Table 1.
Sample characteristics
| Variable | N | Mean and standard deviation | |
|---|---|---|---|
| Age | 905 | 57.13 +/− 11.30 | |
| BMI | 905 | 29.14 +/− 5.96 | |
| Diseases altering cardiac autonomic function |
High Blood pressure | 285 | NA |
| Heart Disease | 86 | ||
| Circulation problems | 53 | ||
| TIA or stroke | 29 | ||
| Depression | 175 | ||
| Diabetes | 92 | ||
| Cholesterol problems | 379 | ||
| Asthma | 103 | ||
| Emphysema/COPD | 25 | ||
| Thyroid disease | 113 | ||
| Medications altering cardiac autonomic control |
Yes | 310 | NA |
| No | 595 | ||
| Have any of the diseases/take any medications listed above |
Yes | 677 | NA |
| No | 228 | ||
| Sex | Male | 406 | NA |
| Female | 499 | ||
| Menopausal status | Pre-menopausal | 145 | NA |
| Peri-menopausal | 41 | ||
| Post-menopausal | 311 | ||
| Smoking | Never | 506 | NA |
| Smoker | 104 | ||
| Ex-smoker | 295 | ||
| Exercise/physical activity (hours per week) |
Vigorous | 905 | .96 +/− 2.92 |
| Moderate | 905 | 2.83 +/−5.61 | |
| Light | 905 | 1.712 +/− 4.45 | |