Estimates of mean survival months in 10.5 years of follow-up using the Monte Carlo method based on the first 4.5 years of follow-up data for the TCR and the NHIRD were compared with the Kaplan–Meier estimates based on 10.5 years of follow-up (July 1997 to December 2007)
| Cancer site | TCR | NHIRD | ||||||
| 10.5-year follow-up | Extrapolation based on the first 4.5-year follow-up | 10.5-year follow-up | Extrapolation based on the first 4.5-year follow-up | |||||
| Kaplan–Meier method | Monte Carlo method | Kaplan–Meier method | Monte Carlo method | |||||
| Mean | Mean | SE | Relative bias (%) | Mean | Mean | SE | Relative bias (%) | |
| Lung | 21.14 | 20.07 | 0.4 | −5.06 | 23.87 | 23.45 | 0.56 | −1.76 |
| Bladder | 77.81 | 76.36 | 1.45 | −1.86 | 82.08 | 81.70 | 1.54 | −0.47 |
| Leukaemia | 38.04 | 33.14 | 1.79 | −12.89 | 52.15 | 46.6 | 2.63 | −10.64 |
NHIRD, National Health Insurance Research Database; TCR, Taiwan Cancer Registry.