Challenges in Systematic Reviews of Therapeutic Devices and Procedures

Figure 2. The distribution of results revealed that 9% of studies within each design had statistically significant findings. Adapted with permission from reference : Deeks JJ, Dinnes J, D'Amico R, Sowden AJ, Sakarovitch C, Song F, et al. Evaluating non-randomised intervention studies. Health Technol Assess. 2003;7:iii-x, 1-173.
Figure 2. The distribution of results revealed that 9% of studies within each design had statistically significant findings. Adapted with permission from reference : Deeks JJ, Dinnes J, D'Amico R, Sowden AJ, Sakarovitch C, Song F, et al. Evaluating non-randomised intervention studies. Health Technol Assess. 2003;7:iii-x, 1-173. Comparison of the results of 8000 randomized, controlled trials (RCTs) and 8000 concurrently controlled trials (CCTs) obtained from resampling within the European Carotid Surgery Trial.27

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  1. Ann Intern Med June 21, 2005 vol. 142 no. 12 Part 2 1100-1111
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