Table 3.
Factors Associated with the Presence of Angina 1-year After AMI
| OR (95% CI) | Chi-square value | p-value | |
|---|---|---|---|
| SAQ Angina Frequency (−10 pts) | 1.18 (1.11–1.26) | 25.6 | <0.001 |
| Age (+10 years) | 0.79 (0.69–0.90) | 11.8 | 0.001 |
| Prior bypass graft surgery | 1.67 (1.16–2.40) | 7.5 | 0.006 |
| Non-Caucasian race | 1.47 (1.08–1.99) | 6.2 | 0.013 |
| Chronic heart failure | 1.58 (1.03–2.42) | 4.5 | 0.035 |
| Currently working | 1.26 (0.94–1.69) | 2.4 | 0.125 |
| Current smoker | 1.26 (0.94–1.70) | 2.4 | 0.119 |
| Female | 1.26 (0.93–1.72) | 2.2 | 0.135 |
|
| |||
| Left ventricular systolic dysfunction | 0.76 (0.53–1.09) | 2.3 | 0.134 |
| High emotional stress (PSS-4 ≥ 9) | 1.34 (0.91–1.98) | 2.2 | 0.135 |
| Admission creatinine (+50%) | 0.91 (0.80–1.04) | 2.0 | 0.155 |
| Chronic lung disease | 1.40 (0.87–2.24) | 1.9 | 0.169 |
| Depression (PHQ-9 ≥ 10) | 1.21 (0.87–1.69) | 1.3 | 0.248 |
| Peripheral vascular disease | 1.34 (0.79–2.26) | 1.2 | 0.275 |
| Avoids care due to cost | 1.19 (0.86–1.66) | 1.1 | 0.292 |
| Body mass index (+5 kg/m2) | 0.95 (0.86–1.05) | 1.1 | 0.291 |
| In-hospital revascularization | 0.86 (0.64–1.18) | 0.9 | 0.351 |
| Hemoglobin A1c (+1%) | 0.97 (0.90–1.04) | 0.7 | 0.398 |
| Peak troponin (+100 ng/mL) | 0.92 (0.70–1.21) | 0.4 | 0.544 |
| Atrial fibrillation/flutter | 0.86 (0.48–1.54) | 0.3 | 0.615 |
| SAQ Quality of Life (−10 pts) | 1.02 (0.96–1.08) | 0.3 | 0.563 |
| Fasting glucose (+100 mg/dL) | 0.96 (0.79–1.16) | 0.2 | 0.669 |
| Health insurance | 0.95 (0.68–1.34) | 0.1 | 0.776 |
| Active during leisure time | 1.05 (0.75–1.48) | 0.1 | 0.774 |
| Prior myocardial infarction | 1.05 (0.75–1.45) | 0.1 | 0.790 |
| Prior coronary stenting | 1.04 (0.73–1.46) | 0.0 | 0.840 |
| Prior stroke/TIA | 1.03 (0.64–1.65) | 0.0 | 0.897 |
| ST-elevation myocardial infarction | 1.02 (0.74–1.38) | 0.0 | 0.923 |
| Admission hemoglobin (+1 mg/dL) | 0.99 (0.92–1.07) | 0.0 | 0.852 |
| Currently on insulin | 1.03 (0.75–1.43) | 0.0 | 0.841 |
Variables above the line comprise the reduced model (Supplemental Table 5)
Full model (apparent): c-index=0.74, calibration slope=1.00
Full model (bootstrap validated): c-index=0.71, calibration slope=1.00
Reduced model (apparent): c-index=0.71, calibration slope=1.00
Reduced model (bootstrap validated): c-index=0.69, calibration slope=1.02
Reduced model (externally validated): c-index=0.73, calibration slope=1.22