Table C28Quality of the studies (% of maximum possible) by sponsorship, journal of publication, data sources, and country of publication (means ± standard deviations)

StudiesSelection of PatientsAdjustment for Confounding FactorsQualityApplicability
Sponsorship
Grant73.0 ± 0.63.6 ± 2.164.0 ± 11.93.3 ± 0.8
Unknown83.3 ± 0.73.1 ± 2.465.0 ± 10.53.6 ± 0.5
Industry23.5 ± 0.75.0±0.076.4 ± 19.23.0 ± 1.4
Journal of Publication
General medicine23.0 ± 0.015.0 ± 0.0168.2 ± 4.52.5 ± 0.7*
Oncology24.0 ± 0.01*5.0 ± 0.0179.6 ± 14.64.0 ± 0.01
Other23.5 ± 0.72.5 ± 3.565.4 ± 9.64.0 ± 0.01*
Urology72.9 ± 0.7*3.0 ± 2.259.5±11.83.1 ± 0.7
Data used
Administrative103.2 ± 0.64.0 ± 1.967.4 ± 12.53.2 ± 0.8
Medical Records73.1 ± 0.72.9 ± 2.463.9 ± 11.53.7 ± 0.5
Country where Study was Conducted
Austria13.00.054.33.0
Canada13.05.062.92.0*
USA153.23.766.93.5*
*

significant differences at 95% confidence interval

From: Appendix C, Evidence Tables and Figures

Cover of Comparative Effectiveness of Therapies for Clinically Localized Prostate Cancer
Comparative Effectiveness of Therapies for Clinically Localized Prostate Cancer [Internet].
Comparative Effectiveness Reviews, No. 13.
Wilt TJ, Shamliyan T, Taylor B, et al.

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