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Table 2 Vitamin D metabolite level at baseline and day 3 after enrollment

From: Trying to identify who may benefit most from future vitamin D intervention trials: a post hoc analysis from the VITDAL-ICU study excluding the early deaths

Vitamin D metabolite

Survivors at 28 days

Mean (CI 95%)

Non-survivors at 28 days

Mean (CI 95%)

p value

Vitamin D supplementation group, day 0

 25-Hydroxyvitamin D, ng/ml

12.9 (12.2–13.6)

13.0 (11.3–14.7)

0.869

 1,25-Dihydroxyvitamin D, pg/ml

44.3 (37.1–51.4)

38.3 (21.9–54.7)

0.527

Placebo group, day 0

 25-Hydroxyvitamin D, ng/ml

13.6 (12.9–14.4)

12.9 (11.6–14.4)

0.382

 1,25-Dihydroxyvitamin D, pg/ml

42.9 (36.3–49.4)

34.6 (25.9–43.3)

0.133

Vitamin D supplementation group, day 3

 25-Hydroxyvitamin D, ng/ml

34.4 (31.7–37.2)

25.4 (20.2–30.6)

0.010

 1,25-Dihydroxyvitamin D, pg/ml

107.6 (92.7–122.6)

70.3 (36.0–104.7)

0.056

Placebo group, day 3

 25-Hydroxyvitamin D, ng/ml

13.9 (13.2–14.7)

13.9 (12.1–15.7)

0.948

 1,25-Dihydroxyvitamin D, pg/ml

50.7 (42.2–59.2)

37.4 (26.5–48.4)

0.059