Table 1.
Baseline characteristics of patients infected with COVID-19.
| All patient | Disease Severity |
p value | ||
|---|---|---|---|---|
| Non-severe | Severe | |||
| N | 1663 | 799 | 864 | |
| Age | ||||
| Median (IQR) | 64.0(52.0−71.0) | 61.0(47.0−69.0) | 66.0(57.0−73.0) | <0.0001 |
| Age groups (years), n (%) | <0.0001 | |||
| <30 | 38(2.3) | 26(3.3) | 12(1.4) | |
| 30−49 | 311(18.7) | 202(25.3) | 109(12.6) | |
| 50−69 | 826(49.7) | 378(47.3) | 448(51.9) | |
| ≥70 | 488(29.3) | 193(24.2) | 295(34.1) | |
| Women, n (%) | 825(49.6) | 415(51.9) | 410(47.5) | 0.07 |
| Occupation, n (%) | <0.0001 | |||
| Others | 896(53.9) | 476(59.6) | 420(48.6) | |
| Medical staff | 46(2.8) | 33(4.1) | 13(1.5) | |
| Retirees | 568(34.2) | 216(27.0) | 352(40.7) | |
| Farmers / workers | 153(9.2) | 74(9.3) | 79(9.1) | |
| Exposure history, n (%) | ||||
| Huanan seafood market exposure | 11(0.7) | 6(0.8) | 5(0.6) | 0.67 |
| Family infection | 123(7.4) | 58(7.3) | 65(7.5) | 0.84 |
| Time from onset to diagnosis, Median (IQR), days | 9.0(5.0−14.0) | 9.0(4.0-14.0) | 10.0(5.0-15.0) | 0.007 |
| Time from onset to admission, Median (IQR), days | 10.0(6.0−14.0) | 9.0(6.0−14.0) | 10.0(7.0−15.0) | 0.01 |
| Length of hospital stay, Median (IQR), days | 17.0(13.0−19.0) | 18.0(15.0−20.0) | 17.0(11.0−18.0) | <0.0001 |
| Clinical outcomes at data cutoff, n (%) | <0.0001 | |||
| Hospitalization | 1061(63.8) | 519(65.0) | 542(62.7) | |
| Improvement and discharge | 433(26.0) | 280(35.0) | 153(17.7) | |
| Death | 169(10.2) | 0(0.0) | 169(19.6) | |
| Comorbidity, n (%) | ||||
| Hypertension | 347(20.9) | 142(17.8) | 205(23.7) | 0.003 |
| Diabetes | 245(14.7) | 85(10.6) | 160(18.5) | <0.0001 |
| Coronary heart disease | 131(7.9) | 46(5.8) | 85(9.8) | 0.002 |
| Chronic obstructive pulmonary disease | 62(3.7) | 25(3.1) | 37(4.3) | 0.21 |
| Cerebrovascular disease | 57(3.4) | 24(3.0) | 33(3.8) | 0.36 |
| Chronic liver disease | 38(2.3) | 16(2.0) | 22(2.6) | 0.46 |
| Chronic renal disease | 31(1.9) | 16(2.0) | 15(1.7) | 0.69 |
| Cancer | 19(1.1) | 6(0.8) | 13(1.5) | 0.15 |
Data are medians (IQR) or number (%). COVID-19, coronavirus disease 2019; IQR, inter-quartile ranges. The percentages were calculated column-wise.