Table 3 Results of PM2.5and quit rate
Base-case analysis (with imputed data) | Complete case analysis | |||||||
|---|---|---|---|---|---|---|---|---|
Intervention | Usual Care | Difference (95% CI) | P-value | Intervention | Usual care | Difference (95% CI) | P-value | |
No. of households | n = 102 | n = 102 | n = 204 | n = 90 | n = 82 | n = 172 | ||
Cost (SD) | £328 (£151) | £45 (£20) | £283 (£254 to £313) | < 0.001 | £331 (£149) | £46 (£21) | £285 (£252 to £318) | < 0.001 |
Reduction in PM2.5 (ug/m3) (SD) | 22.1 (65.2) | 0.5 (52.0) | 21.6 (5.4 to 37.9) | 0.0096 | 24.0 (58.9) | 0.9 (52.4) | 23.2(6.3 to 40.0) | 0.007 |
Reduction in PM2.5 (10μg/m3) (SD) | 2.21 (6.52) | 0.05 (5.20) | 2.16 (0.54 to 3.79) | 0.0096 | 2.40 (5.89) | 0.09 (5.24) | 2.32 (0.63 to 4.0) | 0.007 |
ICER (bootstrapped 95% CI) | £131 (£72 to £467) | £121 (£70 to £471) | ||||||
No. of households | n = 102 | n = 102 | n = 204 | n = 95 | n = 93 | n = 188 | ||
Cost (SD) | £328 (£151) | £45 (£20) | £283 (£254 to £313) | < 0.001 | £331 (£148) | £44 (£21) | £286 (£256 to £317) | < 0.001 |
Quit rate (%)(SD) | 8.0% (27.0%) | 4.3% (19.6%) | 3.7% (−2.8% to 10.2%) | 0.2614 | 8.4% (27.9%) | 4.3% (20.4%) | 4.1% (−2.9% to 11.2%) | 0.248 |
ICER (bootstrapped 95% CI) | £71 (−£57 to £309) | £72 (−£22 to £313) | ||||||