TABLE 1.
Clinical characteristics and prognosis of coronavirus disease 2019 (COVID-19) patients
| COVID-19 patients without underlying asthma | COVID-19 patients with underlying asthma | p-value | COVID-19 patients with underlying asthma | ||||||
| Step 1 | Step 2 | Step 3 | Step 4 | Step 5 | p-value | ||||
| Age years | <0.001** | 0.058 | |||||||
| 0–9 | 62 (0.8) | 20 (9.2) | 2 (3.9) | 0 (0.0) | 0 (0.0) | 18 (19.2) | 0 (0.0) | ||
| 10–19 | 343 (4.7) | 6 (2.8) | 1 (2.0) | 0 (0.0) | 1 (4.2) | 4 (4.3) | 0 (0.0) | ||
| 20–29 | 1833 (24.9) | 19 (8.7) | 8 (15.7) | 3 (6.7) | 3 (12.5) | 5 (5.3) | 0 (0.0) | ||
| 30–39 | 758 (10.3) | 18 (8.2) | 4 (7.8) | 3 (6.7) | 1 (4.2) | 10 (10.6) | 0 (0.0) | ||
| 40–49 | 983 (13.3) | 25 (11.5) | 7 (13.7) | 5 (11.1) | 4 (16.7) | 8 (8.5) | 1 (25.0) | ||
| 50–59 | 1468 (19.9) | 34 (15.6) | 10 (19.6) | 6 (13.3) | 5 (20.8) | 13 (13.8) | 0 (0.0) | ||
| 60–69 | 1020 (13.8) | 36 (16.5) | 7 (13.7) | 12 (26.7) | 4 (16.7) | 13 (13.8) | 0 (0.0) | ||
| ≤70 | 846 (11.5) | 60 (27.5) | 12 (23.5) | 16 (35.6) | 6 (25.0) | 23 (24.5) | 3 (75.0) | ||
| Sex | 0.393 | 0.923 | |||||||
| Male | 3000 (40.7) | 95 (43.6) | 23 (45.1) | 20 (44.4) | 12 (50.0) | 38 (40.4) | 2 (50.0) | ||
| Female | 4372 (59.3) | 123 (56.4) | 28 (54.9) | 25 (55.6) | 12 (50.0) | 56 (59.6) | 2 (50.0) | ||
| Charlson comorbidity index | <0.001** | 0.017* | |||||||
| 0 | 2029 (27.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | ||
| 1 | 1726 (23.4) | 48 (22.0) | 12 (23.5) | 3 (6.7) | 5 (20.8) | 28 (29.8) | 0 (0.0) | ||
| 2 | 1179 (16.0) | 40 (18.4) | 11 (21.6) | 5 (11.1) | 7 (29.2) | 17 (18.1) | 0 (0.0) | ||
| ≤3 | 2438 (33.1) | 130 (59.6) | 28 (54.9) | 37 (82.2) | 12 (50.0) | 49 (52.1) | 4 (100) | ||
| Prognosis | |||||||||
| Mortality | 210 (2.8) | 17 (7.8) | <0.001** | 5 (9.8) | 2 (4.4) | 1 (4.2) | 9 (9.6) | 0 (0.0) | 0.703 |
| Admission to ICU | 208 (2.8) | 7 (3.2) | 0.733 | 3 (5.9) | 1 (2.2) | 0 (0.0) | 3 (3.2) | 0 (0.0) | 0.691 |
| Duration of admission days | 20.1±12.2 | 21.0±13.5 | 0.285 | 18.7±12.0 | 23.7±15.7 | 22.7±13.0 | 19.9±12.6 | 38.3±16.4 | 0.026* |
| Total medical cost# USD | 4261.0±5354.0 | 5388.1±10 135.3 | 0.003* | 4403.5±4992.1 | 6242.7±9180.5 | 4694.6±3815.9 | 5669.8±13470.9 | 5868.4±2789.8 | 0.912 |
| Total | 7372 (97.1) | 218 (2.9) | 51 (23.4) | 45 (20.6) | 24 (11.0) | 94 (43.1) | 4 (1.8) | ||
Data are presented as n (%) or mean±sd, unless otherwise stated. ICU: intensive care unit. #: USD 1=KRW 1228.40 at June 1, 2020. *: p<0.05; **: p<0.001.