Dynamics of vitamin D in patients with mild or inactive inflammatory bowel disease and their families

Nutrition Journal

Table 4 Serum 25[OH] vitamin D according to intakes of vitamin D

Item	IBD Patients	Patients’ Family N = 55	Controls	Controls’ Family N = 48
Item	N = 55	Patients’ Family N = 55	N = 48	Controls’ Family N = 48
25(OH)D levels in Supplement users, n	26	19	22	14
Mean ± SD	79.8 ± 36.5*	86.7 ± 24.1	70.2 ± 26.5	74.6 ± 15.9
25(OH)D levels in non Supplement users, n	21	32	22	31
Mean ± SD	59.4 ± 25.0	79.9 ± 39.6	67.9 ± 26.1	68.2 ± 31.8
Seasons:
May-Sept, n	23	27	19	21
Mean ± SD	81.6 ± 32.5 **	83.7 ± 32.1	69.5 ± 26.3	73.3 ± 30.9
Oct-April, n	27	25	26	25
Mean ± SD	62.4 ± 31.0	80.8 ± 36.9	67.4 ± 26.6	67.1 ± 24.7

The effects of vitamin D intake on 25[OH] vitamin D with or without supplement or seasons of testing are shown for four groups. All serum 25[OH] vitamin D levels are reported as nmol/L. May –Sept are sunny months, October –April are non sunny months. N values for each group represents original number in the groups and n values actual numbers analyzed.
* The comparison of means ± SD was significant (p = 0.03 compared with patients not taking vitamin D supplements). However comparing log 25[OH] vitamin D the result became nonsignifcant (p = 0.059).
** p = 0.039 compared with patients evaluated in October to April.

ISSN: 1475-2891