Research Article
Associations between β-Blocker Therapy at Discharge and Long-Term Follow-Up Outcomes in Patients with Unstable Angina Pectoris
Table 1
Clinical characteristics of patients in the β-blocker and no β-blocker groups.
| | | Before PS match | After PS match | | β-Blocker (-) N = 1801 | β-Blocker (+) N = 3790 | value | β-Blocker (-) N = 1786 | β-Blocker (+) N = 1786 | value |
| | Age (years) | 65.0 ± 9.4 | 64.4 ± 9.5 | 0.035 | 65.0 ± 9.4 | 65.0 ± 9.3 | 0.947 | | Male (%) | 1156 (64.2) | 2379 (62.8) | 0.305 | 1142 (63.9) | 1145 (64.1) | 0.917 | | BMI (kg/m2) | 25.8 ± 3.4 | 26.1 ± 3.5 | 0.004 | 25.8 ± 3.4 | 25.7 ± 3.4 | 0.298 | | SBP (mmHg) | 132 ± 17.2 | 132.7 ± 17.3 | 0.144 | 132.1 ± 17.2 | 132.0 ± 16.7 | 0.790 | | DBP (mmHg) | 75.6 ± 11.4 | 76.8 ± 11.0 | 0.001 | 75.8 ± 11.4 | 76.1 ± 10.9 | 0.387 | | Heart rate (bpm) | 66 (60,73) | 71 (64,78) | <0.001 | 66 (60,73) | 70 (64,78) | <0.001 |
| | Medical history | | Current smoker (%) | 569 (31.6) | 1186 (31.3) | 0.821 | 562 (31.5) | 548 (30.7) | 0.613 | | Hypertension (%) | 1216 (67.5) | 2842 (75.0) | <0.001 | 1216 (68.1) | 1226 (68.6) | 0.719 | | DM (%) | 703 (39.0) | 1616 (42.6) | <0.05 | 700 (39.2) | 712 (39.9) | 0.681 | | Dyslipidemia (%) | 878 (48.8) | 1909 (50.4) | 0.258 | 873 (48.9) | 862 (48.3) | 0.713 | | Stroke (%) | 286 (15.9) | 625 (16.5) | 0.563 | 285 (16.0) | 297 (16.6) | 0.587 | | CHD (%) | 816 (45.3) | 1994 (52.6) | <0.001 | 815 (45.6) | 821 (46.0) | 0.840 | | OMI (%) | 104 (5.8) | 333 (8.8) | <0.001 | 104 (5.8) | 104 (5.8) | 1.000 | | CABG (%) | 27 (1.5) | 97 (2.6) | 0.012 | 27 (1.5) | 27 (1.5) | 1.000 | | PCI (%) | 235 (13) | 696 (18.4) | <0.001 | 235 (13.2) | 229 (12.8) | 0.765 |
| | Medication used before admission | | Antiplatelet agent (%) | 669 (37.1) | 1646 (43.4) | <0.001 | 669 (37.5) | 678 (38.0) | 0.756 | | ACEI/ARB (%) | 697 (38.7) | 1483 (39.1) | 0.759 | 697 (39.0) | 720 (40.3) | 0.431 | | β-Blockers (%) | 154 (8.6) | 1378 (36.4) | <0.001 | 154 (8.6) | 605 (33.8) | <0.001 | | Statins (%) | 595 (33.0) | 1345 (35.5) | 0.072 | 594 (33.3) | 601 (33.7) | 0.804 |
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Data are presented as mean ± SD, IQR, or n (%). BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; DM, diabetes mellitus; CHD, coronary heart disease; OMI, old myocardial infarction; CABG, coronary artery bypass grafting; PCI, percutaneous coronary intervention; ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin II receptor blocker.
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