In 2003, opiates other than heroin (non-heroin opiates) were the primary substance of abuse for 51,000 substance abuse treatment admissions (3 percent of all admissions). Some 47 percent of non-heroin opiate admissions were female compared with 32 percent of heroin admissions. Non-heroin opiate admissions were more likely than heroin admissions to be entering treatment for the first time (40 vs. 22 percent)