Table 1.
Previous PUUV infection in relation to sex, age group, environment, and region
| Variable (Valid observations) | Subjects within each group | Seropositity for PUUV | Multiple logistic regression | ||
|---|---|---|---|---|---|
| n (% of study population) | n (%) | Odds ratio (OR) | 95 % CIa of OR | ||
| Total study population | 1600 (100 %) | 214 (13.4 %) | - | - | |
| Sex | Women | 789 (49.3 %) | 90 (11.4 %) | 1 | - |
| Men | 811 (50.7 %) | 124 (15.3 %) | 1.40 | 1.05 − 1.88 | |
| Age | 25 − 34 years | 246 (15.4 %) | 12 (4.9 %) | 1 | - |
| 35 − 44 years | 326 (20.4 %) | 22 (6.7 %) | 1.41 | 0.68 − 2.91 | |
| 45 − 54 years | 313 (19.6 %) | 43 (13.7 %) | 3.11 | 1.60 − 6.03 | |
| 55 − 64 years | 354 (22.1 %) | 57 (16.1 %) | 3.74 | 1.96 − 7.14 | |
| 65 − 74 years | 361 (22.6 %) | 80 (22.2 %) | 5.55 | 2.95 − 10.44 | |
| Environmentb (n = 1560) | Urban | 1253 (80.3 %) | 137 (10.9 %) | 1 | - |
| Rural | 307 (19.7 %) | 70 (22.8 %) | 1.92 | 1.38 − 2.67 | |
| Region (n = 1600) | Coast | 1115 (69.7 %) | 136 (12.2 %) | 1 | - |
| Inland | 485 (30.3 %) | 78 (16.1 %) | 1.29 | 0.95 − 1.75 | |
aConfidence interval. b40 subjects could not be classified according to this variable. Significant results are shown in bold formatting