Table 11:
Cost–Utility Analysis of Individual or Group CBT Delivered by Different Providers Versus Usual Carea
| Strategy | Mean Costs, $ (95% CrI) | Mean QALYs (95% CrI) | Incremental Costsb, $ (95% CrI) | Incremental QALYsc (95% CrI) | ICER: Strategy vs. Usual Care, $/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 |
| Group CBT by physician | 17,962.64 (12,112; 25,316) |
3.568 (2.74; 4.33) |
1,804.85 (65; 3,516) |
0.1079 (0.03;0.22) |
16,729 |
| Individual CBT by nonphysician | 19,325.80 (13,669; 26,697) |
3.582 (2.76; 4.34) |
3,168.00 (889; 5,624) |
0.1222 (0.03; 0.25) |
25,914 |
| Individual CBT by physician | 21,468.77 (15,223; 29,621) |
3.582 (2.76; 4.34) |
5,310.98 (2,539;8,938) |
0.1222 (0.03; 0.25) |
43,443 |
Abbreviations: CBT, cognitive behavioural therapy; CrI, credible interval; ICER, incremental cost-effectiveness ratio; 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 CBT) – average cost (strategy usual care).
c
Incremental effect = average effect (strategy CBT) – average effect (strategy usual care). Note: Results may appear incorrect because of rounding.