data infants; input malform alcohol count @@; cards; 1 0 17066 1 0.5 14464 1 1.5 788 1 4.0 126 1 7.0 37 2 0 48 2 0.5 38 2 1.5 5 2 4.0 1 2 7.0 1 ; proc freq; weight count; tables malform*alcohol/chisq cmh1; proc freq; weight count; tables malform*alcohol/cmh1 scores=ridit; run;