	0.12	0.09	9			0.55^**	0.31^**	0.10
11				0.40^**	0.25^*	11				0.48^**	0.25^*
13					0.31^**	13					0.35^**
15						15

c. PA Sum (counts).
	Girls						Boys

Age (yr)	5	9	11	13	15	Age (yr)	5	9	11	13	15
5		0.42^**	0.36^**	0.26^*	0.24^*	5		0.34^**	0.24^*	0.28^*	0.02
9			0.47^**	0.31^**	0.24^*	9			0.45^**	0.28^*	0.08
11				0.55^**	0.31^**	11				0.40^**	0.20^*
13					0.39^**	13					0.36^**
15						15

^*

p-value < 0.05;

^**

p-value < 0.01