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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