Table 12:
Cost–Utility Analysis: Individual or Group CBT After the Exclusion of Dominated Strategiesa
| Strategy | Mean Costs, $ (95% CrI) | Mean QALYs (95% CrI) | Incremental Costs, $b (95% CrI) | Incremental QALYsc (95% CrI) | ICER: $/QALY gained |
|---|---|---|---|---|---|
| Usual care | 16,157.79 (9,936; 24,254) |
3.460 (2.56; 4.29) |
|||
| Group CBT by nonphysician | 16,558.54 (10,789; 24,079) |
3.568 (2.74; 4.33) |
400.75 (−1,177; 1,665) |
0.1079 (0.03;0.22) |
3,715 |
| Individual CBT by nonphysician | 19,325.80 (13,669; 26,697) |
3.582 (2.76; 4.34) |
2,767.26 (1,179; 4,822) |
0.0144 (0.0001;0.04) |
192,618 |
Abbreviations: CBT, cognitive behavioural therapy; CrI, credible interval; ICER, incremental cost-effectiveness interval; QALY, quality-adjusted life-year.
a
All costs in 2017 Canadian dollars. All costs and effects were discounted at 1.5%.
b
Incremental cost = average cost (strategy individual CBT) – average cost (strategy group CBT).
c
Incremental effect = average effect (strategy individual CBT) – average effect (strategy group CBT).
Note: Results may appear incorrect because of rounding.