Table. Demographic characteristics and attack rates of all West Nile virus cases reported to the Texas (USA) Department of State Health Services during the 2012 outbreak.
| Characteristic | All cases, no. (%), n = 1,868 | Attack rate*/100,000 population | WNV fever, no. (%), n = 1,024 | WNV neuroinvasive disease, no. (%), n = 844 | Deaths, no. (%), n = 89 |
|---|---|---|---|---|---|
| Sex | |||||
| M | 1,028 (55.0) | 8.1 | 519 (50.7) | 509 (60.3) | 56 (62.9) |
| F | 840 (45.0) | 6.5 | 505 (49.3) | 335 (39.7) | 33 (37.1) |
| Age, y | |||||
| <18 | 70 (3.8) | 1.0 | 42 (4.1) | 28 (3.3) | 0 |
| 18–24 | 71 (3.8) | 2.7 | 42 (4.1) | 29 (3.4) | 0 |
| 25–44 | 439 (23.5) | 6.2 | 283 (27.6) | 156 (18.5) | 5 (5.6) |
| 45–64 | 728 (39.0) | 11.7 | 424 (41.4) | 304 (36.0) | 13 (14.6) |
| >65 | 560 (30.0) | 20.0 | 233 (22.8) | 327 (38.7) | 71 (79.8) |
| Race/ethnicity | |||||
| White, non-Hispanic | 1,273 (68.1) | 11.1 | 738 (72.1) | 535 (63.4) | 54 (60.7) |
| Black | 117 (6.3) | 4.0 | 43 (4.2) | 74 (8.8) | 1 (1.1) |
| White, Hispanic | 318 (17.0) | 3.2 | 134 (13.1) | 184 (21.8) | 22 (24.7) |
| Other/unknown | 160 (8.6) | 11.2 | 109 (10.6) | 51 (6.0) | 12 (13.5) |
*Attack rates based on 2012 population estimates from the Texas State Data Center (3).