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Table 4 25(OH)D concentrations and depression scores in nulliparous and multiparous subgroups

From: A randomized controlled trial of vitamin D supplementation on perinatal depression: in Iranian pregnant mothers

Variables Mean (sd)

Nulliparous

Multiparous

Vitamin D group

Control group

N

p-value

Vitamin D group

Control group

N

p-value*

25(OH)D at baseline (ng/mL)

13.13(6.91)

13.25 (6.55)

41/51

0.93

12.49 (9.08)

9.31 (5.34)

34/27

0.15

25(OH)D at delivery (ng/mL)

18.40 (11.38)

12.49 (6.29)

33/43

0.01

16.58 (8.54)

11.36 (5.47)

28/25

0.02

Depression score at baseline

8.41(3.52)

8.73 (3.57)

41/51

0.67

8.47 (4.35)

8.48 (4.30)

34/27

0.99

Depression score at 38-40w gestation

6.47(3.43)

7.98 (3.74)

38/46

0.06

5.80 (3.62)

7.44 (4.28)

30/27

0.12

Depression score at postpartum (4w)

4.59(3.24)

7.27 (4.04)

34/45

0.002

4.60 (3.40)

7.52 (4.70)

30/27

0.01

Depression score at postpartum (8w)

4.18(3.79)

7.24 (3.79)

34/45

0.001

4.20 (3.79)

7.07 (4.37)

30/27

0.01

  1. *Mann–Whitney U test