Table II.
Mean treatment effects based on estimated PeT effects (surgery versus active surveillance)
| Effect | 7-year costs, 2009 $ Mean (95% CIa) |
7-year surv. pr., %pt Mean (95% CIa) |
|---|---|---|
| Average treatment effect (ATE) | −30,056 (−115,807, 19,355) | 7.4 (−17.7, 40.2) |
| Effect on the treated (TT) | −28,191 (−115,877, 20,451) | 7.4 (−17.1, 43.2) |
| Effect on the UNTREATED (TUT) | −35,255 (−109,419, 16,543) | 7.4 (−19.3, 30.8) |
| TT – TUT | 7064 (−8,969, 15,340) | 0.01 (−5.8, 13.3) |
| With perfect selection on survival PeTs | ||
| Average treatment effect | −30,641 (−119,640, 22,116) | 12.6 (2.5, 37.0) |
| Effect on the treated | −28,332 (−119,927, 22,859) | 12.7 (1.5, 40.5) |
| Effect on the untreated | −28,332 (−117,645, 17,882) | 12.4 (5.1, 26.7) |
| Gains with perfect selection | ||
| ATE(Sel) – ATE | −585 (−14,394, 4,885) | 5.2 (−3.4, 23.3) |
| TT(Sel) – TT | −141 (−14,035, 5,475) | 5.3 (−3.0, 21.9) |
Note: Bold face indicates exclusion of zero from 95% CI.
a
95% CI based on bias-corrected estimates from 1000 bootstrap replicates.