Table 3.
Multivariable analysis of sociodemographic and clinical features associated with respiratory virus positivity or influenza positivity, southern Sri Lanka, 2013–2015
| Characteristic | Respiratory virus positive vs. negative |
Influenza positive vs. other respiratory virus positive |
||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Male sex | 1.48 (1.02–2.17) | 0.04 | – | – |
| Child (< 5 years) | 0.45 (0.26–0.78) | 0.005 | 0.33 (0.17–0.62) | 0.001 |
| Sick contact | 1.86 (1.27–2.73) | 0.001 | 1.84 (1.14–2.97) | 0.01 |
| Number of days of cough | 0.79 (0.70–0.90) | < 0.001 | – | – |
| Pain with breathing | 2.60 (1.39–4.89) | 0.003 | 3.04 (1.12–8.24) | 0.03 |
| Anorexia | 2.29 (1.50–3.50) | < 0.001 | 2.20 (1.32–3.66) | 0.002 |
| Fatigue | 2.00 (1.28–3.13) | 0.002 | – | – |
| Arthralgias | – | – | 1.82 (1.09–3.05) | 0.02 |
CI = confidence interval; OR = odds ratio. In each model, age (categorical variable) and sociodemographic characteristics and clinical symptoms associated with the dependent variable at a P < 0.05 on bivariable analysis were included.