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. 2013 Oct 22;14:228. doi: 10.1186/1471-2369-14-228

Table 4.

Newcastle-Ottawa scale quality evaluation

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

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