gsgs
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http://knol.google.com/k/marc-lipsi...r/16?collectionId=28qm4w0q65e4w.1&position=1#
we estimated
sCFR of 0.045% (95% credible interval CI 0.020%-0.090%),
sCIR of 0.222% (0.105%-0.425%),
and sCHR of 1.37% (0.68%-2.52%).
Using self-reported ILI, we obtained estimates approximately 6-9x lower. sCFR was highest in the 18-64 age group, and sCIR and sCHR highest in the 18-64 or 0-4 age group depending on the approach.
0.045% : sCFR = symptomatic case-fatality ratio
0.222% : sCIR = ratio of symptomatic cases that required ICU=intensive care unit ,
1.370% : sCHR = ratio of symptomatic cases that required hospitalization
Conclusions
These estimates suggest that an autumn-winter pandemic wave of pH1N1 with comparable severity per case could lead to a number of deaths in the range from considerably below that associated with seasonal influenza to slightly higher, but with greatest impact in young children and non-elderly adults. These estimates of impact depend on assumptions about total incidence of infection and would be larger if incidence of symptomatic infection were higher or shifted toward adults, if viral virulence increased, or if suboptimal treatment resulted from stress on the health care system; numbers would decrease if the proportion infected or symptomatic were lower.
we estimated
sCFR of 0.045% (95% credible interval CI 0.020%-0.090%),
sCIR of 0.222% (0.105%-0.425%),
and sCHR of 1.37% (0.68%-2.52%).
Using self-reported ILI, we obtained estimates approximately 6-9x lower. sCFR was highest in the 18-64 age group, and sCIR and sCHR highest in the 18-64 or 0-4 age group depending on the approach.
0.045% : sCFR = symptomatic case-fatality ratio
0.222% : sCIR = ratio of symptomatic cases that required ICU=intensive care unit ,
1.370% : sCHR = ratio of symptomatic cases that required hospitalization
Conclusions
These estimates suggest that an autumn-winter pandemic wave of pH1N1 with comparable severity per case could lead to a number of deaths in the range from considerably below that associated with seasonal influenza to slightly higher, but with greatest impact in young children and non-elderly adults. These estimates of impact depend on assumptions about total incidence of infection and would be larger if incidence of symptomatic infection were higher or shifted toward adults, if viral virulence increased, or if suboptimal treatment resulted from stress on the health care system; numbers would decrease if the proportion infected or symptomatic were lower.