Table 6 Birth and birth-related characteristics by aspirin use during pregnancy.

From: Potential impact on using aspirin as the primary prevention of adverse pregnancy outcomes in twins conceived using ART

 

Aspirin use

p value

No

Yes

Neonatal gender

 Like-sex male

60 (23.3%)

79 (31.2%)

0.006

 Unlike-sex

144 (56.0%)

106 (41.9%)

 Like-sex female

53 (20.6%)

68 (26.9%)

Percent difference in birth weight > 20%, n (%)

 No

229 (89.1%)

216 (85.4%)

0.258

 Yes

28 (10.9%)

37 (14.6%)

Mean birth weight (g), mean ± SD

2528 (2528 ± 967)

2552 (2552 ± 898)

0.775

Smaller birth weight (g), mean ± SD

2334 (2334 ± 477)

2361 (2361 ± 398)

0.491

Difference in birth weight* (g), mean ± SD

388 (388 ± 1712)

382 (382 ± 1643)

0.966

Transfer to NICU

 No

187 (72.8%)

188 (74.3%)

0.768

 Yes

70 (27.2%)

65 (25.7%)

  1. * Weight medium (large-small)/large *100% ≥ 20%.