Criteria of quality | Studies | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Berenson et al, 2002 [22] | Bernstein et al, 1997 [33] | Chang et al, 2005 [29] | Cheung et al, 2004 [23] | Drach et al, 2001 [24] | Fernando-pulle et al, 2003 [32] | Hettler et al, 2003 [27] | Pierce et al, 2010 [31] | Valvano et al, 2009 [30] | Vinchon et al, 2010 [25] | Vinchon et al, 2005 [26] | Wells et al, 2002 [28] | Wells et al, 1997 [21] |
1. Representative spectrum of patients | Unclear | Unclear | Yes | Unclear | Unclear | Unclear | Yes | Unclear | Unclear | No | Unclear | Unclear | Unclear |
2. Description of selection criteria | Yes | No | Yes | No | No | No | Yes | No | No | Yes | No | No | No |
3. Replication of the index test | Yes | Yes | Unclear | Yes | Yes | Yes | No | Yes | Yes | No | Unclear | No | Yes |
4. Cutoff determined before results were available | Yes | No | No | NA* | Yes | No | NA* | No | NA* | NA* | NA* | No | No |
5. Interpretation without knowledge of the results of reference standard | Unclear | Yes | Unclear | Unclear | Unclear | Yes | Unclear | No | Unclear | Unclear | Unclear | Yes | Unclear |
6. Classification by reference standard | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
7. Replication of the reference standard | No | No | No | Yes | No | No | No | No | No | No | No | No | No |
8. Interpretation without knowledge of the results of index test | Unclear | Yes | Unclear | Unclear | Yes | Yes | Unclear | Yes | Yes | Unclear | Unclear | Yes | Unclear |
9. Independence of reference and index tests | Yes | Unclear | Unclear | No | Yes | Yes | Yes | Unclear | Yes | Unclear | Unclear | Unclear | Unclear |
10. Systematic reference standard | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
11. Same reference standard | No | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No |
12. Short enough time period between reference and index tests | Yes | No | Yes | Unclear | Unclear | Unclear | Yes | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
13. Uninterpretable results reported | Yes | No | No | No | No | No | Unclear | No | No | No | No | No | No |
14. Uninterpretable results balanced | Yes | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear |
15. Same clinical data available as in routine | Unclear | Unclear | Unclear | Yes | Yes | Yes | Unclear | Unclear | Unclear | Unclear | Unclear | Unclear | No |