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Volume 17, Number 6—June 2011
Research

Invasive Group A Streptococcal Infection and Vaccine Implications, Auckland, New Zealand

Atheer Safar, Diana LennonComments to Author , Joanna Stewart, Adrian Trenholme, Dragana Drinkovic, Briar Peat, Susan Taylor, Kerry Read, Sally Roberts, and Lesley Voss
Author affiliations: Author affiliations: Auckland City Hospital, Auckland, New Zealand (A. Safar, S. Roberts); The University of Auckland, Auckland (D. Lennon, J. Stewart); Kidz First Children’s Hospital/Middlemore Hospital, Auckland (A. Trenholme); North Shore Hospital, Auckland (D. Drinkovic, K. Read); The University of Auckland/Middlemore Hospital, Auckland (B. Peat); Middlemore Hospital, Auckland (S. Taylor); Starship Children’s Hospital, Auckland (L. Voss)

Main Article

Table 1

Population-based incidence of invasive group A streptococcal disease, by age, Auckland, New Zealand, 2005–2006*

Population Age group, y
<1
 <15
 <50
 >65
 All ages
No. Rate No. Rate No. Rate No. Rate No. Rate
Maori and Pacific Islander 11 20.3 27 13.0 74 80.1 30 113.0 139 20.4
Maori 8 40.9 14 14.1 33 82.5 15 146.8 69 21.6
Pacific Islander
 3
 16.4
13
 12.0
41
 78.2
15
 91.8
70
 19.3
Other
 2
 4.1
9
 2.4
53
 8.9
36
 15.0
84
 5.3
Total 13 33.0 36 6.1 127 18.4 66 24.4 225 8.1

*Rate/100,000 population. Table includes only populations at risk. Use of a Poisson regression model indicated no evidence of a difference in the effect of ethnicity on risk in different age groups. The incidence rate ratios for all ages of Maori compared with others was 7.60 (95% confidence interval [CI] 5.10–11.32) and for Pacific Islanders compared with others was 8.84 (95% CI 6.17–12.65). For male vs. female, the incidence rate ratio was 1.29 (95% CI 0.96–1.74).

Main Article

Page created: August 03, 2011
Page updated: August 03, 2011
Page reviewed: August 03, 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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