Characteristics of training and test cohort of patients with COVID-19
| Predictors | Sampling | Training (70% random) | Test (30% random) | ||
| Complicated (%) (n=197) | Home (%) (n=4054) | Complicated (%) (n=94) | Home (%) (n=1729) | ||
| Age group (years) | <40 | 15 (7.6) | 1514 (37.3) | 2 (2.1) | 672 (38.9) |
| 40–49 | 14 (7.1) | 682 (16.8) | 2 (2.1) | 303 (17.5) | |
| 50–59 | 21 (10.7) | 850 (21.0) | 13 (13.8) | 354 (20.5) | |
| 60–69 | 33 (16.8) | 539 (13.3) | 10 (10.6) | 219 (12.7) | |
| 70–79 | 42 (21.3) | 321 (7.9) | 24 (25.5) | 115 (6.7) | |
| 80–89 | 49 (24.9) | 122 (3.0) | 30 (31.9) | 56 (3.2) | |
| 90+ | 23 (11.7) | 26 (0.6) | 13 (13.8) | 10 (0.6) | |
| Sex | Man | 87 (44.2) | 1711 (42.2) | 57 (60.6) | 720 (41.6) |
| Woman | 110 (55.8) | 2343 (57.8) | 37 (39.4) | 1009 (58.4) | |
| Timing | Before August 2020 | 59 (29.9) | 2587 (63.8) | 35 (37.2) | 1073 (62.1) |
| After August 2020 | 138 (70.1) | 1467 (36.2) | 59 (62.8) | 656 (37.9) | |
| Tested | Negative or not | 32 (16.2) | 698 (17.2) | 17 (18.1) | 327 (18.9) |
| Positive | 165 (83.8) | 3356 (82.8) | 77 (81.9) | 1402 (81.1) | |
| NDS | Middle | 58 (29.4) | 1568 (38.7) | 27 (28.7) | 673 (38.9) |
| Low | 102 (51.8) | 1346 (33.2) | 48 (51.1) | 554 (32.0) | |
| High | 37 (18.8) | 1140 (28.1) | 19 (20.2) | 502 (29.0) | |
| Overweight | BMI <30 kg/m2 | 164 (83.2) | 3621 (89.3) | 77 (81.9) | 1551 (89.7) |
| BMI ≥30 kg/m2 | 33 (16.8) | 433 (10.7) | 17 (18.1) | 178 (10.3) | |
| CCS | 0 | 42 (21.3) | 2273 (56.1) | 18 (19.1) | 977 (56.5) |
| 1 | 40 (20.3) | 1010 (24.9) | 9 (9.6) | 420 (24.3) | |
| 2 | 52 (26.4) | 471 (11.6) | 22 (23.4) | 184 (10.6) | |
| 3 | 39 (19.8) | 198 (4.9) | 26 (27.7) | 99 (5.7) | |
| 4 | 19 (9.6) | 73 (1.8) | 12 (12.8) | 40 (2.3) | |
| 5+ | 5 (2.5) | 29 (0.7) | 7 (7.4) | 9 (0.5) | |
BMI, body mass index; CCS, chronic comorbidity score; NDS, neighbourhood deprivation score.