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Table 4 Newcastle-Ottawa scale quality evaluation

From: Association of frailty and physical function in patients with non-dialysis CKD: a systematic review

First author, year

Selection

Comparability

Outcome

Total

CKD and frailty associated with outcome

Wilhelm-Leen [14]

3

2

0

5

Roshanravan [15]

2

2

1

5

CKD and frailty associated

Odden [17]

3

2

0

5

Shlipak [18]

3

2

0

5

Fried [4]

4

2

1

7

Bowling [19]

4

1

1

6

Lattanzio [16]

3

2

0

5

  1. Newcastle-Ottawa Scale Quality Criteria can be found in Additional file 1: Appendix 2.