Table 1 Baseline characteristics of the participants based on COVID-19 severity
| Â | Non-severe | Severe or critical | p |
|---|---|---|---|
N = 1068 | N = 530 | ||
Sex: | Â | Â | 0.004 |
 Male | 629(58.9%) | 352(66.4%) |  |
 Female | 439(41.1%) | 178(33.6%) |  |
Age: |  |  | < 0.001 |
 60–80 | 621(58.1%) | 213(40.2%) |  |
 ≥ 80 | 447(41.9%) | 317(59.8%) |  |
Smoking: | Â | Â | 0.234 |
 No | 882(82.6%) | 424(80.0%) |  |
 Yes | 186(17.4%) | 106(20.0%) |  |
Barthel index | 80.0[60.0;100] | 45.0[20.0;70.0] | < 0.001 |
Barthel index: |  |  | < 0.001 |
 Independent | 289(27.1%) | 35(6.60%) |  |
 Mildly dependent | 437(40.9%) | 138(26.0%) |  |
 Moderately dependent | 195(18.3%) | 111(20.9%) |  |
 Severely dependent | 147(13.8%) | 246(46.4%) |  |
Peripheral blood lymphocyte count (109/L) | 1.00[0.64;1.40] | 0.70[0.48;1.04] | < 0.001 |
Neutrophil count (109/L) | 3.90[2.79;5.70] | 5.40[3.70;8.00] | < 0.001 |
D-dimer (ug/L) | 450[214;969] | 892[335;2198] | < 0.001 |
Serum albumin (g/L) | 34.5[31.5;38.0] | 31.0[27.7;33.4] | < 0.001 |
NLR | 4.01[2.39;7.42] | 7.60[4.25;14.2] | < 0.001 |
Multimorbidity: |  |  | < 0.001 |
 No | 365(34.2%) | 120(22.6%) |  |
 Yes | 703(65.8%) | 410(77.4%) |  |