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Table 4 Study quality score

From: Does off-pump coronary revascularization confer superior organ protection in re-operative coronary artery surgery? A meta-analysis of observational studies

Study

Quality assessment – selection

Quality assessment – comparability

Quality assessment – outcome assessment

Quality assessment - score (out of 15)

1

2

3

4

5

6

7

Alamanni [10]

*

*

*

-

-

*

-

4

Bergsland [11]

*

*

*

***

*

*

-

8

Czerny [12]

*

*

*

**

-

*

*

7

Dewey [13]

*

*

*

****

-

*

-

8

D’Ancona [14]

*

*

*

*****

**

*

-

11

Gerli [15]

*

*

*

****

-

*

-

8

Mishra [16]

*

*

*

-

-

*

-

4

Morris [17]

*

*

*

*****

*

*

-

10

Schutz [18]

*

*

*

*****

-

*

*

10

Teodori [19]

*

*

*

***

-

*

*

8

Tugtekin [20]

*

*

*

****

**

*

*

11

Vohra [21]

*

*

*

****

**

*

*

11

  1. *: the number of points each study is given in each of the categories.
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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