Table 4

Summary of health and economic outcomes over 20 years

VariableUsual treatment (95% CI)CAIPaDi (95% CI)
Health outcomes
 Life expectancy (life-years gained)10.47 (10.30 to 10.62)10.96 (10.84 to 11.1)
 Differential life-years gained0.50 (0.46 to 0.54)
 QALYs6.06 (5.92 to 6.19)6.84 (6.71 to 6.96)
 Differential QALYs0.78 (0.75 to 0.80)
Cost
 20-year direct medical cost$18 819 ($16 731 to $19 545)$18 138 ($17 349 to $20 045)
 Differential direct medical cost−$681 (−$995 to −$366)
Cost-effectiveness
 ICER based on life expectancy (95% CI)−$13 565 per life year gained (−$1843 to −$789)
 ICER based on QALYs (95% CI)−$874 per QALY gained (−$1238 to −$486)
  • ICER, incremental cost-effectiveness ratio; QALYs, quality-adjusted life years.