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Volume 10, Number 6—June 2004

Letter

Diagnostic Criteria during SARS Outbreak in Hong Kong

Louis Y. Chan*, Nelson Lee†Comments to Author , Paul K.S. Chan†, Alan Wu†, Timothy H. Rainer†, Philip K.T. Li*, Hong Fung*, and Joseph JY Sung†
Author affiliations: *Prince of Wales Hospital, Hong Kong, Special Administrative Region (SAR); †The Chinese University of Hong Kong, Hong Kong, SAR

Main Article

Table

SARS contact history and demographic and initial laboratory parameters in seropositive and seronegative patients

Seropositive patients, n = 353 (%) Seronegative patients, n = 2 (%) p value or OR (95% CI)a
Demographic data
Age 40.9 ± 17.2 51.2 ± 24.3 0.008
Healthcare workers 193 (54.7) 2 (9.1) 12.1 (2.8 to 52.4)
Non-HCW 160 (45.3) 20 (90.9)
Laboratory parameters on admission
Total leukocyte count (x 109/L) 6.2 ± 3.2 9.4 ± 7.4 <0.001
Lymphocyte count (x 109/L) 1.0 ± 0.4 1.2 ± 0.8 0.027
Level of contact
Definite close contact 322 (91.2) 7 (31.8) 22.3 (8.4 to 58.7)
Possible contact 31 (8.8) 15 (68.2)
Possible contact plus lymphopenia
Lymphocyte < 0.8 x 109/L 13 (76.5) 4 (23.5)
Lymphocyte < 1.0 x 109/L 21 (72.4) 8 (27.6)
Venue of contact
Hospital 290 (82.2) 8 (36.4) 8.1 (3.2 to 20.0)
Community 63 (17.8) 14 (63.6)

aOR, odds ratio; CI, confidence interval

Main Article

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