Volume 17, Number 9—September 2011
Research
Differential Effects of Pandemic (H1N1) 2009 on Remote and Indigenous Groups, Northern Territory, Australia, 2009
James McCracken Trauer
, Karen Louise Laurie, Joseph McDonnell, Anne Kelso, and Peter Gregory Markey
, Karen Louise Laurie, Joseph McDonnell, Anne Kelso, and Peter Gregory Markey
Table 2
Specimens with titers >40 in a study of differential effects of pandemic (H1N1) 2009 on remote and indigenous groups, Northern Territory, Australia, September 2009*
| Population group |
No. positive/ no. tested |
% Titers >40
(95% CI) |
| Baseline, age, y | ||
| <14 | 0/37 | 0 |
| 15–34 | 4/91 | 4.4 (0.1–8.6) |
| 35–54 | 8/92 | 8.7 (2.9–14.5) |
| >55 |
22/225 |
9.8 (5.9–13.7) |
| Urban Darwin, age, y | ||
| <14 | 22/60 | 36.7 (24.3–49.0) |
| 15–34 | 34/194 | 17.5 (12.2–22.9) |
| 35–54 | 23/202 | 11.4 (7.0–15.8) |
| >55 |
20/209 |
9.6 (5.6–13.6) |
| Rural Top End, age, y | ||
| <14 | 5/25 | 20.0 (4.0–36.0) |
| 15–34 | 46/190 | 24.2 (18.1–30.3) |
| 35–54 | 31/183 | 16.9 (11.5–22.4) |
| >55 |
35/190 |
18.4 (12.9–24.0) |
| Central Australia, age, y | ||
| <14 | 7/13 | 53.9 (25.6–82.1) |
| 15–34 | 23/84 | 27.4 (17.8–37.0) |
| 35–54 | 50/189 | 26.5 (20.1–32.8) |
| >55 | 33/150 | 22.0 (15.3–28.7) |
*CI, confidence interval.
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Page updated: September 06, 2011
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