Table 4.

Mean ± standard deviation referring to the comparisons of 25(OH)D according to the origin of the sample and season of the year

Season of the year
		Winter/Spring		Summer/Fall
Origin	n	25(OH)D (nmol/L)	n	25(OH)D (nmol/L)
NH	111	36.1 ± 21.2	66	42.1 ± 25.9
CD	158	44.1 ± 24.0	85	59.1 ± 29.6 t
PA£	99	78.9 ± 30.9 a b	88	91.6 ± 31.7 t a b
Young	35	69.3 ± 25.6 a b	37	103.6 ± 29.3 t a b

^£ paired analysis.

^t significant difference (p < 0.01) within each origin, considering the season of the year.

^a significant difference (p < 0.05) within each season of the year in relation to NURSING.

^b significant difference (p < 0.05) within each season of the year in relation to COMMUNITY.