Table 1.
Characteristics of Women Undergoing Coronary Artery Bypass Surgery Compared with Women Undergoing No Cardiac Procedure
| Characteristic* | CABG ( = 137) | No procedure* ( = 2263) | -value (chi-sq or t-test) |
|---|---|---|---|
| Age (mean years, SD) | 66.6(6.9) | 66.6(6.8) | 0.99 |
| White, % | 92 | 89 | 0.27 |
| Married, % | 64 | 57 | 0.15 |
| ≥12 years education, % | 76 | 79 | 0.34 |
| Current tobacco use, % | 13 | 13 | 0.98 |
| History of diabetes, % | 34 | 22 | <.001 |
| Hypertension, % | 63 | 58 | 0.29 |
| Prior heart failure | 10 | 13 | 0.39 |
| Prior MI, % | 47 | 52 | 0.28 |
| Prior revascularization, % | 0.002 | ||
| None | 39 | 27 | |
| PTCA | 32 | 31 | |
| CABG | 29 | 42 | |
| Severity of chest discomfort,% | <.001 | ||
| None | 47 | 67 | |
| Atypical (non-exertional) | 20 | 15 | |
| With strenuous activity | 9 | 4 | |
| With moderate activity | 13 | 6 | |
| With minimal activity | 4 | 3 | |
| With any activity/rest | 6 | 3 | |
| Frequency of chest discomfort | <.001 | ||
| Not at all | 48 | 67 | |
| 1–3 times in past 4 weeks | 24 | 20 | |
| 1–3 times a week | 14 | 7 | |
| Almost daily | 10 | 3 | |
| 1–3 times a day | 3 | 1 | |
| 4 or more times a day | 1 | 0 | |
| History of unstable angina, % | 31 | 4 | <.001 |
| Assigned to HRT, % | 44% | 50% | 0.14 |
| Baseline HRQOL scores | |||
| Physical function | 23.7 | 25.7 | .15 |
| Energy-Fatigue | 51.6 | 56.1 | .008 |
| Mental Health | 72.6 | 76.0 | .02 |
*No procedure group excluded subjects undergoing PTCA during follow-up
*Characteristics of Subjects at time of randomization into HERS study