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Table 3 Quality score assessment

From: Association between lncRNA H19 rs217727 polymorphism and the risk of cancer: an updated meta-analysis

Studies

Selection

Comparability

Exposure

Total

Case definition adequate

Representativeness of the cases

Selection of controls

Definition of controls

Comparability of cases and controls on the basis of the design or analysis

Ascertainment of exposure

Uniform method of ascertainment

Nonresponserate

Jin [10]

*

*

*

*

**

*

*

*

9

Li [9]

*

*

*

*

**

*

*

*

9

Xia [11]

*

*

*

*

**

*

*

*

9

Hua [17]

*

*

0

*

**

*

*

0

7

Yang [8]

*

*

0

*

**

*

*

*

8

Verhaegh [16]

*

*

*

*

**

*

*

*

9

Hu [22]

*

*

0

*

**

*

*

*

8

Guo [23]

*

*

*

*

**

*

*

0

8

Lin [12]

*

*

0

*

*

*

*

*

7

He2 [1]

*

*

0

*

**

*

*

*

8

Hassanzarei [13]

*

*

*

*

0

*

*

*

7

Li [18]

*

*

0

*

**

*

*

*

8

Yuan [24]

*

*

*

*

**

*

*

0

8

Cui [14]

*

*

*

*

*

*

*

0

7

Li [19]

*

*

0

*

**

*

*

*

8

Abdollahzadeh [15]

*

*

0

*

**

*

*

*

8

Yin [20]

*

*

0

*

**

*

*

*

8

  1. *indicates a score of 1, **indicates a score of 2. The total score ranged from 0 to 9
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BMC Medical Genetics

ISSN: 1471-2350

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