Table 3.
Comaprison of costs to the NHS and EQ‐5D‐5 L utility values between the imputed data and the complete case.
| Analysis | NRT | EC | ||
|---|---|---|---|---|
| n | Mean | n | Mean | |
| Costs to the SSS and NHS | ||||
| In the 6 months before trial | ||||
| Imputed (SE) | 447 | £645 (£109) | 439 | £539 (£62) |
| Complete case (SD) | 204 | £688 (£2811) | 254 | £593 (£1490) |
| In the 12‐month trial period | ||||
| Imputed (SE) | 447 | £915 (£163) | 439 | £1069 (£147) |
| Complete case (SD) | 204 | £1123 (£4621) | 254 | £1156 (£3032) |
| EQ‐5D‐5 L utility | ||||
| Baseline | ||||
| Imputed (SE) | 447 | 0.878 (0.008) | 439 | 0.868 (0.009) |
| Complete case (SD) | 204 | 0.885 (0.162) | 254 | 0.868 (0.193) |
| Six months | ||||
| Imputed (SE) | 447 | 0.882 (0.011) | 439 | 0.888 (0.010) |
| Complete case (SD) | 204 | 0.897 (0.198) | 254 | 0.882 (0.199) |
| Twelve months | ||||
| Imputed (SE) | 447 | 0.887 (0.011) | 439 | 0.898 (0.011) |
| Complete case (SD) | 204 | 0.893 (0.205) | 254 | 0.900 (0.202) |
NHS = National Health Service; NRT = nicotine replacement therapy; EQ‐5D‐5 L = 5‐level EuroQol 5‐dimension; SSS = Stop Smoking Service; SE = standard error; SD = standard deviation.