Data confirm importance of health status adjustment.
D000368:Aged; D002204:Capitation Fee; D002908:Chronic Disease / Q000188:drug therapy; D016527:Drug Costs / Q000706:statistics & numerical data*; D011307:Drug Prescriptions / Q000191:economics; D005260:Female; D006279:Health Maintenance Organizations / Q000191:economics*; D006302:Health Services Research / Q000379:methods; D006304:Health Status; D006801:Humans; D008297:Male; D020379:Risk Adjustment; D014481:United States