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. 2021 Mar 17;12:646095. doi: 10.3389/fimmu.2021.646095

Table 1.

Patient characteristics of SARS-CoV-2 positive cohort.

Characteristics COVID (n = 55)
All patients (n = 55) ICU Admission (n = 15) Supplemental O2 (n = 25) ψ
Age (years), (median, IQR) 58 (40; 70) 59 (50; 69) 66 (52; 71)
Sex (M:F) 31:24 10:5 17:8
Ethnicity
(no.; %)
ATSI (1; 1.8%)
African (4; 7.3%)
Caucasian (31; 56.4%)
East Asian (4; 7.3%)
Indo-Asian (2; 3.6%)
Other (1; 1.8%)
Unknown (12; 21.8%)
African (3; 20%)
Caucasian (8; 53.3%)
Indo-Asian (1; 6.7%)
Other (1; 6.7%)
Unknown (2; 13.3%)
African (2; 8%)
Caucasian (17; 68%)
East Asian (1; 4%)
Indo-Asian (2; 4%)
Other (1; 4%)
Unknown (3; 12%)
Smoking status
(no./total no.; %)
Smoker (4/50; 8%)
Ex-smoker (6/50;12%)
Non-smoker (40/50; 80%)
Smoker (1/13; 7.7%)
Ex-smoker (1/13; 7.7%)
Non-smoker (11/13; 84.6%)
Smoker (1/21; 4.8%)
Ex-smoker (4/21; 19%)
Non-smoker (16/21; 76.2%)
Comorbidities (no.; %)
Hypertension 20; 36.4% 6; 40% 14; 56%
Cardiac disease 7; 12.7% 2; 13.3% 5; 20%
Chronic respiratory disease 13; 23.6% 5; 33.3% 9; 36%
Chronic renal or liver disease 1; 1.8% 0; 0% 0; 0%
Diabetes 15; 27.3% 5; 33.3% 10; 40%
Immunosuppression ♣ 5; 9.1% 2; 13.3% 3; 12%
Pregnancy 1; 1.8% 0; 0% 0; 0%
ACEI/ARB use 10; 18.2% 2; 13.3% 7; 28%
Clinical characteristics
Charlson comorbidity index ♦
(median, IQR)
1 (0;3) 1 (1;2) 2 (1;3)
COVID-MATCH65 Score Φ
(median, IQR)
3.5 (2.5;5) 4 (3.5;5) 4.5 (3.5;5)
Latency presentation recruitment ▽ (days), (median, IQR) 7 (5;10) 7 (5;10) 7 (5;9)
Length of hospital stay (days)
(median, IQR)
6 (3;13) 17 (9;27) 13 (6;21)
Death (no.; %) 2; 3.6% 0; 0% 2; 8%

ACEI, angiotensin-converting-enzyme inhibitors; ARB, angiotensin II receptor blockers; ATSI, Aboriginal or Torres Strait Islander; ICU, intensive care unit; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.

♣ The immunosuppression category includes patients that are known for any of the following conditions: transplant recipient, hematological or oncological malignancy (in the last 5 years), corticosteroid use of more than 10 mg prednisolone equivalent per day, connective tissue or autoimmune condition and acquired immunodeficiency syndrome.

Ψ Patients that required supplemental O2 continuously for more than 24 hours during their admission.

♦ The Charlson comorbidity index is age-adjusted.

Φ COVID-MATCH65 Score is a clinical decision rule internally derived that has a high sensitivity (92.6%) and NPV (99.5%) for SARS-CoV-2 and can be used to aid COVID-19 risk assessment and resource allocation for SARS-CoV-2 diagnostics. The resulting score ranges from 1 to 6.5 points with score ≤ 1 representing low risk for a positive test (9).

▽ Time from symptoms presentation and study recruitment (days).