How many times in the past Y have you used an illegal drug or used a prescription medication for non-medical reasons:NRat:1Y:^Patient:Qn
how many times in the past y have you used an illegal drug or used a prescription medication for non-medical reasons:nrat:1y:^patient:qn
How many times in the past Y have you used an illegal drug or used a prescription medication for non-medical reasons:Number=Count/Time:1 year:^Patient:Quantitative
how many times in the past y have you used an illegal drug or used a prescription medication for non-medical reasons:number=count/time:1 year:^patient:quantitative