Data frame containing the results of 19 trials comparing statins to placebo or usual care (Dias et al. 2011) . The number of deaths (all-cause mortality) are recorded. In some studies the aim was primary prevention (patients had no previous heart disease), and in others the aim was secondary prevention (patients had previous heart disease).
Format
A data frame with 38 rows and 7 variables:
- studyn
numeric study ID
- studyc
study name
- trtn
numeric treatment code
- trtc
treatment name
- prevention
primary or secondary prevention study
- r
number of deaths
- n
sample size
References
Dias S, Sutton AJ, Welton NJ, Ades AE (2011). “NICE DSU Technical Support Document 3: Heterogeneity: subgroups, meta-regression, bias and bias-adjustment.” National Institute for Health and Care Excellence. https://www.sheffield.ac.uk/nice-dsu.