Evidence of Selection 1997: Prior Medicare Spending of Those Switching to MA Compared with Those Remaining in TM
Values are based on 1997 data and show spending by new MA enrollees in the 12 months before they joined MA (when they were in TM), compared with TM enrollees matched for age, sex, welfare status, employment status, and county. Stayers were randomly given a pseudodate of enrollment to match the distribution dates of the new MA cohort's enrollment.48