Table 1. Characteristics of study population tested for CCHFV, Turkey, January–April 2009*.
| Characteristic | Seronegative, n = 3,201 | Seropositive, n = 356 | p value |
|---|---|---|---|
| Sex | |||
| F | 1,634 (51.0) | 168 (47.2) | 0.167 |
| M | 1,567 (49.0) | 188 (52.8) | |
| Age, y, mean ± SD | 43.38 ± 15.81 | 51.97 ± 17.14 | <0.001 |
| 18–29 | 765 (23.9) | 46 (12.9) | <0.001 |
| 30–39 | 721 (22.5) | 55 (15.4) | |
| 40–49 | 616 (19.2) | 55 (15.4) | |
| 50–59 | 511 (16.0) | 57 (16.0) | |
| 60–69 | 352 (11.0) | 72 (20.2) | |
| ≥70 | 236 (7.4) | 71 (19.9) | |
| Education | |||
| None | 607 (19.0) | 105 (29.7) | <0.001 |
| Elementary school | 1,873 (58.8) | 214 (60.6) | |
| High school or university | 707 (22.2) | 34 (9.6) | |
| Occupation | |||
| Unemployed | 618 (19.5) | 66 (18.9) | <0.001 |
| Farming | 1,186 (37.5) | 174 (49.9) | |
| Animal husbandry | 553 (17.5) | 58 (16.6) | |
| Other† | 809 (25.5) | 51 (14.6) | |
| Persons living in same residence, mean ± SD | 5.01 ± 2.54 | 5.28 ± 2.97 | 0.177 |
| History of hunting | 548 (17.6) | 54 (15.5) | 0.325 |
| History of tick bite | 540 (17.0) | 105 (29.7) | <0.001 |
| Sufficiently informed about CCHFV | 2,269 (71.3) | 261 (73.7) | 0.329 |
*Values are no. (%) unless otherwise indicated. CCHFV, Crimean-Congo hemorrhagic fever virus. †Retired, civil servant, factory, worker, or housewife.