Table 2.
Odds ratio for PCI on the basis of patient and hospital-level characteristics
| Total | OR (95% CI) | P | ||
|---|---|---|---|---|
| PCI | No PCI | |||
| N = 6420 | N = 5401 | |||
| Patient characteristics | ||||
| Sex | ||||
| Male | 3984 | 2866 | Reference | |
| Female | 2436 | 2535 | 0.69 (0.64–0.74) | <.001 |
| Age | ||||
| 65–75 | 814 | 579 | Reference | |
| 75–79 | 2498 | 2001 | 0.89 (0.79–1.00) | .056 |
| 80–84 | 2111 | 1794 | 0.84 (0.74–0.95) | .005 |
| ≥ 85 | 997 | 1027 | 0.69 (0.60–0.79) | <.001 |
| Economic status | ||||
| Low | 2492 | 2235 | Reference | |
| Middle | 3440 | 2805 | 1.10 (1.02–1.19) | .014 |
| High | 488 | 361 | 1.21 (1.05–1.41) | .011 |
| Type of ACS | ||||
| STEMI/ unstable angina | 2451 | 910 | Reference | |
| Others | 3969 | 4491 | 0.33 (0.30–0.36) | <.001 |
| Comorbidities | ||||
| Hypertension | 6077 | 4976 | 1.51 (1.31–1.75) | <.001 |
| Dyslipidemia | 3838 | 2937 | 1.25 (1.16–1.34) | <.001 |
| CCI | ||||
| No | 155 | 177 | Reference | |
| Mild | 1593 | 1337 | 1.36 (1.08–1.71) | .008 |
| Moderate | 1976 | 1717 | 1.31 (1.05–1.65) | .017 |
| Severe | 2696 | 2170 | 1.42 (1.14–1.77) | .002 |
| Hospital characteristics | ||||
| Number of beds | ||||
| ≤ 199 | 475 | 561 | Reference | |
| 200–399 | 2408 | 1811 | 1.57 (1.37–1.80) | <.001 |
| ≥ 400 | 3537 | 3029 | 1.38 (1.21–1.57) | <.001 |
| Ownership | ||||
| Public | 1738 | 1342 | ||
| Private | 4682 | 4059 | 0.89 (0.82–0.97) | .006 |
| Hospital physician density | ||||
| Low | 2228 | 1930 | Reference | |
| Middle | 2414 | 2377 | 0.88 (0.81–0.96) | .003 |
| High | 1778 | 1094 | 1.41 (1.28–1.55) | <.001 |
PCI percutaneous coronary intervention, ACS acute coronary syndromes, STEMI ST-elevation myocardial infarction, CCI Charlson Comorbidity Index, OR odds ratio, CI confidence interval