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Volume 11, Number 2—February 2005

Dispatch

Late Recognition of SARS in Nosocomial Outbreak, Toronto

Thomas Wong*†Comments to Author , Tamara Wallington‡, L. Clifford McDonald§, Zahid Abbas*, Michael Christian†, Donald E. Low†, Denise Gravel*, Marianna Ofner*†, Barbara Mederski¶, Lisa Berger‡, Lisa Hansen*, Cheryl Harrison¶, Arlene King*, Barbara Yaffe‡, and Theresa Tam*
Author affiliations: *Health Canada, Ottawa, Ontario, Canada; †University of Toronto, Toronto, Ontario, Canada; ‡Toronto Public Health, Toronto, Ontario, Canada; §Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ¶North York General Hospital, Toronto, Ontario, Canada

Main Article

Table 2

Proportion of patients with late SARS recognition by clinical characteristics, Toronto, hospital X, April 17–June 8, 2003*

Characteristics Late SARS recognition/total SARS (%) RR (95% CI) p value
Postoperative 5.3 (1.8–16.2) 0.001
Yes 8/11 (72.7)
No 3/22 (13.6)
Maximum temperature during hospitalization (°C) 0.8 (0.3–3.1)
1.0
<38.8 5/15 (33.3)
>38.8
6/15 (40.0)
First symptom includes
Fever 1.0 (0.2–5.4) 1.0
   Yes 10/30 (33.3)
   No 1/3 (33.3)
Cough 0.7 (0.2–2.6) 0.7
   Yes 2/8 (25.0)
   No 9/25 (36.0)
Dyspnea 0.4 (0.1–2.4) 0.4
   Yes 1/7 (14.3)
   No 10/26(38.5)
Diarrhea 0.6 (0.1–3.5) 0.6
   Yes 1/5 (20.0)
   No 10/28 (35.7)
Nausea/vomiting 3.2 (1.9–5.4)
0.3
   Yes 1/1 (100)
   No
10/32 (31.3)
Admitted to ICU 1.4 (0.5–3.8) 0.7
Yes 6/15 (40.0)
No 5/18 (27.8)
Supplemental oxygen 5.0 (0.7–34.2) 0.054
Yes 10/22 (45.5)
No 1/11 (9.1)
Mechanical ventilation 0.8 (0.3–2.3) 0.7
Yes 3/11 (27.3)
No 8/22 (36.4)
Death 1.3 (0.5–3.5)
0.7
Yes 4/10 (40.0)
No
7/23 (30.4)
Treatment with
Ribavirin UD 1.0
   Yes 0/2 (0)
   No 10/30 (33.3)
Corticosteroids 0.3 (0.1–1.1) 0.06
   Yes 2/15 (13.3)
   No 8/17 (47.1)
Antimicrobial drugs 1.0 (0.3–3.0) 1.0
   Yes 8/24 (33.3)
   No 3/9 (33.3)

*SARS, severe acute respiratory syndrome; RR, relative risk; CI, confidence interval; UD, undefined; ICU, intensive care unit.

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