data cocaine; input cocaine disorder count @@; cards; 1 1 62 1 2 35 1 3 7 1 4 6 2 1 578 2 2 152 2 3 24 2 4 23 ; proc npar1way wilcoxon; FREQ count; class cocaine; var disorder; exact wilcoxon; title 'Toxicology in Trauma Example'; title2 'Cocaine Screen vs. Alcohol Disorder'; title3 'Mann-Whitney-Wilcoxon Test'; run;