Table 2.
General data for the three categories.
| Low Risk | Intermediate Risk | High Risk | p-Value | |
|---|---|---|---|---|
| N | 352 | 3018 | 13,752 | |
| Age, median (IQR) | 57.9 (43.7–71.3) | 64.2 (51.7–76.5) | 70.4 (57.8–80.3) | <0.001 |
| Gender (males) | 132 (37.5) | 1416 (46.9) | 8264 (60.1) | <0.001 |
| Days from onset to admission, median (IQR) | 6 (3–10) | 7 (4–9) | 6 (3–9) | 0.005 |
| Smoking behaviour | <0.001 | |||
| Never smoker | 254 (72.2) | 2201 (72.9) | 9485 (69) | |
| Former smoker | 71 (20.2) | 664 (22) | 3582 (26) | |
| Current smoker | 27 (7.7) | 153 (5.1) | 685 (5) | |
| Degree of dependency | <0.001 | |||
| None or mild | 314 (89.2) | 2595 (86) | 11,423 (83.1) | |
| Moderate | 24 (6.8) | 231 (7.7) | 1329 (9.7) | |
| Severe | 14 (4) | 192 (6.4) | 1000 (7.3) | |
| Arterial hypertension | 130 (36.9) | 1365 (45.2) | 7260 (52.8) | <0.001 |
| Dyslipidemia | 100 (28.4) | 1118 (37) | 5584 (40.6) | <0.001 |
| Diabetes mellitus | 42 (11.9) | 516 (17.1) | 2822 (20.5) | <0.001 |
| Ischaemic cardiopathy | 13 (3.7) | 196 (6.5) | 1151 (8.4) | <0.001 |
| Chronic heart failure | 12 (3.4) | 158 (5.2) | 1045 (7.6) | <0.001 |
| Chronic liver disease | 4 (1.1) | 91 (3) | 537 (3.9) | 0.002 |
| Severe chronic renal failure | 8 (2.3) | 108 (3.6) | 920 (6.7) | <0.001 |
| Cancer | 23 (6.5) | 216 (7.2) | 1521 (11.1) | <0.001 |
| COPD | 20 (5.7) | 163 (5.4) | 972 (7.1) | 0.003 |
| Asthma | 40 (11.4) | 279 (9.2) | 895 (7.1) | <0.001 |
| OSAS | 16 (4.5) | 188 (6.2) | 839 (6.1) | 0.455 |
IQR: interquartile range. COPD: chronic obstructive pulmonary disease. OSAS: obstructive sleep apnea syndrome. Severe chronic renal failure: Creatinin >300 mg/dL or dyalisis.