Skip to main content

Table 2 Assessment of the quality of the studies based on the NOS

From: Robotic versus laparoscopic gastrectomy for gastric cancer: a systematic review and meta-analysis

Study

Selection (out of 4)

Comparability (out of 2)

Outcomes (out of 3)

Total (out of 9)

(1)

(2)

(3)

(4)

(5)

(6)

(7)

Zhang [21]

*

*

*

*

**

*

  

7

Liu [22]

*

*

*

*

**

*

  

7

Huang [23]

*

*

*

*

**

*

  

7

Zhou [24]

*

*

*

*

**

*

*

*

9

Son T [25]

*

*

*

*

**

*

*

*

9

Han [26]

*

*

*

*

**

*

*

*

9

Lee [27]

*

*

*

*

*

*

*

*

8

Suda [28]

*

*

*

*

*

*

 

*

7

Shen [29]

*

*

*

*

**

*

  

7

Hong [30]

*

*

*

*

**

*

  

7

Lan [31]

*

*

*

*

**

*

  

7

Zhang [32]

*

*

*

*

**

*

*

*

9

Li [33]

*

*

*

*

**

*

*

 

8

Obama [34]

*

*

*

*

**

*

*

*

9

Gao [35]

*

*

*

*

**

*

*

*

9

Sun [36]

*

*

*

*

**

*

  

7

Ye [37]

*

*

*

*

**

*

  

7

Kong [38]

*

*

*

*

**

*

  

7

Cui [39]

*

*

*

*

**

*

  

7

  1. (1) Representativeness of the exposed cohort, (2) selection of the non-exposed cohort, (3) ascertainment of exposure, (4) demonstration that outcome of interest was not present at start of study, (5) assessment of outcome, (6) was follow-up long enough for outcomes to occur, (7) adequacy of follow-up of cohorts
Back to article page

World Journal of Surgical Oncology

ISSN: 1477-7819

Contact us