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. 2021 Mar 23;10:e64909. doi: 10.7554/eLife.64909

Table 1. Demographics of patients and healthy controls.

Characteristics, N (%) Healthy participants
(n = 24)
Non-COVID-19 patients with cardiovascular risk factors
(n = 20)
Convalescent COVID-19 individuals
(n = 30)
Cardiovascular risk factors (n = 15) No cardiovascular risk (n = 15)
Age* 46.5 (9.9) years 62.4 (8.7) years 54 (8.7) years 42 (13.5) years
Age, male* 46.3 (11.3) years 62.3 (10.4) years 54 (8.2) years 36 (6.1) years
Age, female* 46.8 (8.8) years 63 (7.3) years 54 (9.9) years 48 (17.1) years
Gender, male 12 (50) 10 (50) 8 (53.3) 8 (53.3)
Gender, female 12 (50) 10 (50) 7 (46.7) 7 (46.7)
Ethnicity Chinese 22 (91.7) Chinese 17 (85) Chinese 11 (73.3) Chinese 13 (86.6)
Filipino 2 (8.3) Indian 3 (15) Malay 2 (13.3) Indian 1 (6.7)
Bangladeshi 1 (6.7) Caucasian 1 (6.7)
Filipino 1 (6.7)
Days post-symptom onset
(median [IQR])
N.A. N.A. 34 (27–46) days
COVID-19 severity N.A. N.A. Mild 5 (33.3) Mild 5 (33.3)
Moderate 5 (33.3) Moderate 5 (33.3)
Severe 5 (33.3) Severe 5 (33.3)
Comorbidities
Hypertension 0 (0) 20 (100) 10 (66.7) 0 (0)
Hyperlipidemia 0 (0) 10 (50) 11 (73.3) 0 (0)
Diabetes mellitus 0 (0) 9 (45) 7 (46.7) 0 (0)
Fatty liver 0 (0) Information not available 2 (13.3) 0 (0)
Chronic liver disease 0 (0) Information not available 1 (6.7) 0 (0)
Coronary artery disease 0 (0) 6 (30) Information not available Information not available
Myocardial infarction 0 (0) 0 (0) 2 (13.3) 0 (0)

All values are reported as N (%) where N indicates the number of observations.

*Values are expressed as mean (± standard deviation).