Skip to main content

Advertisement

Table 1 Demographic, epidemiological, clinical, and laboratory features of study patients

From: Clinical and epidemiological predictors of transmission in Severe Acute Respiratory Syndrome (SARS)

Demographics n (%)
Age   
- < = 24 23 23.5%
- 25 to 49 61 62.2%
- 50 and above 14 14.3%
Female gender 79 80.6%
Non-Chinese ethnicity 40 40.8%
Epidemiological features n (%)
Context of exposure to SARS   
- healthcare worker 57 58.2%
- hospital inpatient 10 10.2%
- *others 31 31.6%
Date of onset   
- 21/3/03 or earlier (before universal PPE) 78 79.6%
- 22/3//03 or later (after universal PPE) 20 20.4%
Delayed isolation (on Day 7 or later) 34 34.7%
Ever admitted to a non-isolation ward 12 12.2%
Ever admitted to a non-isolation ward 12 12.2%
Clinical features n (%)
Chronic illness   
- chronic respiratory illness 7 7.1%
- disease with immunosuppression 10 10.2%
Disease severity at time of isolation   
- had an abnormal chest radiograph 78 79.6%
- required oxygen therapy 14 14.3%
- admitted to intensive care or high dependency 4 4.1%
- intubated 2 2.0%
Signs and symptoms at time of isolation   
- temperature > = 38°C 74 75.5%
- fever 95 96.9%
- cough 55 56.1%
- dyspnoea 24 24.5%
- vomiting 17 17.3%
- diarrhoea 14 14.3%
Chest radiograph and confirmatory tests for SARS   
- ever had abnormal CXR 88 89.8%
- positive PCR specimen 13 13.3%
- positive serology 91 92.9%
^Other laboratory investigations Median (IQR)
- highest alanine aminotransferase (7–36 IU/L) 21 (14–41)
- highest lactate dehydrogenase (200–500 IU/L) 447 (348–650)
- lowest platelet count (160-390*10^9/L) 184 (145–220)
- highest neutrophil count (4-10*10^9/L) 3.36 (2.35–5.04)
- lowest lymphocyte count (1.5-4.3*10^9/L) 0.93 (0.66–1.21)
  1. *others: original imported index patient and hospital visitors
  2. ^reference ranges given in brackets