Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 26, Number 6—June 2020
Research

Distribution of Streptococcal Pharyngitis and Acute Rheumatic Fever, Auckland, New Zealand, 2010–2016

Jane OliverComments to Author , Arlo Upton, Susan J. Jack, Nevil Pierse, Deborah A. Williamson, and Michael G. Baker
Author affiliations: Murdoch Children’s Research Institute, Melbourne, Victoria, Australia (J. Oliver); University of Otago Wellington, Wellington, New Zealand (J. Oliver, N. Pierse, M.G. Baker); University of Melbourne, Melbourne (J. Oliver, D.A. Williamson); Labtests Ltd, Auckland, New Zealand (A. Upton); University of Otago, Dunedin, New Zealand (S.J. Jack)

Main Article

Table

Comparison of GAS pharyngitis and ARF rates in the Auckland region, New Zealand, 2014–2016*

Characteristic
GAS pharyngitis in PHCs

GAS pharyngitis in PHCs and schools

Initial ARF hospitalizations
Mean annual incidence†
RR (95% CI)
Mean annual incidence†
RR (95% CI)
Mean annual incidence†
RR (95% CI)
Total
15.7
Referent NA

28.1
Referent NA

0.1
Referent NA
Age group, y
0–4 26.9 2.7 (2.6–2.9) 28.7 2.8 (2.6–2.9) 0.7 0.1 (0.0–0.4)
5–9 82.9 8.2 (7.8–8.6) 204.8 18.1 (17.4–18.9) 17.8 2.5 (1.7–3.8)
10–14 44.3 4.5 (4.2–4.7) 99.7 9.3 (8.9–9.7) 32.5 4.7 (3.3–6.7)
15–19 17.3 1.8 (1.6–1.9) 20.4 2.0 (1.9–2.1) 9.2 1.3 (0.8–2.1)
20–29 9.9 Referent 10.3 Referent 7.1 Referent
30–39 11.1 1.1 (1.1–1.2) 11.5 1.1 (1.0–1.2) 1.7 0.2 (0.1–0.5)
>40
2.5
0.3 (0.2–0.3)

2.6
0.2 (0.2–0.3)

0.0
0.0 (0.0–0.1)
Children age 5–14 y
Total 62.8 Referent NA 150.6 Referent NA 25.0 Referent NA
M 63.3 Referent 153.4 Referent 25.6 Referent
F
62.5
1.0 (1.0–1.0)

147.6
1.0 (0.9–1.0)

23.7
0.9 (0.7–1.3)
Prioritized ethnicity
Māori 79.0 1.3 (1.3–1.4) 248.7 3.4 (3.3–3.5) 35.5 86.9 (11.9–635.0)
Pacific Islander 99.6 1.7 (1.6–1.8) 383.4 4.8 (4.7–5.0) 98.3 240.4 (33.5–1,722.6)
Asian 29.2 0.5 (0.5–0.5) 41.0 0.6 (0.6–0.7) 0.0 0.7 (0.0–18.0)
European/Other
58.3
Referent

66.9
Referent

0.4
Referent
2013 New Zealand Deprivation Index quintile
1 43.5 Referent 45.4 Referent 3.0 Referent
2 39.2 0.9 (0.8–1.0) 45.6 1.0 (0.9–1.1) 2.6 0.9 (0.2–3.8)
3 50.0 1.1 (1.1–1.2) 61.6 1.4 (1.3–1.4) 6.5 2.1 (0.6–7.6)
4 82.4 1.9 (1.7–2.0) 125.7 2.7 (2.5–2.8) 24.7 8.1 (2.8–23.7)
5
103.1
2.3 (2.2–2.5)

427.6
7.7 (7.4–8.1)

76.9
25.2 (9.3–68.5)
Season
Summer 39.3 Referent 77.0 Referent 25.5 Referent
Autumn 62.3 1.6 (1.5–1.6) 185.3 2.3 (2.3–2.4) 32.6 1.3 (0.8–1.9)
Winter 87.9 2.2 (2.2–2.3) 201.7 2.5 (2.5–2.6) 31.9 1.3 (0.9–1.8)
Spring
62.1
1.6 (1.5–1.6)

138.5
1.8 (1.7–1.8)

8.5
0.3 (0.2–0.6)
District health board
Waitemata 54.4 1.0 (0.9–1.0) 67.3 0.8 (0.8–0.9) 13.4 0.6 (0.3–0.9)
Auckland 54.9 Referent 80.1 Referent 24.1 Referent
Countries Manukau 72.1 1.3 (1.2–1.4) 270.9 3.0 (2.9–3.1) 36.8 1.5 (1.0–2.3)

*ARF, acute rheumatic fever; GAS; group A Streptococcus; PHC, primary healthcare clinic; referent NA, referent not available; RR, relative risk.
†Per 1,000 person-years.

Main Article

Page created: May 18, 2020
Page updated: May 18, 2020
Page reviewed: May 18, 2020
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.
file_external