Table 1. Participant characteristics with missing values of COVID-19 patients (training cohort).
| Characteristic | Missing Values, n (%) | Counts, n (%) |
|---|---|---|
| Died patients | 0 | 568 (24.3) |
| Demography | ||
| Age | 0 | Mean: 66.8 ± 14.4 y |
| Male | 0 | 1471 (62.9) |
| Smoking | 621 (26.6) | |
| Never smoking | 861 (36.8) | |
| Former smoker | 738 (31.6) | |
| Current smoker | 117 (5.0) | |
| Healthcare worker | 104 (4.5) | 98 (4.2) |
| Alcohol use disorder | 453 (19.4) | 50 (2.1) |
| Pregnancy | 0 | 11 (0.5) |
| Complications | ||
| Hypertension | 7 (0.3) | 1079 (46.2) |
| Diabetes | 0 | 609 (26.1) |
| Rheumatic diseases | 1 (0.04) | 258 (11.0) |
| Autoimmune disorder | 22 (0.9) | 187 (8.0) |
| Dementia | 13 (0.6) | 99 (4.2) |
| Cancer | 13 (0.6) | 164 (7.0) |
| COPD | 4 (0.2) | 437 (18.7) |
| Asthma | 7 (0.3) | 226 (9.7) |
| CHD | 3 (0.1) | 87 (3.7) |
| CCD | 3 (0.1) | 706 (30.2) |
| CND | 4 (0.2) | 315 (13.5) |
| CLD | 0 | 110 (4.7) |
| CKD | 3 (0.1) | 268 (11.5) |
| AIDS | 4 (0.2) | 10 (0.4) |
| Cachexia | 0 | 33 (1.4) |
| Organ transplant | 0 | 33 (1.4) |
COPD, chronic obstructive pulmonary disease; CHD, chronic hematologic disease; CCD, chronic cardiac disease; CND, chronic neurological disease; CLD, chronic liver disease; CKD, chronic kidney disease; AIDS, Acquired Immune Deficiency Syndrome.