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Table 2 Perinatal outcomes of included patients

From: Perinatal outcomes of human singletons conceived naturally versus assisted reproductive technologies: analysis of the effect of stimulated IVF, modified natural IVF, and frozen embryo transfer

Outcomes

NAT

mnIVF

sIVF

FET

p value

Gestation age (weeks)

39.13 ± 1.41

38.37 ± 2.15

38.11 ± 2.20

38.57 ± 1.72

p < 0.0001

Birth weight (grams)

3351.2 ± 482.1

3301.2 ± 38.8

3257.0 ± 571.4

3444.9 ± 576.7

p < 0.0001

Sex ratio (male/female)

1.06 (10231/9619)

0.82 (106/130)

1.23 (209/170)

0.89 (101/113)

p < 0.05

Delivery (cesarean/natural)

0.33 (4921/14931)

0.44 (70/160)

0.38 (103/274)

0.53 (72/136)

p < 0.0001

  1. Results are presented as mean ± SD