The standardized mean difference \(y_i\) and standard errors \(se_i\) for seven randomised studies on the use of topical steroids in treatment of chronic rhinosinusitis with nasal polyps.
data("steroid")
A data frame of \((y_i, se_i)\) for \(i = 1,...,7\).
y
standard mean difference of clinical trials for topical steroids found in the \(i^{th}\) study
se
standard error of the standard mean difference for the \(i^{th}\) study