Table 1 Description of the eight scenarios used to estimate the number of colorectal cancer patients treated with anti-tumour therapy in 2015 in the Czech Republic
Proportion of treated patients (for the year 2015) | Incidence rates (for the period 2009-2015) | Survival rates (for the period 2009-2015) | |
|---|---|---|---|
Survival rates are considered fixed at the most recent values, i.e. survival rates in 2008 | Survival rates are assumed to improve in the same manner as observed in the period 2004-2008 | ||
Proportion is regarded fixed in time and estimated from the period 2004-2008 | Incidence rates are considered fixed at the values observed in 2008 | Scenario 1 | Scenario 2 |
Incidence rates are modelled in time using the age-drift Poisson regression model | Scenario 3 | Scenario 4 | |
Proportion observed in the period 2004-2008 is extrapolated forward in time using a logistic regression model | Incidence rates are considered fixed at the values observed in 2008 | Scenario 5 | Scenario 6 |
Incidence rates are modelled in time using the age-drift Poisson regression model | Scenario 7 | Scenario 8 | |