Table 3 Sensitivity analysis results
Intervention* | Expected QALYs | Expected costs (£s) | Incremental QALYs | Incremental costs (£s) | ICER (£s) | Probability CE (£30,000) | Probability CE (£50,000) |
|---|---|---|---|---|---|---|---|
SA1: prevalence of smoke alarms in households of 50% | |||||||
(1) UC | 25,056.054 | 20,813 | ---- | ---- | ---- | 0.987 | 0.984 |
(25038.86 to 25073.69) | (8337 to 43726) | ||||||
(2) E | 25,056.070 | 23,732 | 0.016 | 2,919 | 180,400 | 0.000 | 0.000 |
(25038.88 to 25073.71) | (11327 to 46646) | ||||||
(3) E + FE | 25,056.079 | 25,715 | 0.009 | 1,983 | 225,545 | 0.013 | 0.015 |
(25038.88 to 25073.72) | (13029 to 48245) | ||||||
(7) E + FE + F + HI | 25,056.081 | 37,863 | 0.002 | 12,148 | 5,955,269 | 0.000 | 0.000 |
(25038.89 to 25073.72) | (18872 to 61155) | ||||||
SA2: probability of accepting the intervention of 50% | |||||||
(1) UC | 25,056.159 | 19,470 | ---- | ---- | ---- | 0.238 | 0.086 |
(25038.67 to 25074.24) | (7948 to 40486) | ||||||
(3) E + FE | 25,056.177 | 19,695 | 0.018 | 225 | 12,701 | 0.762 | 0.914 |
(25038.69 to 25074.26) | (8618 to 39932) | ||||||
(7) E + FE + F + HI | 25,056.177 | 21,656 | 0.000 | 1,961 | 3,502,138 | 0.000 | 0.000 |
(25038.7 to 25074.26) | (10383 to 42046) | ||||||
SA3: null decay of safety equipment | |||||||
(1) UC | 25,056.404 | 18,839 | ---- | ---- | ---- | 0.960 | 0.817 |
(25039.07 to 25073.81) | (7684 to 39507) | ||||||
(2) E | 25,056.413 | 19,530 | 0.009 | 691 | 80,117 | 0.038 | 0.171 |
(25039.08 to 25073.82) | (8558 to 39944) | ||||||
(3) E + FE | 25,056.416 | 20,094 | 0.003 | 564 | 209,061 | 0.001 | 0.012 |
(25039.09 to 25073.81) | (9193 to 40546) | ||||||
(7) E + FE + F + HI | 25,056.417 | 23,596 | 0.001 | 3,502 | 3,466,635 | 0.000 | 0.000 |
(25039.09 to 25073.82) | (12021 to 44319) | ||||||
SA4: considering 1.8 children per household | |||||||
(1) UC | 44,349.503 | 32,867 | ---- | ---- | ---- | 0.114 | 0.029 |
(44318.77 to 44380.1) | (12272 to 71150) | ||||||
(3) E + FE | 44,349.544 | 33,050 | 0.041 | 183 | 4,456 | 0.885 | 0.968 |
(44318.82 to 44380.14) | (13428 to 69595) | ||||||
(7) E + FE + F + HI | 44,349.546 | 36,531 | 0.002 | 3,481 | 1,923,416 | 0.000 | 0.000 |
(44318.83 to 44380.14) | (16836 to 73296) | ||||||
SA5: same probability of injury for households with functioning and non-functioning smoke alarms | |||||||
(1) UC | 25,056.511 | 15,279 | ---- | ---- | ---- | 0.960 | 0.943 |
(25039.23 to 25073.87) | (6611 to 31524) | ||||||
(3) E + FE | 25,056.519 | 16,562 | 0.008 | 1,283 | 154,513 | 0.040 | 0.057 |
(25039.24 to 25073.88) | (7924 to 32584)) | ||||||
(7) E + FE + F + HI | 25,056.520 | 20,080 | 0.001 | 3,518 | 9,772,579 | 0.000 | 0.000 |
(25039.23 to 25073.88) | (10842 to 35798) | ||||||