Table 2. Relationship between number of embryos transferred and single and multiple pregnancy rates
Single
gestation
n (%)
Multiple
gestation
n (%)
 
PR
 
Total
NÂș embryos
1 53 (100) - - 53
2 288 (70.8) 119 (29.2) 2.42* 407
3 167 (65.2) 89 (34.8) 1.88* 256
4 20 (66.7) 10 (33.3) 2.00* 30
Total 528 218 - 746
* P < 0.01