Data supplements
Online Appendices
Files in this Data Supplement:
- Appendix 1: Terms used to search PubMed for eligible studies
- Appendix 2: Expanded version of Fig. 1 in the main article ( CMAJ 2006;1755:635-41), showing comparison of relative risk estimates from randomized trials for specific harms of medical interventions and from each nonrandomized study...
- Appendix 3: Differences in absolute risks of harms in randomized trials and in each of the corresponding nonrandomized studies
- Appendix 4: Comparison of adjusted (ad) and unadjusted (un) relative risk estimates within each nonrandomized study. Error bars represent 95% confidence intervals.