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Influenza-attributable excess winter mortality (EWDs) in the elderly.
| Authors | Country | Age-class | Years | Prevalence of EWDs attributable to influenza | Influenza virus type |
|---|---|---|---|---|---|
| USA | ≥ 75 years | 1997-2009 | 71% | A(H3N2) | |
| A(H3N2) | USA | ≥ 75 years | 1997-2009 | 50-95% (during all seasons) | B |
| Nielsen et al. [9] | Denmark | ≥ 65 years | 1994-2010 | 82% | A(H3N2) |
| Thiberville et al. [8] | France | ≥ 65 years | 1999-2010 | 6.27 to 13.23 (per 100,000 inhab) | A(H3N2) |
