Table 3. Multivariate logistic regression for exposures associated with titer >40 in a study of differential effects of pandemic (H1N1) 2009 on remote and indigenous groups, Northern Territory, Australia, September 2009.
| Characteristic | Odds ratio (95% confidence interval) | p value |
|---|---|---|
| Female sex | 1.06 (0.82–1.37) | 0.65 |
| Aboriginal and Torres Strait Islander |
2.32 (1.63–3.31) |
<0.001 |
| Age, y | <0.001 | |
| >55 | Reference | |
| 35–54 | 1.05 (0.76–1.45) | |
| 15–34 | 1.28 (0.91–1.79) | |
|
<14 |
2.98 (1.80–4.92) |
|
| Region | 0.05 | |
| Urban Darwin | Reference | |
| Rural Top End | 0.83 (0.56–1.23) | |
| Central Australia |
1.23 (0.80–1.90) |
|
| Socioeconomic quintile* | 0.43 | |
| 5 (least disadvantaged) | Reference | |
| 4 | 0.91 (0.55–1.51) | |
| 3 | 1.16 (0.73–1.86) | |
| 2 | 1.41 (0.84–2.36) | |
| 1 (most disadvantaged) | 1.21 (0.70–2.12) |
*Australian Bureau of Statistics’ Socio-Economic Indexes for Area index of relative socioeconomic advantage and disadvantage.