Volume 17, Number 9—September 2011
Research
Epidemiologic Modeling with FluSurge for Pandemic (H1N1) 2009 Outbreak, Queensland, Australia
Table
Modeling attempts for pandemic (H1N1) 2009, Metro North Health Service District, Queensland, Australia, 2009*
Variable |
FluSurge 2.0 |
Modified model |
Parameter and assumption/source | ||
Population | 812,941 | 812,941 |
Gross attack rate | 25% | 15% |
Hospitalization rate | Default | 0.5% |
Duration of hospitalization | 12 wk | 14 wk |
Proportion of patients needing ICU care | 20% | 10% |
Proportion of patients needing ventilation | 15% | 7.5% |
Average length of non-ICU hospitalization | 5 d | 5 d |
Average length of ICU stay | 10 d | 10 d |
Average length of ventilator usage | 10 d | 10 d |
Available hospital resources |
Private and public hospitals |
Public hospitals only |
Main output | ||
Hospital admissions | 2,840 (range 1,104–3,810) | 610 |
Patients needing general beds only | – | 549 |
Patients needing ICU care | – | 61 |
ICU patients needing ventilator care | – | 46 |
Bed demands/availability during peak week | ||
General | 9% | 2% |
ICU | 83% | 10% |
Ventilator | 117% | 13% |
*ICU, intensive care unit; –, not applicable.