Table 3. Comparison of laboratory results between the three evaluated groups.
BMI Normal Overweight Obesity
No. total oocytes 586 771 338
No. total inseminated oocytes 455 587 288
No. total fertilized oocytes (2PN) (%) 399 (87.7) 501 (85.3) 242 (84.0)
No. total cleaved embryo at Day 3 (%) 388 (97.2) 497 (99.2) 239 (98.8)
No. cell/embryo at Day 3 (Mean ± SD) 7.3±0.79 6.7±1.73* 6.8±1.04*
Good-quality embryos at Day 3 (%) 84.0 82.3 79.9
Blastocyst formation rate (%) 48.2 40.0* 40.1*
Good-quality blastocysts (%) 92.9 91.5 88.7
Full blastocyst (%) 13.4 11.6 18.6
Expanded blastocyst (%) 80.2 83.4 78.3
Hatching blastocyst (%) 6.4 5.0 3.1

*p<0.05 in relation to normal group