Table 2.
Selected Characterization of Study Participants by Cardiovascular Medication Use
| Variable | Cardiovascular medication use |
P valuea | |
|---|---|---|---|
| No (n = 78) | Yes (n = 51) | ||
| Age, y | 71.7 ± 8.1 | 73.9 ± 8.3 | 0.128 |
| Women, % | 62 | 59 | 0.758 |
| Cardiovascular event or procedure, %b | 4 | 33 | 0.0001 |
| Angina, %b,c | 4 | 14 | 0.041 |
| BMI, kg/m2 | 24.9 ± 4.1 | 25.7 ± 5.8 | 0.378 |
| Systolic or diastolic hypertension, %d | 19 | 39 | 0.013 |
| Fasting blood glucose, mg/dL | 99.4 ± 19.0 | 107.6 ± 31.6 | 0.069 |
| Abnormal ECG, %e | 32 | 73 | 0.001 |
| AHI | 5.2 ± 9.5 | 9.3 ± 13.1 | 0.062 |
| ODI | 1.1± 2.4 | 3.4 ± 7.5 | 0.013 |
| AHI ≥ 10, %f | 12 | 29 | 0.011 |
Data are presented as mean ± SD unless otherwise indicated. BMI refers to body mass index; ODI, oxygen desaturation index (the number of oxygen desaturations ≥ 4% per hour of sleep).
a
Comparisons employed 2-tailed t-tests for continuous measures and χ2 for categorical measures.
b
By history.
c
As determined by response to the Rose questionnaire.
d
Systolic blood pressure ≥ 140 mm Hg or diastolic blood pressure ≥ 90 mm Hg.
e
Includes atrial fibrillation, t-wave abnormalities, atrioventricular block, or left-axis deviation.
f
AHI (apnea-hypopnea index) is defined as the number of apnea and hypopnea events per hour of sleep.