Table 1 Clinical characteristics of the patients at baseline.
Variables | Total n = 530 | Survivors n = 370 | Nonsurvivors n = 160 | p value |
|---|---|---|---|---|
Demography | ||||
Median age—years (IQR*) | 56 (39–73) | 54 (37–71) | 59 (44–76) | < 0.001 |
Age ≥ 60 years | 247 (46.6) | 155 (41.9) | 92 (57.5) | < 0.001 |
Male sex—n. (%) | 337 (63.6) | 241(65.1) | 96 (60) | 0.26 |
Referred from another hospital—n. (%) | 52 (9.8) | 37 (10.0) | 15 (9.4) | 0.82 |
Comorbidities—n. (%) | ||||
Hypertension | 278 (52.5) | 179 (48.4) | 99 (61.9) | 0.004 |
Diabetes | 99 (18.7) | 54 (14.6) | 45 (28.1) | < 0.001 |
Nondialysis chronic kidney disease (CrCl† < 60 mL/min) | 54 (10.2) | 32 (8.6) | 22 (13.8) | 0.075 |
Dialysis | 34 (6.4) | 19 (5.1) | 15 (9.4) | 0.067 |
Preexisting heart valve disease | ||||
Rheumatic | 186 (35.1) | 136 (36.8) | 50 (31.2) | 0.22 |
Degenerative | 109 (20.6) | 74 (20) | 35 (21.9) | 0.62 |
Mitral prolapse | 55 (10.4) | 37 (10) | 18 (11.2) | 0.66 |
Bicuspid aortic valve | 29 (5.5) | 19 (5.1) | 10 (6.2) | 0.60 |
Noncyanogenic congenital heart disease | 11 (2.1) | 11 (3) | 0 (0) | 0.028 |
Cyanogenic congenital heart disease | 11 (2.1) | 7 (1.9) | 4 (2.5) | 0.65 |
Biological prosthesis | 242 (45.7) | 171 (46.2) | 71 (44.4) | 0.70 |
Mechanical prosthesis | 35 (6.6) | 24 (6.5) | 11 (6.9) | 0.87 |
Ascending aorta prosthetic graft or other nonvalvular intracardiac prosthesis | 9 (1.7) | 7 (1.9) | 2 (1.2) | 0.6 |
TAVI‡ | 1 (0.2) | 1 (0.3) | 0 (0) | 0.51 |
Unknown cause | 40 (7.5) | 25 (6.8) | 15 (9.4) | 0.29 |
Intravenous drug | 3 (0.6) | 2 (0.5) | 1 (0.6) | 1.00 |
Previous endocarditis | 97 (18.3) | 74 (20) | 23 (14.4) | 0.12 |
Intracardiac devices | 34 (6.4) | 23 (6.2) | 11 (6.9) | 0.78 |
Dialysis catheter | 22 (4.2) | 11 (3) | 11 (6.9) | 0.039 |
Predisposing risk factor for endocarditis§ | 435 (82.1) | 306 (82.7) | 129 (80.6) | 0.7 |
Signs and symptoms – n. (%) | ||||
Fever | 378 (71.3) | 285 (77) | 93 (58.1) | < 0.001 |
NYHA|| class III or IV heart failure | 217 (40.9) | 133 (35.9) | 84 (52.5) | < 0.001 |
Petechiae | 49 (9.2) | 35 (9.5) | 14 (8.8) | 0.80 |
Heart murmur | 433 (81.7) | 300 (81.1) | 133 (83.1) | 0.58 |
Suspected emboli (CNS** deficit or limb ischemia signs) | 86 (16.2) | 50 (13.5) | 36 (22.5) | 0.073 |
Symptoms ≥ 14 days upon admission | 278 (52.5) | 196 (53) | 82 (51.2) | 0.72 |