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Volume 16, Number 9—September 2010

Research

All-Cause Mortality during First Wave of Pandemic (H1N1) 2009, New South Wales, Australia, 2009

David J. MuscatelloComments to Author , Michelle A. Cretikos, and C. Raina MacIntyre
Author affiliations: Author affiliations: New South Wales Department of Health, North Sydney, New South Wales, Australia (D.J. Muscatello, M.A. Cretikos); University of New South Wales, Kensington, New South Wales, Australia (D.J. Muscatello, C.R. MacIntyre); University of Sydney, Sydney, New South Wales, Australia (M.A. Cretikos)

Main Article

Table 3

All-age differences between observed and baseline all-cause death rates* and counts, and predominant influenza virus strains, by year, New South Wales, Australia, January 2003–September 2009

Year Crude rate (95% CI) Standardized† rate (95% CI) No. (95% CI) Predominant strain(s)
2003 10.0 (7.3 to 12.6) 11.1 (6.3 to 16.0) 666 (488 to 843) A/Fujian/411/2002 (H3N2)-like
2004 7.2 (5.3 to 9.1) 8.0 (4.5 to 11.6) 482 (352 to 612) A/Fujian/411/2002 (H3N2)-like
2005 –6.4 (–8.4 to –4.3) –6.9 (–10.6 to –3.1) –432 (–571 to –294) A/California/7/2004 (H3N2)-like
2006 –4.3 (–6.4 to –2.2) –4.5 (–8.3 to –0.6) –291 (–433 to –149) B/Malaysia/2506/2004-like (Victoria lineage)
2007 7.3 (5.3 to 9.2) 7.5 (3.8 to 11.1) 502 (366 to 638) A/Brisbane/10/2007 (H3N2)-like, A/Solomon Islands/3/2006 (H1N1)-like
2008 8.6 (6.5 to 10.6) 8.8 (5.0 to 12.5) 600 (457 to 742) B/Florida/4/2006-like (Yamagata lineage)
2009 –6.0 (–8.9 to –3.1) –6.0 (–11.5 to –0.6) –423 (–630 to –217) A/California/7/2009 (H3N2)-like, A/Brisbane/10/2007 (H3N2)-like

*Rates are per 100,000 population. CI, confidence interval.
†Age standardized by using the 2009 mid-year age-specific population estimates as the standard population.

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