Table 1.
Participant characteristics (N = 49).
| Age, years, mean (SD) | 64.8 (11.4) |
|---|---|
| Female, n (%) | 36 (73.5) |
| Black race, n (%) | 20 (40.8) |
| Obesity, n (%) | 39 (79.6) |
| History of tobacco use, n (%) | 23 (46.9) |
| Hypertension, n (%) | 46 (93.9) |
| Systolic blood pressure, mmHg, mean (SD) | 159.8 (24.5) |
| Diastolic blood pressure, mmHg, mean (SD) | 90.9 (15.8) |
| Heart rate, beats per minute, mean (SD) | 103.5 (16.4) |
| Total cholesterol, mg/dL, mean (SD) | 157.4 (36.3) |
| HDL cholesterol, mg/dL, mean (SD) | 48.7 (13.2) |
| LDL cholesterol, mg/dL, mean (SD) | 83.4 (33.1) |
| Triglycerides, mg/dL, mean (SD) | 131.0 (55.9) |
| Diabetes, n (%) | 26 (53.1) |
| Hemoglobin A1c,%, mean (SD) | 6.8 (1.7) |
| Coronary artery disease, n (%) | 10 (20.41) |
| Atrial fibrillation, n (%) | 12 (24.5) |
| Obstructive sleep apnea, n (%) | 33 (70.2) |
| Possession of CPAP, n (%) | 31 (64.6) |
| Adherence to CPAPa, n (%) | 20 (64.5) |
| eGFR, mL/min/1.73 m2, mean (SD) | 57.9 (21.1) |
| NYHA class, n (%) | |
| 1 | 0 (0) |
| 2 | 24 (51.1) |
| 3 | 22 (46.8) |
| 4 | 1 (2.1) |
| HF admissions in past last year, n (%) | |
| 0 | 12 (38.7) |
| 1 | 15 (48.4) |
| 2 | 3 (9.7) |
| 3 | 1 (3.2) |
| Multidimensional sleep score, mean (SD) | 2.9 (1.4) |
| Night movement index, mean (SD) | 24.2 (13.8) |
| Sleep fragmentation index, mean (SD) | 38.8 (18.8) |
| Berlin Questionnaire, high risk, n (%) | 42 (85.7) |
Note. Continuous variables are presented as mean (standard deviation) and categorical variables are presented as frequency (percentage).
CPAP = continuous positive airway pressure; eGFR=estimated glomerular filtration rate; HDL=high-density lipoprotein cholesterol; LDL=low-density lipoprotein cholesterol; NYHA=New York Heart Association; SD=standard deviation.
a
Defined by US Center for Medicare and Medicaid Services criteria of 70% of nights with 4 h/night of CPAP use. Denominator only includes those that endorsed possession of CPAP.