Table 1. Demographics and baseline characteristics of patients with COVID-19.
| Parameter | All patients (n=196) | Severe group (n=45) | Non-severe group (n=151) | P values |
|---|---|---|---|---|
| Age, years | 52 [38–65] | 65 [54–74] | 46 [36–62] | <0.001* |
| Sex | ||||
| Male | 105 (53.6) | 30 (66.7) | 75 (49.7) | 0.060 |
| Female | 91 (46.4) | 15 (33.3) | 76 (50.3) | |
| Onset symptom to hospital admission, d | 4 [3–8] | 5 [3–8] | 4 [3–7.5] | 0.348 |
| History of exposure in an outbreak area | 121 (61.7) | 19 (42.2) | 102 (67.5) | 0.003* |
| Comorbidities | 72 (36.7) | 25 (55.6) | 47 (31.1) | 0.004* |
| Hypertension | 46 (23.5) | 15 (33.3) | 31 (20.5) | 0.107 |
| Cardiovascular disease | 13 (6.6) | 7 (15.6) | 6 (4.0) | 0.012* |
| Diabetes | 10 (5.1) | 2 (4.4) | 8 (5.3) | 1.000 |
| Current smoking | 10 (5.1) | 3 (6.7) | 7 (4.6) | 0.699 |
| Signs and symptoms | ||||
| Fever | 170 (86.7) | 39 (86.7) | 131 (86.8) | 1.000 |
| Dry cough | 45 (23.0) | 10 (22.2) | 35 (23.2) | 1.000 |
| Expectoration | 35 (17.9) | 12 (26.7) | 23 (15.2) | 0.118 |
Continuous variables are presented as median (interquartile range), and dichotomous variables are presented as numbers of patients, with percentages in parentheses. *, P<0.05; P values are from Fisher’s exact test or Wilcoxon rank-sum test when comparing the severe group with the non-severe group; COVID-19, coronavirus disease 2019.