Table 6.
Sensitivity analyses
| Variable | Sample size | Incremental cost (£) | QALYs gained | Incremental cost per QALY gained (£) |
|---|---|---|---|---|
| Base case* | 149 | 114.50 | 0.027 | 4241 |
| Imputation of QALYs and cost*† | 239 | 122.07 | 0.029 | 4209 |
| Excluding patients permanently unable to work because of low back pain | 142 | 82.06 | 0.039 | 2104 |
| Inclusion of patient costs | 132 | 132.18 | 0.043 | 3074 |
| Inclusion of patient plus lost productivity costs | 129 | −248 | 0.058 | Acupuncture dominant (cost per QALY gained <0) |
QALY=quality adjusted life year.
*
See table 5.
†
Using multiple imputation to predict missing values.