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Volume 7, Number 4—August 2001
THEME ISSUE
West Nile Virus
West Nile Virus

Clinical Characteristics of the West Nile Fever Outbreak, Israel, 2000

Michal Y. Chowers*Comments to Author , Ruth Lang*, Faris Nassar†, Debora Ben-David‡, Michael Giladi§, Eitan Rubinshtein‡, Avi Itzhaki¶, Josef Mishal#, Yardena Siegman-Igra§, Ruth Kitzes**, Neora Pick††, Zvi Landau‡‡, Dana Wolf§§, Hanna Bin¶¶, Ella Mendelson¶¶, Silvio D. Pitlik##, and Miriam Weinberger##
Author affiliations: *Meir Medical Center, Kfar Sava, Israel; †Western Galilee Hospital, Nahariya, Israel; ‡Chaim Sheba Medical Center, Tel Hashomer, Israel; §Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel; ¶Assaf Harofeh Medical Center, Zrifin, Israel; #Barzilai Medical Center, Ashkelon, Israel; **Carmel Medical Center, Haifa, Israel; ††Bnei-Zion Medical Center, Haifa, Israel; ‡‡Kaplan Medical Center, Rehovot, Israel; §§Hadassah Medical Center, Jerusalem, Israel; ¶¶Public Health Services, Ministry of Health, Tel Hashomer, Israel; ##Rabin Medical Center, Belinson Campus, Petach Tikva, Israel

Main Article

Table 3

Variables entered into the multivariate regression analysis

Alive
 Dead
 ORa
 p
Variables 200 (%) 33 (%) (95% CI) valueb
Age >70 70 (35.0) 29 (87.9) 13.5 (4.5-39.8) 0.0001
No coexisting condition or illness 53 (26.5) 2 (6) 0.2 (0.1-0.9) 0.03
Diabetes mellitus 31 (15.5) 9 (27.3) 2.0 (0.9-4.8) 0.1
Ischemic heart disease 29 (14.5) 9 (27.3) 2.2 (0.9-5.2) 0.07
Temp (mean +/-SD) 39.1 +/-
0.7 39.3
+/-0.64 1.6 (0.9-2.7) 0.08
Headache 123 (61.5) 12 (36.4) 0.4 (0.2-0.9) 0.02
Confusion 68 (34.0) 24 (72.7) 5.2 (2.2-11.7) 0.0001
Change in level of consciousness 80 (40) 29 (87.9) 15.3
(4.5-51.9) 0.0001
Hb<12 g/dL in F 72 (36) 19 (57.5) 3.0 (1.4-6.7) 0.006
Hb<13.5 g/dL in M
PLT<140 K/mL 25 (12.5) 8 (24.2) 2.1 (0.8-4.6) 0.1
Ribavirin therapy 22 (11.0) 15 (45.4) 6.7 (3.0-15.2) 0.0001

aSD = standard deviation; OR = odds ration; CI = confidence intervals; Hb = hemoglobin; PLT = platelets.
bOnly factors included were those that were significant with p<0.15 by bivariate regression analysis, were available in more than 92% of the cases, and occurred in more than 10% of the cases.

Main Article

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Page updated: April 27, 2012
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