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Volume 16, Number 12—December 2010

Research

Alkhurma Hemorrhagic Fever in Humans, Najran, Saudi Arabia

Abdullah G. Alzahrani, Hassan M. Al Shaiban, Mohammad A. Al Mazroa, Osama Al-Hayani, Adam MacNeil, Pierre E. Rollin, and Ziad A. MemishComments to Author 
Author affiliations: Author affiliations: Ministry of Health, Riyadh, Saudi Arabia (A.G. Alzahrani, H.M. Al Shaiban, M.A. Al Mazroa, O. Al-Hayani, Z.A. Memish); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A. MacNeil, P.E. Rollin)

Main Article

Table 4

Multivariate logistic regression results of risk factors for Alkhurma hemorrhagic, Najran, Saudi Arabia, 2006–2009*

Risk factor Crude OR (95% CI) Model aOR† (95% CI)
Contact with domestic animals 5.39
(1.74–17.3) 3.17
(0.96–10.43)
Tick bites 11.48
(2.51–59.73) 6.20
(1.34–28.70)
Adjacent farm distance 4.00
(1.40–11.75) 3.63
(1.25–10.49)

*OR, odds ratio; CI, confidence interval; aOR, adjusted OR.
†aOR for risk factors (contact with domestic animals, tick bites, adjacent farm distance) after elimination of nonsignificant variables (drinking unpasteurized milk and owning or raising domestic animals) calculated by using backward stepwise strategy.

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