Parameter | Values | References |
---|---|---|
Clinical inputs | ||
Influenza vaccine coverage (≥65 years) | 39.1% | 15 |
TIV vaccine effectiveness against influenza B (2001–2010) | 0.45-0.75 | 7-14 |
Reduction in TIV influenza B vaccine effectiveness against TIV-unmatched influenza B lineage | 30% | 6 |
Influenza B hospitalization rate (2001–2010) by age group (per 100,000): | 1 | |
65-79 years | 1-40.8 | |
≥ 80 years | 0-222.1 | |
Hong Kong population (2001−2010) by age group: | 24 | |
65-79 years | 600,986-665,642 | |
≥ 80 years | 146,066-257,966 | |
Influenza B lineage in circulation (2001−2010) | 1 | |
Yamagata | 5.3%-96.3% | |
Victoria | 3.7-94.7% | |
Case-fatality ratio | 0.05% | 5 |
Percent of inpatient cases with ICU admission: | 2.4% | 4 |
Mortality rate of influenza B in ≥65 years inpatient cases | 5.9% | 1 |
Utility | ||
Utility score for >65 years | 0.84 | 25 |
Utility loss | 16-22 | |
Outpatient care | 0.40 | |
Hospitalization without ICU care | 0.50 | |
Hospitalization with ICU care | 0.62 | |
Life expectancy in Hong Kong (years) | 83 | 24 |
Cost (USD)* | ||
Cost of outpatient clinic (per visit) | 49 | 26 |
Number of clinic visit for patients without hospitalization | 1 | Assumption |
Cost of hospitalization without ICU care (per day) | 600 | 26 |
Cost of hospitalization with ICU care (per day) | 2,949 | 26 |
Length of illness (days) | ||
Outpatient care | 7 | 23 |
Hospitalization (length of stay) | 10.8 | 4 |
Caregiver salary per day | 47 | 24 |
Labor force rate | 68% | 24 |
Unemployment rate | 3.7% | 24 |