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. 2017 Jul 21;7:6161. doi: 10.1038/s41598-017-06490-8

Table 2.

Infants’ sex difference in maternal records according to gestational age group.

Variables Total study population 23–25 weeks of gestation group 26–29 weeks of gestation group
Male (n = 1118) Female (n = 1045) P Male (n = 311) Female (n = 292) P Male (n = 807) Female (n = 753) P
Multiple births 367 (32.8) 336 (32.2) 0.738 126 (40.5) 101 (34.6) 0.133 241 (29.9) 235 (31.2) 0.564
Maternal diabetes 98 (8.8) 73 (7.0) 0.125 17 (5.5) 14 (4.8) 0.709 81 (10.0) 59 (7.8) 0.709
Maternal hypertension 117 (10.5) 139 (13.3) 0.041 17 (5.5) 19 (6.5) 0.590 100 (12.4) 120 (15.9) 0.044
Chorioamnionitis 386 (34.5) 351 (33.6) 0.646 151 (48.6) 129 (44.2) 0.282 235 (29.1) 222 (29.5) 0.875
Antenatal steroid 881 (78.8) 825 (78.9) 0.934 235 (75.6) 217 (74.3) 0.724 646 (80.0) 608 (80.7) 0.730

Data are presented as n (%).