Table 1.
Baseline patient characteristics before and after matching.
| Variables | Unmatched cohort | Matched cohort | Standardized bias before match | Standardized bias after match | ||
|---|---|---|---|---|---|---|
| Thrombocytopenia (N = 32) | Control (N = 557) | Thrombocytopenia (N = 32) | Control (N = 160) | |||
| Age, years | 69.44 ± 10.10 | 68.19 ± 8.90 | 69.44 ± 10.10 | 69.20 ± 7.65 | 0.14 | 0.03 |
| Gender | 8 (25.00) | 214 (38.42) | 8 (25.00) | 43 (26.88) | 0.28 | 0.04 |
| CHA2DS2-VASC | 2.81 ± 1.09 | 3.07 ± 1.52 | 2.81 ± 1.09 | 2.84 ± 1.43 | 0.17 | 0.02 |
| HAS-BLED | 2.72 ± 0.89 | 2.59 ± 1.18 | 2.72 ± 0.89 | 2.79 ± 1.05 | 0.11 | 0.07 |
| Existing comorbidities, n (%) | ||||||
| HBP | 22 (68.75) | 370 (66.43) | 22 (68.75) | 110 (68.75) | 0.05 | 0 |
| DM | 11 (34.38) | 111 (19.93) | 11 (34.38) | 51 (31.88) | 0.36 | 0.05 |
| Previous bleeding history | 5 (15.63) | 58 (10.41) | 5 (15.63) | 33 (20.63) | 0.17 | 0.05 |
| Previous thromboembolism | 8 (25.00) | 246 (44.17) | 8 (25.00) | 44 (27.50) | 0.39 | 0.06 |
| Congestive heart failure | 1 (3.13) | 6 (1.08) | 2 (3.13) | 5 (3.13) | 0.03 | 0 |
| Abnormal liver function | 0 (0) | 5 (0.01) | 0 (0) | 0 (0) | 0.10 | 0 |
| Abnormal renal function | 1 (3.13) | 5 (0.01) | 1 (3.13) | 2 (1.25) | 0.24 | 0.17 |
| Creatinine, μmol/L | 94.47 ± 66.66 | 85.83 ± 33.54 | 94.47 ± 66.66 | 89.24 ± 31.57 | 0.26 | 0.17 |
| LVEF | 62.77 ± 7.01 | 62.81 ± 6.83 | 62.81 ± 6.90 | 62.83 ± 7.34 | 0 | 0 |
HBP, high blood pressure; DM, diabetes mellitus; LVEF, left ventricular ejection fraction.