sure will be TRUE if
start is smaller than 0."><meta property="og:description" content="This diagnostic tests whether there is a dependency between the event and subsequent exposures.
This requires you have indicated one of the era covariates to be a pre-exposure window. This
function simply checks whether the confidence interval for the effect estimate of that pre-
exposure window overlaps with the nullBounds.
To designate an era covariate to be the pre-exposure window, set preExposure = TRUE when
calling 