The percentage of men reporting heavy alcohol use was significantly higher in the Midwest/West region (14.3%) than in the East Coast (8.6%) or West Coast (9.2%) region. Between-region differences also were observed for marijuana use (West Coast: 52.4%; East Coast: 44.9%; Midwest/ West: 41.3%), cocaine use (East Coast: 22.2%; Midwest/West: 19.2%; West Coast: 16.5%), and use of hallucinogens (West Coast: 27.2%; East Coast: 25.0%; Midwest/ West: 19.4%), although these differences were smaller (comparison Ps