Table 6.
Characteristics and outcomes after propensity score matching.
| Inotrope Users (n = 989) | Inotrope Non-Users (n = 989) | Standardized Mean Difference | p Value | |
|---|---|---|---|---|
| Sex (male) | 566 (57.2%) | 583 (58.9%) | 3.2% | 0.439 |
| Age (years old) | 65.6 ± 15.2 | 67.2 ± 14.5 | 10.7% | 0.014 |
| BMI (kg/m2) | 23.1 ± 3.7 | 23.1 ± 3.7 | 0.5% | 0.732 |
| LVEF (%) | 34.3 ± 15.0 | 32.8 ± 12.9 | 10.5% | 0.020 |
| Risk factors | ||||
| HTN, n (%) | 560 (56.6%) | 523 (52.9%) | 7.7% | 0.095 |
| DM, n (%) | 371 (37.5%) | 369 (37.3%) | 0.4% | 0.926 |
| Smoking, % * | 18.8/21.8/59.4 | 20.4/21.1/58.4 | 2.1% | 0.656 |
| Previous MI, n (%) | 166 (16.8%) | 161 (16.3%) | 1.4% | 0.762 |
| Previous PCI, n (%) | 168 (17.0%) | 180 (18.2%) | 3.3% | 0.479 |
| Previous CABG, n (%) | 68 (6.9%) | 64 (6.5%) | 1.7% | 0.719 |
| COPD, n (%) | 118 (11.9%) | 90 (9.1%) | 9.1% | 0.048 |
| CRF, n (%) | 152 (15.4%) | 118 (11.9%) | 9.9% | 0.031 |
| Initial SBP | 126 ± 29 | 133 ± 30 | 23.7% | <0.001 |
| Initial DBP | 76 ± 18 | 81 ± 20 | 26.3% | <0.001 |
| Initial HR | 93 ± 24 | 94 ± 25 | 4.1% | 0.290 |
| Valve disease, n (%) | 160 (16.2%) | 150 (15.2%) | 2.9% | 0.536 |
| Previous CVA, n (%) | 135 (13.7%) | 145 (14.7%) | 3.0% | 0.513 |
| Atrial fibrillation, n (%) | 269 (27.2%) | 251 (25.4%) | 4.2% | 0.358 |
| Laboratory analysis | ||||
| WBC (109/L) | 9010±4040 | 8680 ± 3790 | 8.4% | 0.059 |
| Hb (g/dL) | 12.4 ± 2.3 | 12.6 ± 2.3 | 8.7% | 0.036 |
| Platelet (109/L) | 209 ± 93 | 210 ± 80 | 1.2% | 0.976 |
| Na (m Eq/L) | 137± 5 | 137 ± 5 | 4.0% | 0.368 |
| Uric acid (mg/dL) | 7.3 ± 2.8 | 7.1 ± 3.5 | 6.3% | 0.076 |
| Creatinine (mg/dL) | 1.54 ± 1.48 | 1.35 ± 1.16 | 14.3% | 0.001 |
| Glucose (mg/dL) | 163 ± 80 | 156 ± 75 | 7.7% | 0.029 |
| CRP (mg/L) | 2.64 ± 4.59 | 2.26 ± 3.86 | 9.0% | 0.044 |
| Clinical events | ||||
| In-hospital adverse outcomes | 7.9% (78/989) | 1.9% (19/989) | NA | <0.001 |
| 1-month mortality | 4.2% (39/921) | 2.6% (25/974) | NA | 0.045 |
BMI, body mass index; LVEF, left ventricular ejection fraction; HTN, hypertension; DM, diabetes mellitus; MI, myocardial infarction; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft surgery; COPD, chronic obstructive pulmonary disease; CRF, chronic renal failure; CVA, cerebrovascular accident; WBC, white blood cell; Hb, hemoglobin; Na; sodium; BUN, blood urea nitrogen; CRP, C-reactive protein; BUN, brain natriuretic peptide; NTproBNP, n-terminal brain natriuretic peptide. * smoking: current smoker/ex-smoker/never smoked.