Table 1. Characteristics of all studies included in the meta-analysis.
| No. | Study (authors,year) | Design | intervention/protocol | study group(N) | operated side | control group(N) | Outcome measures | Quality score | Location (country) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Canis et al. (2001) | Retrospective case-control | IVF long | Endometrioma cystectomy(39) | Either | surgically treated endometriosis but without endometrioma (128) | NOR | 8 | France |
| 2 | Geber et al. (2002) | Retrospective cohort | IVF/ICSI long | Endometrioma cystectomy(45) | Either | without ovarian surgery or endometriosis (48) | DOS,NOR,TFE,PR | 8 | Brazil |
| 3 | Ho. et al. (2002) | Retrospective case-control | IVF long | operated side(38) | UL | intact side(38) | NDF,NOR | 8 | Taiwan |
| 4 | Marconi et al. (2002) | Retrospective cohort | IVF long | Endometrioma cystectomy(39) | Either | tubal factor (39) | NOR,TFE, NDF,E2L,PR | 8 | Argentina |
| 5 | Pabuccu et al. (2007) | Randomize control trail | IVF/ICSI long | Endometrioma cystectomy(41) | Either | untreated endometrioma (33) | DOS,NDF, NOR,E2L,TFE, PR | RCT | Turkey |
| 6 | Pabuccu et al. (2004) | Randomize control trail | IVF/ICSI long | Endometrioma cystectomy(44) | Either | tubal factor(46) | DOS,E2L,NDFPR | RCT | Turkey |
| 7 | Wong et al. (2004) | Retrospective cohort | IVF/ICSI long | Endometrioma cystectomy(36) | Either | untreated endometrioma (38) | E2L,TFE, PR | 8 | USA |
| 8 | Garcia-velasco et al.(2004) | Retrospective case-control | IVF/ICSI long | Endometrioma cystectomy(147) | Either | untreated endometrioma (63) | TOG,DOS, E2L,NOR,TFE, PR | 8 | Spain |
| 9 | Loo et al. (2005) | Retrospective case-control | IVF ND | Endometrioma cystectomy(127) | Either | tubal factor(95) | TOG,E2L,NOR | 8 | Taiwan |
| 10 | Ragni et al. (2005) | Retrospective case-control | IVF/ICSI long | operated side(17) | UL | intact side(17) | NOR,NDF, | 8 | Italy |
| 11 | Dermirol et al. (2006) | Randomize control trail | ICSI long | Endometrioma cystectomy(49) | Either | untreated endometrioma (50) | TOG,DOS, E2L,TFE, PR | RCT | Turkey |
| 12 | Esinler et al. (2006) | Retrospective case-control | ICSI long | Endometrioma cystectomy(23) | BL | tubal factor(99) | TOG,DOS, E2L,TFE, PR | 8 | Turkey |
| 13 | Matalliotakis et al.(2007) | Retrospective case-control | IVF/ICSI long | Endometrioma cystectomy(133) | Either | tubal factor(208) | NDF,DOS, NOR,E2L,TFE, PR,LBR | 8 | USA |
| 14 | Nakagawa et al. (2007) | Retrospective cohort | IVF long | Endometrioma cystectomy(10) | Either | no endometrioma (70) | NOR,E2L,TFE PR | 8 | Japan |
| 15 | Somiglianaet al. (2008) | Retrospective cohort | IVF/ICSI long | Endometrioma cystectomy(68) | BL | other factor of infertility(136) | DOS,NDF, NOR,TFE,LBR | 8 | Italy |
| 16 | Kahyaoglu et al. (2008) | Retrospective case-control | IVF long | Endometrioma cystectomy(22) | Either | tubal factor(22) | NDF,NOR,E2L PR | 8 | Turkey |
| 17 | Yamamoto et al. (2010) | Retrospective case-control | IVF/ICSI long/short | Endometrioma cystectomy(35) | BL | cyst-free(94) | TOG,NOR, PR | 9 | Japan |
| 18 | Bongioanniet al. (2011) | Retrospective case-control | IVF long | Endometrioma cystectomy(112) | Either | untreated endometrioma (142) | TOG,NOR,TFE PR,LBR | 8 | Italy |
| 19 | Dong et al. (2014) | Retrospective Cohort | IVF/ICSI:long/antagonist/prolonged | Endometrioma cystectomy(153) | Either | untreated endometrioma (68) | TOG,DOS,NDFNOR,E2L,TFE, PR,LBR | 8 | China |
| 20 | Lee et al. (2014) | Retrospective cohort | IVF/ICSI:long/antagonist/prolonged | Endometrioma cystectomy(36) | Either | untreated endometrioma (36) | TOG,DOS,NDF,NOR,TFE, PR,LBR | 8 | Korea |
| 21 | Somiglianaet al. (2003) | Retrospective case-control | IVF/ICSI long | operated side(20) | UL | intact side(20) | NDF | 8 | Italy |
Note:UL = unilateral; BL = bilateral; TOG = total of GN used; DOS = duration of stimulation; E2L = E2 level on HCG day; NDF = number of dominant follicle; NOR = number of oocyte retrieved; TFE = total formed embryos; PR = Pregnancy rate; LBR = Live birth rate; ND = not documented