Table 1.
Demographic and clinical parameters
| Overall | Survivors | Non-survivors | P value | |
|---|---|---|---|---|
| N = 321 | N = 224 | N = 97 | ||
| Age | ||||
| Years, mean (SD) | 63.3 (14.7) | 59.6 (14.6) | 71.9 (11.2) | < 0.001 |
| Sex | ||||
| Male, N (%) | 215 (67.0) | 145 (64.7) | 70 (72.2) | 0.193 |
| Female, N (%) | 106 (33.0) | 79 (35.3) | 27 (27.8) | |
| Comorbidities | ||||
| Hypertension, N (%) | 131 (40.8) | 70 (31.3) | 61 (62.9) | < 0.001 |
| Diabetes, N (%) | 42 (13.1) | 19 (8.5) | 23 (23.7) | < 0.001 |
| Respiratory disease, N (%) | 28 (8.7) | 14 (6.3) | 14 (14.4) | 0.017 |
| Malignancy, N (%) | 19 (5.9) | 10 (4.5) | 9 (9.3) | 0.093 |
| Cardiovascular disease, N (%) | 55 (17.1) | 27 (12.1) | 28 (28.9) | < 0.001 |
| Renal disease, N (%) | 51 (15.9) | 13 (5.8) | 38 (39.2) | < 0.001 |
| Obesity, N (%) | 15 (4.7) | 8 (3.6) | 7 (7.2) | 0.155 |
Values expressed in percentages (%) indicate the proportion of patients within each group for each variable. Data are presented as mean (standard deviation, SD) where specified. The Chi-square (χ2) test was used to determine significance between the groups for categorical variables, Student’s t test for the variable of age