/* AIDS Data */ 
PROC GENMOD DATA=aids;
  MODEL Cases = Year / DIST=POI;
RUN;

PROC GENMOD DATA=aids;
  MODEL Cases = / DIST=POI;
RUN;

PROC GENMOD DATA=aids;
  MODEL Cases = Year / DIST=POI LRCI TYPE3;
RUN;

ODS GRAPHICS ON;
PROC GENMOD DATA=aids PLOTS=ALL;
  MODEL Cases = Year / DIST=POI LRCI TYPE3;
RUN;
ODS GRAPHICS OFF;

/* British doctors */
DATA britdoc;
  set britdoc;
  Off1000 = log(PersonYears/1000);
RUN;

PROC GENMOD DATA=britdoc;
  CLASS Age Smoking;
  MODEL Deaths = Age Smoking / DIST=POI OFFSET=Off1000;
  ESTIMATE '35-44 Smoker' Intercept 1 Age 0 1 0 0 0 Smoking 0 1;
RUN;