Table 3 Quality assessment conducted according to the Newcastle-Ottawa Scale for all the six studies included in this meta-analysis.

From: MIF -173 G > C (rs755622) Gene Polymorphism Modulates Tuberculosis Risk: Evidence from a Meta-analysis and Trial Sequential Analysis

First author [REF]

Quality indicators

Selection

Comparability

Exposure

Liu et al.13

***

*

**

Wang et al.14

****

*

**

Hashemi et al.15

****

*

*

Li et al.16

****

*

**

Sadki et al.17

***

*

*

Gomez et al.18

***

**

*

  1. Note: On assessing the quality of the included studies using the Newcastle-Ottawa Scale, all the studies scored five stars or more which indicates no bias.
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