Table 1 Worked example of steps in economic evaluation
Step | Low fire-risk | Medium fire-risk | High fire-risk | Total |
|---|---|---|---|---|
A. Allocate dwellings across Dundee by risk reported from 4,641 Risk Assessments | 58,933 (80%) | 11,990 (16%) | 2,978 (4%) | 73,901 |
B. Number of fires from SIMD analysis of postcodes | 44 | 74 | 151 | 269 |
C. Probability of fire (B/A) | 0.075% | 0.617% | 5.071% | 0.364% |
D. Allocate 500 dwellings using fire risk pre Service | 78 (16%) | 153 (30%) | 269 (54%) | 500 |
E. Estimate number of fires (C*D) | 0.06 | 0.94 | 13.62 | 14.63 |
F. Allocate 500 dwellings using fire risk post Service | 280 (56%) | 26 (5%) | 194 (39%) | 500 |
G. Estimate number of fires post-Service (F*C) | 0.21 | 0.16 | 9.84 | 10.21 |
H. Estimate fires saved (E-G) | - 0.15 | 0.78 | 3.78 | 4.42 |
I. Savings (H* £32,390) | -£4873 | £25360 | £122573 | £143061 |
J. Saving per client I/500 | £286 | |||
K. Cost per client | £55 | |||
L. Net savings per client (J-K) | £231 |