Table 1. Demographic characteristics of CAD patients.
Data are presented as n (%) or means ± standard deviation. CAD, coronary artery disease; AMI, acute myocardial infarction; DM, diabetes mellitus; HTN, hypertension; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease.
| Before propensity-score matching (n = 56,263) | After propensity-score matching (n = 11,739) | |||||
|---|---|---|---|---|---|---|
| Characteristic | Case (AMI[+]) | Control (AMI[−]) | P-value | Case (AMI[+]) | Control (AMI[−]) | P-value |
| Number of patients | 1,683 | 54,580 | 1,677 | 10,062 | ||
| Age (year) | 65.47 ± 12.66 | 57.24 ± 15.67 | <0.0001 | 65.46 ± 12.68 | 65.63 ± 12.80 | 0.6023 |
| 0–49 | 204 (12.12) | 17,205 (31.52) | <0.0001 | 204 (12.16) | 1,184 (11.77) | 0.7893 |
| 50–64 | 553 (32.86) | 18,805 (34.45) | 552 (32.92) | 3,266 (32.46) | ||
| ≥ 65 | 926 (55.02) | 18,570 (34.02) | 921 (54.92) | 5,612 (55.77) | ||
| Follow up duration (year) | 3.30 ± 2.97 | 3.30 ± 2.97 | 1.0000 | |||
| Gender | ||||||
| Male | 1,087 (64.59) | 26,559 (48.66) | <0.0001 | 1,081 (64.46) | 6,586 (65.45) | 0.4286 |
| Female | 596 (35.41) | 28,021 (51.34) | <0.0001 | 596 (35.54) | 3,476 (34.55) | |
| Comorbidities | ||||||
| DM | 563 (33.45) | 7,428 (13.61) | <0.0001 | 557 (33.21) | 3,233 (32.13) | 0.3797 |
| HTN | 852 (50.62) | 18,473 (33.85) | <0.0001 | 846 (50.45) | 5,039 (50.08) | 0.7804 |
| CHF | 150 (8.91) | 1,593 (2.92) | <0.0001 | 144 (8.59) | 805 (8.00) | 0.4148 |
| Renal disease | 138 (8.20) | 1,555 (2.85) | <0.0001 | 132 (7.87) | 701 (6.97) | 0.1817 |
| Stroke | 229 (13.61) | 3,573 (6.55) | <0.0001 | 227 (13.54) | 1,339 (13.31) | 0.7988 |
| Cancer | 43 (2.55) | 1,264 (2.32) | 0.5213 | 43 (2.56) | 256 (2.54) | 0.9618 |
| Liver disease | 83 (4.93) | 3,522 (6.45) | 0.0121 | 83 (4.95) | 467 (4.64) | 0.5804 |
| COPD | 199 (11.82) | 4,343 (7.96) | <0.0001 | 197 (11.75) | 1,154 (11.47) | 0.7409 |