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Volume 17, Number 7—July 2011
Research

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)

Main Article

Table 7

Effectiveness of seasonal influenza vaccine against influenza-like illness, New South Wales, Australia, July–September 2009*

Subgroup, n = 2,888
Vaccine effectiveness, % (95% CI)†
Age, y
0.5–15 6.1 (−120.1 to 60.0)
16–34 44.6 (−166.8 to 88.5)
35–49 −0.9 (−137.2 to 57.1)
50–64 33.7 (−69.7 to 74.1)
>65
−97.9 (−622.5 to 45.8)
Sex†
M 34.5 (−71.7 to 75.0)
F
10.5 (−49.2 to 46.4)
Region†
Urban 17.1 (−55.7 to 55.9)
Rural
25.5 (−49.7 to 62.9)
Smoking status†
Daily smoker 1.4 (−175.3 to 64.7)
Not daily smoker
22.3 (−53.2 to 60.6)
Body mass index†
Obese 25.0 (−81.6 to 69.1)
Not obese
9.2 (−66.0 to 50.4)
Overall†
20.0 (−30.5 to 51.0)
*For persons >6 mo of age vaccinated in past 12 mo. CI, confidence interval.
†Adjusted for age.

Main Article

Page created: August 15, 2011
Page updated: August 15, 2011
Page reviewed: August 15, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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