Table 1.
Comparison of characteristics between the groups before and after 2000
| Characteristics | Population (n = 632) | Year of treatment | p value | |
|---|---|---|---|---|
| Before 2000 (n = 353) | After 2000 (n = 279) | |||
| Age (years) | 54.8 ± 15.1 | 59.0 ± 14.8 | 51.5 ± 14.5 | < 0.001 |
| Male gender | 435 (68.8) | 255 (72.2) | 180 (64.5) | 0.037 |
| Etiology: | ||||
| Ischemic | 132 (20.9) | 56 (15.0) | 76 (27.2) | < 0.001 |
| Non-ischemic (non- chagasic) | 312 (49.4) | 173 (49.0) | 139 (49.8) | 0.839 |
| Chagasic | 188 (29.7) | 124 (35.1) | 64 (22.9) | 0.001 |
| LVEF (%) | 28.2 ± 7.2 | 30.8 ± 5.9 | 24.7 ± 7.3 | < 0.001 |
| Creatinine (mg/dL) | 1.5 ± 0.7 | 1.5 ± 0.5 | 1.5 ± 0.5 | 0.239 |
| Sodium (mEq/L) | 135.7 ± 5.0 | 136.7 ± 4.7 | 134.9 ± 5.1 | < 0.001 |
| SBP (mmHg) | 103.6 (25.4) | 102.6 ± 21.9 | 105.0 ± 30.1 | 0.163 |
| Mortality (1 year) | 264 (41.8) | 200 (56.7) | 63 (22.8) | < 0.001 |
LVEF: left ventricular ejection fraction; SBP: systolic blood pressure.