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. 2020 Aug 25;6(3):e20872. doi: 10.2196/20872

Table 1.

Characteristics of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)–positive, complicated, and noncomplicated coronavirus disease (COVID-19) patient cohorts.

Characteristic SARS-CoV-2 positive (n=4353) Complicated COVID-19 (n=173) Noncomplicated COVID-19 (n=4180)
Demographic information

Age (years), median (IQR) 35 (22-54) 70 (58-80) 34 (22-52)


<18, n (%) 647 (15) 0 (0) 647 (15.6)


18-50, n (%) 2354 (54.5) 21 (12.1) 2333 (56.3)


50-60, n (%) 609 (14.1) 29 (16.8) 580 (14)


60-70, n (%) 376 (8.7) 35 (20.2) 341 (8.2)


70-80, n (%) 232 (5.4) 42 (24.3) 190 (4.6)


≤80, n (%) 135 (3.1) 46 (26.6) 89 (2.1)

Female, n (%) 1939 (44.5) 50 (28.9) 1889 (45.2)

Follow-up days, median (IQR) 30 (24-36) 28 (21-33) 30 (24-36)
Comorbidities, n (%)

Chronic respiratory diseases 481 (11) 39 (22.5) 442 (10.6)


Chronic obstructive pulmonary disease 310 (7.1) 24 (13.9) 286 (6.8)


Other chronic pulmonary disease 153 (3.5) 10 (5.8) 143 (3.4)


Pleural effusion 41 (0.9) 4 (2.3) 37 (0.9)

Cardiovascular diseases 310 (7.1) 57 (32.9) 253 (6.1)


Ischemic heart disease 132 (3) 27 (15.6) 105 (2.5)


Congestive heart failure 30 (0.7) 11 (6.4) 19 (0.5)


Cerebrovascular disease 57 (1.3) 15 (8.7) 42 (1)


Peripheral vascular disease 23 (0.5) 7 (4) 16 (0.4)


Other cardiovascular diseases 199 (4.6) 41 (23.7) 158 (3.8)

Hypertension 627 (14.4) 102 (59) 525 (12.6)

Immunosuppression 164 (3.8) 31 (17.9) 133 (3.2)

Cancer 205 (4.7) 33 (19.1) 172 (4.1)

Deficiency anemia 423 (9.7) 18 (10.4) 405 (9.7)

Liver and kidney diseases


Liver disease 404 (9.3) 28 (16.2) 376 (9)


Chronic kidney disease 384 (8.8) 86 (49.7) 298 (7.1)


End stage renal disease 85 (2) 26 (15) 59 (1.4)

Fluid and electrolyte disorders 394 (9.1) 37 (21.4) 357 (8.5)

Metabolic diseases




Diabetes 362 (8.3) 58 (33.5) 304 (7.3)


Obesity (BMI≥30) 874 (20.1) 73 (42.2) 801 (19.2)

Neurological and cognitive disorders


Neurological disorders 294 (6.8) 57 (32.9) 237 (5.7)


Paralysis 53 (1.2) 12 (6.9) 41 (1)


Depression 578 (13.3) 53 (30.6) 525 (12.6)


Cognitive impairment 87 (2) 28 (16.2) 59 (1.4)

Other


Hospitalization 931 (21.4) 92 (53.2) 839 (20.1)


Smoking 643 (14.8) 41 (23.7) 602 (14.4)



Current smoker 514 (11.8) 30 (17.3) 484 (11.6)



Past smoker 129 (3) 11 (6.4) 118 (2.8)


Nursing home 67 (1.5) 23 (13.3) 44 (1.1)


Home care 44 (1) 17 (9.8) 27 (0.6)