Table 1 Characteristics of studies performed on meta-analysis in unilateral endometrial laparoscopic group

Suksompong, 2012, [9]

Thailand

28

2.14

1.45

–

High

Ergun, 2011, [10]

Turkey

50

2.03 ± 0.41

1.95 ± 0.62

–

High

Ergun, 2015, [11]

Turkey

38

3.15 ± 2.86

2.10 ± 1.82

–

High

Hwu, 2011, [12]

Taiwan

147

2.48

1.33

–

High

Chang, 2010, [13]

Korea

20

2.78

1.8

–

Medium

Mostaejeran, 2015, [14]

Iran

33

3.08

1.75

–

Medium

Adnyana, 2018, [15]

Indonesia

25

2.17 ± 1.24

1.79 ± 0.97

–

High

Chun, 2015, [16]

Korea

26

4.97 ± 2.66

3.59 ± 1.83

–

High

Salihoğlu, 2016, [17]

Canada

34

3.50 ± 2.70

2.70 ± 1.40

–

High

Alborzi, 2014, [6]

Iran

193

4.31 ± 3.82

2.53 ± 2.92

–

High

El-Dorf-1, 2015, [18]

Egypt

120

3.10 ± 0.31

2.50 ± 0.11

2.20 ± 0.27

High

El-Dorf-2, 2015, [18]

Egypt

80

2.40 ± 0.22

2.00 ± 0.23

1.90 ± 0.21

High

Nappi, 2016, [19]

Italy

45

3.01 ± 0.78

–

2.76 ± 0.8

High

Saito, 2018, [20]

Japan

32

4.40 ± 2.55

–

1.2 ± 1.3

High

Marshall, 2019, [21]

Sudan

20

3.22

–

1.82

Medium

Shao, 2016, [22]

China

36

5.02 ± 3.05

–

4.43 ± 2.13

High

Celik, 2012, [23]

Turkey

39

1.05

–

0.6

High