| Studies | Selection of Patients | Adjustment for Confounding Factors | Quality | Applicability | |
|---|---|---|---|---|---|
| Sponsorship | |||||
| Grant | 7 | 3.0 ± 0.6 | 3.6 ± 2.1 | 64.0 ± 11.9 | 3.3 ± 0.8 |
| Unknown | 8 | 3.3 ± 0.7 | 3.1 ± 2.4 | 65.0 ± 10.5 | 3.6 ± 0.5 |
| Industry | 2 | 3.5 ± 0.7 | 5.0±0.0 | 76.4 ± 19.2 | 3.0 ± 1.4 |
| Journal of Publication | |||||
| General medicine | 2 | 3.0 ± 0.01 | 5.0 ± 0.01 | 68.2 ± 4.5 | 2.5 ± 0.7* |
| Oncology | 2 | 4.0 ± 0.01* | 5.0 ± 0.01 | 79.6 ± 14.6 | 4.0 ± 0.01 |
| Other | 2 | 3.5 ± 0.7 | 2.5 ± 3.5 | 65.4 ± 9.6 | 4.0 ± 0.01* |
| Urology | 7 | 2.9 ± 0.7* | 3.0 ± 2.2 | 59.5±11.8 | 3.1 ± 0.7 |
| Data used | |||||
| Administrative | 10 | 3.2 ± 0.6 | 4.0 ± 1.9 | 67.4 ± 12.5 | 3.2 ± 0.8 |
| Medical Records | 7 | 3.1 ± 0.7 | 2.9 ± 2.4 | 63.9 ± 11.5 | 3.7 ± 0.5 |
| Country where Study was Conducted | |||||
| Austria | 1 | 3.0 | 0.0 | 54.3 | 3.0 |
| Canada | 1 | 3.0 | 5.0 | 62.9 | 2.0* |
| USA | 15 | 3.2 | 3.7 | 66.9 | 3.5* |
significant differences at 95% confidence interval
From: Appendix C, Evidence Tables and Figures
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