Table 3 Quality assessment table
Study | Sample | Prognostic factors | Follow-up | |||
|---|---|---|---|---|---|---|
Source of sample clearly defined | Enough description of the sample | Clear definition/description of the used prognostic factor | Measured appropriately (reliability, validity) | Completeness rate (>80%) | Adequate description of completeness | |
Fulde et al. 1995 [18] | P | P | Y | Y | Y | N |
A. Junge et al. 1995 [19] | P | Y | Y | Y | Y | Y |
Schade et al. 1999 [21] | P | Y | Y | Y | Y | N |
V. GRAVER et al. 1999 [20] | Y | Y | Y | Y | Y | Y |
Kohlboek et al. 2004 [23] | Y | Y | P | Y | Y | N |
L. Arpino et al. 2004 [22] | Y | P | Y | Y | N | N |
Den Boer et al. 2006 [24] | P | Y | Y | Y | Y | Y |
Silverplats et al. 2010 [27] | P | Y | Y | Y | Y | N |
JOHANSSON et al. 2010 (A) [26] | Y | Y | Y | Y | Y | Y |
D’Angelo et al. 2010 [25] | Y | Y | Y | Y | Y | P |
Kleinstueck et al. 2011 [29] | Y | Y | Y | P | Y | N |
Chaichana et al. 2011 [28] | P | Y | Y | Y | Y | Y |
Sorensen and Mors 1989 [17] | Y | P | P | Y | Y | Y |
Study | Ouxtcome | Analysis | Â | Score out of (22) Y=2, P=1, N=0 | ||
Clear definition/description of the used outcome | Measured appropriately (reliability, validity) | Enough description | Appropriate analysis | Account for confounding with appropriate analysis | ||
Fulde et al. 1995 [18] | Y | N | P | Y | N | 13 |
A. Junge et al. 1995 [19] | Y | N | Y | Y | Y | 19 |
Schade et al. 1999 [21] | Y | Y | Y | Y | Y | 19 |
V. GRAVER et al. 1999 [20] | Y | P | P | Y | P | 19 |
Kohlboek et al. 2004 [23] | Y | P | P | P | Not clear | 14 |
L. Arpino et al. 2004 [22] | Y | Y | P | Y | P | 15 |
Den Boer et al. 2006 [24] | Y | Y | Y | Y | Y | 21 |
Silverplats et al. 2010 [27] | Y | Y | Y | Y | Y | 19 |
JOHANSSON et al. 2010 [26] | Y | Y | P | Y | P | 20 |
D’Angelo et al. 2010 [25] | Y | Y | P | Y | P | 19 |
Kleinstueck et al. 2011 [29] | Y | Y | Y | Y | Y | 19 |
Chaichana et al. 2011 [28] | Y | Y | Y | Y | Y | 21 |
Sorensen and Mors 1989 [17] | Y | N | Y | P | P | 16 |