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Table 4 Quality assessment for the included trials

From: C1GALT1 expression is associated with galactosylation of IgA1 in peripheral B lymphocyte in immunoglobulin a nephropathy

Reference

year

Selection of subjects/4*1

Comparability of groups/2*2

Measurement of Exposure/4*1

Total score of NOS/10

Shao [8]

2016

2

2

1

5

Cai [9]

2010

1

2

1

4

Buck [10]

2008

2

2

2

6

Boyd [11]

2014

2

2

1

5

Allen [12]

1997

1

2

1

4

Qin [5]

2005

2

2

2

6

  1. Assessment of risk bias assessed with NOS (Newcastle-Ottawa Scale)