Table 2.

Impact of the season of VitD repletion on serum 25(OH)D concentrations at baseline, repletion-end and post-repletion

Repletion season	n	Baseline	Repletion-end	Increment/month	Post-repletion	Fall/month
Summer	19	24.6 ± 3.9	80.9 ± 4.0	+9.4 ± 0.9	42.4 ± 4.4	−3.2 ± 0.3
Autumn	19	21.1 ± 1.8	64.1 ± 3.0	+7.2 ± 0.6	34.6 ± 3.4	−2.5 ± 0.4
		P = 0.40	P = 0.002	P = 0.03	P = 0.16	P = 0.18
Winter	17	15.7 ± 2.3	48.9 ± 3.0	+5.5 ± 0.4	31.9 ± 5.6	−1.4 ± 0.5
		P = 0.09	P < 0.001	P = 0.001	P = 0.15	P = 0.006
Spring	20	21.6 ± 2.7	63.75 ± 2.5	+7.0 ± 0.6	32.3 ± 2.6	−2.6 ± 0.2
		P = 0.52	P < 0.001	P = 0.03	P = 0.05	P = 0.15

All values units are nmol/L and represented as means ± SEM. P-values represent unpaired Student’s t-test comparing season with summer repletion.