Table 1.
Comparison of SF-36 Survey Responders to Non-Responders
| Variables | SF 36 responders | SF 36 non-responders | P-value |
| Demographics | |||
| Mean patient age | 65.5 | 62.8 | <.01 |
| Male gender | 97.7% | 97.5% | 0.69 |
| Caucasian race | 78.4% | 80.0% | 0.21 |
| Prior Cardiac History | |||
| Hx of MI | 38.0% | 36.6% | 0.33 |
| Hx of Chronic heart failure | 18.2% | 18.3% | 0.90 |
| Hx of Coronary artery bypass graft surgery | 26.3% | 23.0% | 0.01 |
| Hx of Percutaneous coronary intervention | 17.2% | 12.6% | <.01 |
| Prior Non-Cardiac History | |||
| History of trauma | 0.4% | 0.7% | 0.31 |
| Substance or alcohol abuse | 15.6% | 21.0% | <.01 |
| Current smoker | 35.7% | 43.0% | <.01 |
| Dementia | 2.0% | 3.3% | <.01 |
| COPD | 29.7% | 26.1% | 0.01 |
| Stroke | 10.8% | 13.2% | 0.01 |
| Depression | 28.7% | 40.5% | <.01 |
| Arthritis | 54.8% | 54.4% | 0.92 |
| Diabetes mellitus | 31.6% | 32.0% | 0.73 |
| Peptic ulcer disease | 11.1% | 9.6% | 0.26 |
| Events during Index Admission and Interim Period* | |||
| Coronary revascularization during index admission | 26.6% | 23.9% | 0.05 |
| Cardiogenic shock | 1.1% | 1.1% | 0.94 |
| Hypotensive episode | 8.7% | 9.2% | 0.59 |
| Do not resuscitate order | 1.2% | 2.9% | <.01 |
| Positive stress test | 12.1% | 11.1% | 0.32 |
| Admitted to Tertiary VA | 63.9% | 69.5% | 0.01 |
| ST-segment elevation MI on ECG | 19.0% | 21.4% | 0.05 |
| Mean serum creatinine | 1.17 | 1.19 | 0.58 |
| Left bundle branch block on ECG | 3.6% | 3.2% | 0.52 |
| Cardiac catheterization during index admission | 33.4% | 31.4% | 0.16 |
| Discharge diagnosis Unstable Angina (vs. MI) | 49.4% | 46.5% | 0.06 |
* Interim period is defined as the time period between discharge from index ACS hospitalization and the 7-month HRQL survey assessment.
MI: myocardial infarction; Hx: History; COPD: chronic obstructive pulmonary disease; ECG: electrocardiogram