Hi,   Yes, it looks like it also uses a different method of combining the per-stratum estimates, from Agresti, rather than the stratified calculations described in the Miettinen & Nurminen paper.   (With apologies to the moderator if this is inappropriate) if you are able to use R, CMH-weighted stratified MN confidence intervals can be obtained using the 'ratesci' package. This also includes a skewness-corrected version that results in more evenly-distributed tail probabilities. ... View more