| Cleavage-stage transfer group | Blastocyst transfer group |
---|---|---|
Number of patients | 310 | 168 |
Female patient age (y, mean± SD) | 29.61±3.03 | 28.87±2.70a |
Duration of infertility (y, mean± SD) | 3.90±1.88 | 3.92±1.90 |
Body mass index (w, mean± SD) | 21.88±2.54 | 21.84±2.24 |
ICSI cycle, no. of patients (%) | 90( 29.0) | 45(26.8) |
Tubal factor, no. of patients (%) | 151( 48.7) | 83(49.4) |
Male factor, no. of patients (%) | 43(13.9 ) | 23(13.7) |
Tubal and male factor, no. of patients (%) | 89( 28.7) | 52(31.0) |
Multiple factors, no. of patients (%) | 27( 8.7) | 10(6.0) |