Table 22:
Sensitivity Analysis, Sequential Approach: Increased Recovery Rate With Guided iCBT
| Strategy | Mean Costs, $a,b | Mean QALYs | Incremental Costs, $b,c | Incremental QALYsd | ICER, $/QALY Gainedb |
|---|---|---|---|---|---|
| Unguided iCBT | 274.62 | 0.777 | — | — | — |
| Usual care | 409.40 | 0.787 | 134.78 | 0.009 | 14,644 |
| Guided iCBT | 1,660.09 | 0.838 | 1,278.64 | 0.051 | 25,110 |
| Group CBT | 1,688.05 | 0.817 | — | — | Dominated |
| Individual CBT | 2,657.27 | 0.827 | — | — | Dominated |
Abbreviations: CBT, cognitive behavioural therapy; iCBT, internet-delivered CBT; ICER, incremental cost-effectiveness ratio; QALY, quality-adjusted life-year.
a
Costs estimated in Table 16, additional societal costs associated with in-person CBT of $1,244.
b
All costs in 2018 Canadian dollars. No discounting was done because of the 12-month time horizon.
c
Incremental cost = average cost (strategy of guided CBT) – average cost (strategy of usual care).
d
Incremental effect = average effect (strategy of guided CBT) – average effect (strategy of usual care).
Note: Results may appear incorrect because of rounding.