Volume 13, Number 12—December 2007
Risk Factors for West Nile Virus Neuroinvasive Disease, California, 2005
|Characteristic||WNF, no. (%)||WNND, no. (%)||Odds ratio||95% Confidence interval|
|Diabetes||39 (11)||60 (34)||4.15||2.63–6.55|
|Age >64 y||94 (18)||99 (32)||2.24||1.62–3.11|
|Hypertension||105 (29)||83 (46)||2.08||1.44–3.01|
|Male sex||270 (51)||188 (62)||1.57||1.18–2.09|
*WNND, West Nile neuroinvasive disease; WNF, West Nile fever.
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