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Multivariate analysis of characteristics and their RR of influenza-like illness
| Characteristic | Multivariate RR (95% Cl) | Multivariate P-value |
|---|---|---|
| Doxycycline | 0.65 (0.43–0.99) | 0.046 |
| Female | 1.57 (1.24–1.98) | < 0.01 |
| Median duration of travel (days) | 1.01 (1.0–1.01) | < 0.01 |
| Asia | 1.37 (1.08–1.75) | 0.01 |
| Military travel | 0.30 (0.21–0.43) | < 0.01 |
| Cruise | 2.21 (1.73–2.83) | < 0.01 |
RR = relative risk.
