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Volume 18, Number 4—April 2012

Dispatch

Subclinical Infections with Crimean-Congo Hemorrhagic Fever Virus, Turkey

Hürrem BodurComments to Author , Esragül Akinci, Sibel Ascioglu, Pinar Öngürü, and Yavuz Uyar
Author affiliations: Ankara Numune Education and Research Hospital, Ankara, Turkey (H. Bodur, E. Akinci, P. Öngürü); Hacettepe University Medical School, Ankara (S. Ascioglu); Refik Saydam National Public Health Agency, Ankara (Y. Uyar)

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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.

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