A dataset consisting of 14 empirical studies used for a meta-analysis in Anderson et al. (2016). The outcome of interest was risk of hospital admission of patients with coronary heart disease within follow up duration. Compared was exercise-based cardiac rehabilitation (treatment) with usual care (control).
exrehabA data frame with 14 rows and 15 variables:
short name of each study
publication year of each study
number of patients in the treatment group with an event (hospital admission) for each study.
number of patients in the treatment group with no event for each study.
number of patients in the control group with an event (hospital admission) for each study.
number of patients in the control group with no event for each study.
number of patients in the treatment group for each study, (ai + bi).
number of patients in the control group for each study, (ci + di).
relative risk of an event for treatment vs. control, (ai/n1i)/(ci/n2i).
odds ratio of an event for treatment vs. control, (ai*di)/(bi*ci).
natural logarithm of the relative risk (rr) for meta-analysis.
standard error of the natural logarithm of the relative risk for meta-analysis, sqrt(1/ai + 1/ci - 1/(ai + bi) - 1/(ci + di)).
natural logarithm of the odds ratio (or) for meta-analysis.
standard error of the natural logarithm of the odds ratio for meta-analysis, sqrt(1/ai + 1/bi +1/ci + 1/di).
dichotomous moderator: follow up duration.
Anderson, L., Oldridge, N., Thompson, D. R., Zwisler, A. D., Rees, K., Martin, N., & Taylor, R. S. (2016). Exercise-based cardiac rehabilitation for coronary heart disease: Cochrane systematic review and meta-analysis. Journal of the American College of Cardiology, 67, 1-12.