63 randomized controlled trials reported by Edwards et al. (1998) that each investigated the benefit of oral aspirin for pain relief.
A data frame with 63 observations on the following 3 variables.
Study estimate: log-odds ratio for the proportion of patients in each arm who had at least a 50% reduction in pain
Corresponding standard errors
This dataset is included in this package to demonstrate asymmetry in meta-analysis, where smaller studies tend to show larger effect size estimates, whereas larger studies tend to report more modest results.
Edwards, J. E. Oldman, A., Smith, L., Collins, S. L., Carol, D., Wiffen, P. J., McQuay, H.J., and Moore, R.A. (1998) Single dose oral aspirin for acute pain. Cochrane Database of Systematic Reviews, 4.
## Not run: MetaAnalyser(aspirin)
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