Table 1 Characteristics of the study patients before and after propensity score matching
Variable | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
Statin (n = 611) | Non-statin (n = 1370) | P value | Statin (n = 441) | Non-statin (n = 441) | P value | |
Age (year) | 64.6 ± 10.2 | 67.5 ± 10.1 | <.001 | 65.8 ± 10.2 | 65.6 ± 10.1 | .844 |
Age group (years) | <.001 | .933 | ||||
21–60 | 210 (34.4) | 324 (23.6) | 131 (29.7) | 136 (30.8) | ||
61–80 | 365 (59.7) | 891 (65.0) | 276 (62.6) | 271 (61.5) | ||
> 80 | 36 (5.9) | 155 (11.3) | 34 (7.7) | 34 (7.7) | ||
Gender | .038 | .636 | ||||
Male | 323 (52.9) | 793 (57.9) | 236 (53.5) | 243 (55.1) | ||
Female | 288 (47.1) | 577 (42.1) | 205 (46.5) | 198 (44.9) | ||
Dialysis | .033 | 1.000 | ||||
Hemodialysis | 558 (91.3) | 1287 (93.9) | 402 (91.2) | 402 (91.2) | ||
Peritoneal dialysis | 53 (8.7) | 83 (6.1) | 39 (8.8) | 39 (8.8) | ||
Dialysis duration (year) | 3.1 ± 2.9 | 3.1 ± 3.1 | .949 | 3.3 ± 3.0 | 3.3 ± 3.3 | .860 |
Diabetes mellitus duration (year) | 11.3 ± 3.4 | 10.1 ± 3.8 | <.001 | 11.2 ± 3.3 | 11.3 ± 3.4 | .563 |
Comorbidity | ||||||
Hypertension | 512 (83.8) | 1045 (76.3) | <.001 | 367 (83.2) | 363 (82.3) | .721 |
Dyslipidemia | 428 (70.0) | 412 (30.1) | <.001 | 259 (58.7) | 254 (57.6) | .733 |
Heart failure | 347 (56.8) | 640 (46.7) | <.001 | 231 (52.4) | 230 (52.2) | .946 |
Old myocardial infarction | 209 (34.2) | 505 (36.9) | .256 | 156 (35.4) | 141 (32.0) | .285 |
Atrial fibrillation | 49 (8.0) | 113 (8.2) | .864 | 35 (7.9) | 33 (7.5) | .801 |
Peripheral arterial disease | 99 (16.2) | 228 (16.6) | .808 | 69 (15.6) | 70 (15.9) | .926 |
Chronic obstructive pulmonary disease | 42 (6.9) | 110 (8.0) | .372 | 30 (6.8) | 29 (6.6) | .893 |
Malignancy | 45 (7.4) | 107 (7.8) | .731 | 33 (7.5) | 34 (7.7) | .899 |
Cirrhosis | 6 (1.0) | 46 (3.4) | .002 | 6 (1.4) | 6 (1.4) | 1.000 |
Gout | 43 (7.0) | 90 (6.6) | .700 | 28 (6.3) | 33 (7.5) | .507 |
Previous PCI | 201 (32.9) | 385 (28.1) | .031 | 143 (32.4) | 136 (30.8) | .612 |
Previous CABG | 49 (8.0) | 97 (7.1) | .460 | 33 (7.5) | 32 (7.3) | .897 |
Old ischemic stroke | 172 (28.2) | 420 (30.7) | .260 | 124 (28.1) | 130 (29.5) | .655 |
Old hemorrhage stroke | 16 (2.6) | 33 (2.4) | .781 | 12 (2.7) | 10 (2.3) | .666 |
History of bleeding (major bleeding) | 308 (50.4) | 693 (50.6) | .943 | 227 (51.5) | 223 (50.6) | .788 |
Medication | ||||||
Aspirin | 429 (70.2) | 648 (47.3) | <.001 | 287 (65.1) | 291 (66.0) | .777 |
Clopidogrel | 494 (80.9) | 670 (48.9) | <.001 | 338 (76.6) | 331 (75.1) | .582 |
Warfarin | 12 (2.0) | 15 (1.1) | .123 | 11 (2.5) | 9 (2.0) | .651 |
ACEI/ARB | 343 (56.1) | 481 (35.1) | <.001 | 220 (49.9) | 226 (51.2) | .686 |
β-blocker | 370 (60.6) | 487 (35.5) | <.001 | 239 (54.2) | 225 (51.0) | .345 |
Sulfonylurea | 122 (20.0) | 189 (13.8) | <.001 | 91 (20.6) | 86 (19.5) | .674 |
Thiazolidinediones | 13 (2.1) | 38 (2.8) | .402 | 12 (2.7) | 11 (2.5) | .833 |
Insulin | 276 (45.2) | 472 (34.5) | <.001 | 185 (42.0) | 177 (40.1) | .584 |