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dcebrik
Fluorite | Level 6
Is there a SAS procedure to calculate Cochran Mantel Haenszel weighted Miettinen and Nurminen confidence intervals for risk difference in stratified samples?
3 REPLIES 3
SAS_Rob
SAS Employee

Yes, with the RISKDIFF(COMMON) option on the TABLES statement you should get Miettinen-Nurminen (score) confidence limits.

 

http://go.documentation.sas.com/?docsetId=statug&docsetTarget=statug_freq_details62.htm&docsetVersio... 

dcebrik
Fluorite | Level 6

Thank you for your time, however this method doesn't appear to use CMH weights.

 

PJL
Calcite | Level 5 PJL
Calcite | Level 5

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.

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