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Volume 17, Number 7—July 2011


Epidemiology of Influenza-like Illness during Pandemic (H1N1) 2009, New South Wales, Australia

David J. MuscatelloComments to Author , Margo Barr, Sarah V. Thackway, and C. Raina MacIntyre
Author affiliations: Author affiliations: New South Wales Department of Health, North Sydney, New South Wales, Australia (D.J. Muscatello, M. Barr, S. Thackway); University of New South Wales, Kensington, New South Wales, Australia (D.J. Muscatello, C.R. MacIntyre); University of Wollongong, Wollongong, New South Wales, Australia (M. Barr)

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Table 2

Influenza–like illness incidence, New South Wales, Australia, July–September 2009*

Group Incidence, % (95% CI)
M 19.5 (13.8–25.2)
26.9 (20.4–33.4)
Age group, y
0–15 33.3 (24.7–42.0)
16–34 27.6 (15.6–39.6)
35–49 21.3 (13.9–28.8)
50–64 19.1 (11.9–26.2)
5.1 (2.4–7.9)
Urban 22.3 (16.8–27.8)
Rural 26.2 (18.4–34.0)

*Data from 2,909 New South Wales Population Health Survey respondents. Influenza-like illness defined as fever with cough and fatigue. CI, confidence interval.

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