Table 2.
Comparison of patients with and without obstructive sleep apnea (OSA)
| Parameter; mean ± SD or n (%) | OSA+ (n = 115) | OSA– (n = 136) | p value |
|---|---|---|---|
| AHI (per hour) | 15.4 ± 12.2 | 1.9 ± 1.4 | – |
| Lowest SpO2 (%) | 81.8 ± 6.5 | 86.5 ± 5.0 | <0.0001 |
| Time in desaturation (min) | 26.8 ± 43.1 | 12.3 ± 36.2 | <0.0001 |
| Percent time in desaturation (%) | 5.8 ± 10.0 | 3.2 ± 9.9 | <0.0001 |
| Oxygen desaturation events (per hour) | 15.9 ± 13.0 | 3.1 ± 3.3 | <0.0001 |
| Snoring percent time | 12.4 ± 19.7 | 10.6 ± 18.6 | 0.11 |
| AF recurrence | 75 (65.2 %) | 62 (45.6 %) | 0.003 |
| Male sex; n (%) | 80 (69.6 %) | 83 (61.0 %) | 0.20 |
| Age (years) | 59.7 ± 7.8 | 55.7 ± 11.3 | 0.01 |
| Height (cm) | 172.0 ± 9.9 | 172.0 ± 10.7 | 0.97 |
| Weight (kg) | 91.1 ± 17.0 | 84.6 ± 15.3 | 0.002 |
| Body mass index (kg/m2) | 30.8 ± 5.3 | 28.5 ± 4.1 | 0.0002 |
| Neck circumference (cm) | 41.2 ± 3.8 | 39.3 ± 3.3 | 0.0001 |
| Waist circumference (cm) | 108.6 ± 12.6 | 107.6 ± 88.1 | <0.0001 |
| SBP (mm Hg) | 132.9 ± 16.7 | 130.3 ± 16.3 | 0.23 |
| DBP (mm Hg) | 82.0 ± 11.5 | 79.4 ± 10.7 | 0.06 |
| HR (beats per min) | 76.5 ± 17.4 | 73.3 ± 13.6 | 0.13 |
| Prior MI | 9 (7.8 %) | 11 (8.1 %) | 0.87 |
| Diabetes mellitus | 12 (10.4 %) | 9 (6.6 %) | 0.39 |
| Hypertension | 91 (79.1 %) | 92 (67.6 %) | 0.06 |
| Gout | 11 (9.6 %) | 6 (4.4 %) | 0.17 |
| Smoking | 10 (8.7 %) | 18 (13.2 %) | 0.35 |
| Alcohol consumption | 13 (11.2 %) | 10 (7.4 %) | 0.39 |
| Prior stroke | 13 (11.3 %) | 8 (5.9 %) | 0.19 |
| Dyslipidemia | 74 (64.3 %) | 84 (61.8 %) | 0.77 |
| Family history of CVD | 41 (35.7 %) | 59 (43.4 %) | 0.39 |
| Paroxysmal AF | 73 (63.5 %) | 103 (75.7 %) | 0.05 |
Desaturation = blood O2 saturation <90 %
SD standard deviation, OSA obstructive sleep apnea, Lowest SpO 2 lowest registered blood oxygen saturation, SBP systolic blood pressure, DBP diastolic blood pressure, HR heart rate, MI myocardial infarction, CVD cardiovascular disease, AF atrial fibrillation
Values in bold indicate statistical significance