Table 2

Serum 25(OH)D categories at baseline and delivery, by supplementation group
Placebo1 Vitamin D1 p2
Maternal Baseline (n = 80) (n = 80)
   <30 nmol/L 21 (26.3) 18 (22.5) 0.88
   30 – 49 nmol/L 32 (40.0) 32 (40.0)
   50 – 79 nmol/L 21 (26.3) 25 (31.3)
   > = 80 nmol/L 6 (7.5) 5 (6.3)
Maternal Delivery (n = 63) (n = 67)
   <30 nmol/L 23 (35.9) 0 (0) <0.001
   30 – 49 nmol/L 27 (42.2) 0 (0)
   50 – 79 nmol/L 10 (15.9) 2 (3.0)
   > = 80 nmol/L 3 (4.8) 65 (97.0)
Cord blood (n = 67) (n = 65)
   <30 nmol/L 21 (31.3) 1 (1.5) <0.001
   30 – 49 nmol/L 33 (49.3) 2 (3.1)
   50 – 79 nmol/L 9 (13.4) 7 (10.8)
   > = 80 nmol/L 4 (6.0) 55 (84.6)

1 n (%).

2 p-value for Chi-square test or Fischer’s exact test for proportions.

Roth et al.

Roth et al. Nutrition Journal 2013 12:47   doi:10.1186/1475-2891-12-47

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