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. 2017 Apr 20;37(4):512–516. [Article in Chinese] doi: 10.3969/j.issn.1673-4254.2017.04.15

4.

产科结局

Obstetric outcome of the IVF-ET cycles

Item Elective single embryo transfer (n=19) Double embryo transfer (n=103) P
Gestational age (week) 38.7± 1.2 37.8±1.9 0.028
Preterm delivery rate 10.5% (2/19) 27.2% (28/103) 0.154
Birth weight (kg) 3.3 ± 0.4 2.9 ± 0.6 0.004
Low birth weight rate 0/19 22.6% (30/133) 0.015