Table 1.
Characteristics of the studies included in the review
| Author (year) | Country | Interventions | Patients (n) | Cycles (n) | Outcomes included in the meta-analysis |
|---|---|---|---|---|---|
| Abu Hashim (2010) | Egypt | 2.5 mg LE LOD |
128 132 |
512 525 |
Ovulation rate, miscarriage rate, pregnancy rate, live birth rates |
| Liu (2015) | China | 2.5 mg LE LOD |
71 70 |
382 358 |
Ovulation rate, endometrial thickness, abortion rate, pregnancy rate, live birth rate |
| Abdellah (2011) | Egypt | 5 mg LE LOD |
70 70 |
346 373 |
Endometrial thickness, ovulation rate, miscarriage rate, pregnancy rate, live birth rate |
| Ibrahim (2017) | Egypt | 2.5 mg LE LOD |
40 40 |
40 40 |
Ovulation rate, abortion rate, pregnancy rate |
LE letrozole, LOD laparoscopic ovarian drilling