6. Endometrial thickness: data not suitable for analysis.
Study | Intervention (number of cycles/embryo transfer) | Control (number of cycles/embryo transfer) | Endometrial thickness | P value |
Loh 2001 | Clomiphene‐induced ovulation (n = 67) | HT alone or HT plus GnRHa suppression (n = 37) | 9.7 vs 9.8 | n/s |
Peeraer 2015 | Natural cycle FET (n = 332) | HMG FET (n = 340) | 8.9 vs 8.9 | n/s |
FET: frozen‐thawed embryo transfer; GnRHa: gonadotrophin releasing hormone agonist; HMG: human menopausal gonadotrophin; HT: hormone therapy; n/s: not significant.