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Table 3 Proportion of true cases identified by ACG models and prior expenditures status at three outcome thresholds

From: Comparison of alternative risk adjustment measures for predictive modeling: high risk patient case finding using Taiwan's National Health Insurance claims

   Model 1:
Demographics
Model 2:
ACGs & Demographics
Model 3:
ADGs, Sel., EDCs & Demographics
Among 2003 top 0.5% user (N = 242)
Top 0.5% predicted group In top 0.5% predicted group only (area A*) 2.07% 2.89% 5.79%
  In both groups (area B*) 0.00% 0.83% 28.51%
  In 2002 top 0.5% users only (area C*) 47.93% 47.11% 19.42%
Among 2003 top 1% user (N = 492)
Top 1% predicted group In top 1% predicted group only (area A*) 2.64% 5.08% 6.10%
  In both groups (area B*) 2.44% 8.74% 25.20%
  In 2002 top 1% users only (area C*) 41.87% 35.57% 19.11%
Among 2003 top 5% user (N = 2,467)
Top 5% predicted group In top 5% predicted group only (area A*) 10.50% 10.58% 10.82%
  In both groups (area B*) 15.28% 25.94% 30.85%
  In 2002 top 5% users only (area C*) 32.27% 21.61% 16.70%
  1. *: in Figure 1