Table 1 Demographic data of patients
Training set (N = 1600) | Validation set (N = 169) | Testing set (N = 169) | P value | |
|---|---|---|---|---|
Age (median [IQR]) | 68.69 [55.50, 79.05] | 71.38 [59.00, 79.76] | 69.13 [57.76, 78.33] | 0.442 |
Male (%) | 918 (57.4) | 98 (58.0) | 88 (52. 1) | 0.400 |
Congestive heart failure (%) | 58 (3.6) | 8 (4.7) | 6 (3.6) | 0.764 |
Cardiac arrhythmias (%) | 6 (0.4) | 0 (0.0) | 0 (0.0) | 0.530 |
Valvular disease (%) | 59 (3.7) | 10 (5.9) | 2 (1.2) | 0.068 |
Peripheral vascular disease (%) | 57 (3.6) | 8 (4.7) | 1 (0.6) | 0.078 |
Other neurological disease (%) | 15 (0.9) | 1 (0.6) | 4 (2.4) | 0.182 |
Hypertension (%) | 8 (0.5) | 0 (0.0) | 1 (0.6) | 0.640 |
Chronic pulmonary disease (%) | 11 (0.7) | 0 (0.0) | 3 (1.8) | 0.145 |
Diabetes uncomplicated (%) | 6 (0.4) | 0 (0.0) | 0 (0.0) | 0.530 |
Hypothyroidism (%) | 1 (0.1) | 0 (0.0) | 0 (0.0) | 0.900 |
Renal failure (%) | 2 (0.1) | 0 (0.0) | 0 (0.0) | 0.809 |
Liver disease (%) | 18 (1.1) | 0 (0.0) | 0 (0.0) | 0.147 |
Peptic ulcer (%) | 1 (0.1) | 0 (0.0) | 0 (0.0) | 0.900 |
AIDS (%) | 7 (0.4) | 2 (1.2) | 0 (0.0) | 0.259 |
Lymphoma (%) | 9 (0.6) | 0 (0.0) | 0 (0.0) | 0.385 |
Solid tumor (%) | 55 (3.4) | 8 (4.7) | 3 (1.8) | 0.320 |
Rheumatoid arthritis (%) | 4 (0.2) | 0 (0.0) | 0 (0.0) | 0.655 |
Coagulopathy (%) | 1 (0.1) | 0 (0.0) | 0 (0.0) | 0.900 |
Alcohol abuse (%) | 3 (0.2) | 1 (0.6) | 1 (0.6) | 0.412 |