| Univariate analysis | Multivariate analysis | ||||||
---|---|---|---|---|---|---|---|---|
Characteristics | No. positive/No. tested | (%) | Odds ratio | 95% CI | P value | Adjusted OR | 95% CI | P value |
Gender | Â | |||||||
 Male | 87/586 | (14.9) | 1.00 | Referent | - | 1.00 | Referent | - |
 Female | 155/805 | (19.3) | 1.37 | 1.03,1.82) | 0.0327 | 0.90 | (0.64,1.25) | 0.5221 |
Age group (y) | Â | Â | Â | Â | <.0001 | Â | Â | <.0001 |
 20–34 | 26/510 | (5.1) | 1.00 | Referent | - | 1.00 | Referent | - |
 35–49 | 36/344 | (10.5) | 2.18 | (1.29,3.68) | 0.0037 | 1.57 | (0.89,2.76) | 0.1174 |
 50–64 | 80/330 | (24.2) | 5.96 | (3.73,9.51) | <.0001 | 2.98 | (1.65,5.37) | 0.0003 |
 ≥65 | 100/207 | (48.3) | 17.40 | (10.77,28.10) | <.0001 | 10.03 | (5.42,18.58) | <.0001 |
Place | Â | Â | Â | Â | <.0001 | Â | Â | <.0001 |
 West Central District | 92/226 | (40.7) | 14.19 | (7.93,25.40) | <.0001 | 4.98 | (2.49,9.99) | <.0001 |
 North District | 39/175 | (22.3) | 5.93 | (3.16,11.11) | <.0001 | 2.15 | (1.02,4.53) | 0.0433 |
 East District | 81/363 | (22.3) | 5.94 | (3.34,10.54) | <.0001 | 1.71 | (0.84,3.50) | 0.1410 |
 Factory in Yongkang | 15/302 | (5.0) | 1.08 | (0.52,2.25) | 0.8368 | 1.01 | (0.48,2.12) | 0.9797 |
 Factory in Annan | 15/325 | (4.6) | 1.00 | Referent | - | 1.00 | Referent | - |
Family diagnosed with dengue at any time | ||||||||
 No | 205/1289 | (15.9) | 1.00 | Referent | - | 1.00 | Referent | - |
 Yes | 37/102 | (36.3) | 3.01 | (1.96,4.63) | <.0001 | 2.07 | (1.25,3.43) | 0.0045 |