ci_to_var: Calculate variance given confidence interval limit and point...
In MetaUtility: Utility Functions for Conducting and Interpreting Meta-Analyses

Description Usage Arguments Details

Returns approximate variance (i.e., squared standard error) of point estimate given either the upper or lower limit (ci.lim) of a Wald-type confidence interval. If degrees of freedom (df) are not provided, it is assumed that the confidence interval uses a z-distribution approximation. If degrees of freedom are provided, it is assumed that the confidence interval uses a t-distribution approximation.

1	ci_to_var(est, ci.lim, ci.level = 0.95, df = NA)

`est`	Point estimate
`ci.lim`	Lower or upper confidence interval limit
`ci.level`	Confidence interval level as a proportion (e.g., 0.95)
`df`	Degrees of freedom

The estimate and confidence interval must be provided on a scale such that the confidence interval is symmetric. For example, if the point estimate is a relative risk, then the estimate and confidence interval should be provided on the log-relative risk scale.

MetaUtility documentation built on Oct. 30, 2021, 5:07 p.m.