TABLE 2.

Pearson correlation coefficients between individual participants’ 25(OH)D concentrations obtained in each of the study years¹

	Year 11 (n = 99)	Year 13 (n = 82)	Year 15 (n = 76)	Year 17 (n = 90)	Year 20 (n = 76)
Year 11 (n = 99)
r		0.706	−0.087	−0.052	−0.151
P		<0.0001	0.6	0.7	0.4
Year 13 (n = 82)
r	0.706		0.079	0.011	−0.004
P	<0.0001		0.6	0.1	0.8
Year 15 (n = 76)
r	−0.087	0.079		0.733	0.649
P	0.6	0.6		0.0001	<0.0001
Year 17 (n = 90)
r	−0.052	0.011	0.733		0.701
P	0.7	0.1	<0.0001		<0.0001
Year 20 (n = 76)
r	−0.151	−0.004	0.649	0.701
P	0.3	0.9	<0.0001	<0.0001

¹25(OH)D, 25-hydroxyvitamin D.