Table 2.

Serum 25OHD level (nmol/L).

	Controls (n = 295)	Total T1DM (n = 296)	Newly diagnosed T1DM (n = 106)	Established T1DM (n = 190)
Overalla	57.93 ± 19.03	48.69 ± 15.26	50.42 ± 14.74	47.70 ± 15.50
<6 yearsa	56.91 ± 21.56	52.92 ± 13.48	54.27 ± 12.60	51.00 ± 14.67
6–12 yearsa	58.38 ± 18.07	49.40 ± 15.18	48.67 ± 15.10	49.82 ± 15.28
>12 yearsa	58.00 ± 18.36	42.16 ± 15.43	44.35 ± 19.03	41.83 ± 15.01

^aValues are expressed as mean ± s.d. ANOVA was used to compare vitamin D concentrations among subgroups. P < 0.05 was statistically significant.