Table 1.
Baseline model parameters
| Variable | Value (range)
|
Source | |
|---|---|---|---|
| Age 5–64 years | Age ≥65 years | ||
| Probability of contracting influenza | 0.06 (0.01, 0.15) | 0.09 (0.02, 0.20) | Prosser et al15 |
| Reduction in influenza outcomes due to vaccination | 0.69 (0.42, 0.90) | 0.60 (0.29, 0.87) | Prosser et al15 |
| Baseline outcome counts (per 100,000) | |||
| Influenza-related physician office visits | 134.11 (131.95, 136.30) | 225.21 (219.00, 235.50) | Kwong et al7 |
| Influenza-related emergency department visits | 24.89 (23.98, 25.83) | 101.34 (97.19, 105.58) | Kwong et al7 |
| Influenza-related hospitalizations | 10.88a (10.27, 11.51) | 115.07a (110.64, 119.58) | Public Health Ontario12–14 |
| Influenza-related deaths | 0.49a (0.36, 0.63) | 12.13a (0.12, 0.14) | Public Health Ontario12–14 |
| Productivity | |||
| Proportion of individuals who are employed | 0.63 (0.62, 0.64) | 0.13 (0.12, 0.14) | Statistics Canada20 |
| Proportion of vaccinations that result in time taken off work (by provider)b | Pharmacist: 0% (0%, 50%) | Assumption | |
| Physician: 100% (100%, 50%) | Assumption | ||
| Others: 50% (100%, 50%) | Region of Waterloo Public Health18,19 | ||
| Hours taken off work per vaccination | 2 (0.5, 3.0) | Ray et al21 | |
| Proportion of influenza cases that result in time off workb | 1.0 (0.5, 1.0) | Assumption | |
| Hours taken off work per influenza case | 1410,18 | Schanzer et al22 | |
| Average hourly wage ($) | 26.11 (13.31, 38.90) | Statistics Canada32 | |
| Health care resource unit costs ($) | |||
| Physician office visit | 36 (21.11, 54.60) | Sander et al16 | |
| Emergency room visit | 229 (132, 354) | Sander et al16 | |
| Influenza hospitalization | 6,689 (3,870, 10,342) | Sander et al16 | |
Notes:
a
Average of 2012/13, 2013/14, and 2014/15.
b
Among individuals who are employed.