Table 1.
Studies about endometriosis prevalence in women undergoing laparoscopic ovarian drilling included into the pooled analysis.
| First Author (year) | Women with PCOS (n) | Study Design | Years | Characteristics of PCOS Patients | Women with Endometriosis (n, %) | Additional Findings |
|---|---|---|---|---|---|---|
| Kriplani (2001) [6] | 70 | Retrospective | ? | Anovulatory, CC resistant | 7 (10.0) | Endometriotic cyst in n = 4 (5.7%) |
| Salah (2013) [7] | 120 | Retrospective | ? | Anovulatory, CC resistant | 22 (18.3) | – |
| Zahiri Sorouri (2014) [28] | 100 | Prospective | 2011–2012 | CC resistant | 1 (1.0) | – |
| El-Sayed (2017) [29] | 100 | Prospective | 2015–2017 | CC resistant, BMI < 30 kg/m2, LH >10 IU/mL or LH/FSH ratio >2, free androgen index >4, normal oGTT | 1 (1.0) | – |
| Hager (2019) | 240 | Retrospective | 2008–2018 | Anovulatory, CC resistant, women without signs of endometriosis | 38 (16.9) | – |
Abbreviations used: CC, clomiphene citrate; BMI, body mass index; LH, luteinizing hormone; FSH, follicle stimulating hormone; oGTT, oral glucose tolerance test.