| exrehab {metaviz} | R Documentation |
Example data for a meta-analysis of dichotomous outcomes: Exercise-based cardiac rehabilitation
Description
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).
Usage
exrehab
Format
A data frame with 14 rows and 15 variables:
- study_name
short name of each study
- year
publication year of each study
- ai
number of patients in the treatment group with an event (hospital admission) for each study.
- bi
number of patients in the treatment group with no event for each study.
- ci
number of patients in the control group with an event (hospital admission) for each study.
- di
number of patients in the control group with no event for each study.
- n1i
number of patients in the treatment group for each study, (ai + bi).
- n2i
number of patients in the control group for each study, (ci + di).
- rr
relative risk of an event for treatment vs. control, (ai/n1i)/(ci/n2i).
- or
odds ratio of an event for treatment vs. control, (ai*di)/(bi*ci).
- logrr
natural logarithm of the relative risk (
rr) for meta-analysis.- logrr_se
standard error of the natural logarithm of the relative risk for meta-analysis, sqrt(1/ai + 1/ci - 1/(ai + bi) - 1/(ci + di)).
- logor
natural logarithm of the odds ratio (
or) for meta-analysis.- logor_se
standard error of the natural logarithm of the odds ratio for meta-analysis, sqrt(1/ai + 1/bi +1/ci + 1/di).
- followup
dichotomous moderator: follow up duration.
References
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.