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Table 1 Scale assessment of the quality of the studies

From: Robotic versus laparoscopic distal pancreatectomy: an up-to-date meta-analysis

Author

Publication Year

Country

Study

Robotic distal pancreatectomy n

Laparoscopic distal pancreatectomy n

Newcastle – Ottawa scale

Selection/comparability/

Exposure = total score

Balzano [16]

2014

Italy

Retrospective-Multicenter

31

140

4 / 1 / 2 = 7

Butturini [25]

2015

Italy

Prospective

22

21

4 / 2 / 2 = 8

Chen [17]

2015

China

Prospective

69

50

4 / 2 / 2 = 8

Daouadi [18]

2013

USA

Retrospective

30

94

4 / 2 / 2 = 8

Duran [19]

2014

Spain

Retrospective

16

18

4 / 2 / 2 = 8

Goh [20]

2015

Singapore

Retrospective

8

31

4 / 2 / 2 = 8

Kang [22]

2011

Korea

Retrospective

20

25

4 / 2 / 2 = 8

Lai [23]

2015

China

Retrospective

17

18

4 / 1 / 2 = 7

Lee [24]

2014

USA

Retrospective

37

131

4 / 2 / 2 = 8

Waters [26]

2010

USA

Retrospective

17

18

4 / 2 / 2 = 8