Table 1b.
Baseline characteristics by gender (N =1173)
| All | Men | Women | P value | |||
|---|---|---|---|---|---|---|
| 1173 | 523 (44.6) | 650 (55.4) | ||||
| Mean (SD) Median [IQR] |
Mean (SD) Median [IQR] |
Range | Mean (SD) Median [IQR] |
Range | ||
| AHI (/hour) | 13.8 (16.1) 7.9 [2.9–18.0] |
18.2 (18.4) 12.6 [4.8–24.6] |
0–102.9 | 10.4 (13.0) 5.9 [2.1–13.2] |
0–95.5 | <0.0001 |
| RRD (msec) | 119.6 (16.1) | 120.2 (17.1) | 75.2–187 | 119.1 (15.4) | 75.5–189.5 | 0.3 |
| RR distance (cm) | 65.3 (3.7) | 67.8 (3.1) | 60.7–77.3 | 63.2 (2.7) | 54–72.4 | <0.0001 |
| Age (years) | 67.8 (8.8) | 67.7 (9.1) | 54–92 | 67.8 (8.6) | 54–93 | 0.9 |
| BMI (kg/m2) | 27.4 (4.9) | 27.7 (4.2) | 16.3–39.9 | 28.3 (5.7) | 16.8–49.8 | 0.03 |
| MAP (mm Hg) | 95.4 (11.9) | 97.3 (11.6) | 64–138 | 93.8 (11.9) | 67–139 | <0.0001 |
| LVEF (%) | 62.0 (7.2) | 59.7 (7.2) | 30.9–80.3 | 63.9 (6.6) | 43.5–82.6 | <0.0001 |
| LVEDV (ml) | 119.3 (31.6) | 135.7 (33.4) | 59.2–310.2 | 106.1 (22.8) | 37.4–203.1 | <0.0001 |
| N (%) | ||||||
| Race | 0.3 | |||||
| White | 439 (37.4) | 187 (35.8) | 252 (38.8) | |||
| Chinese | 159 (13.6) | 76 (14.5) | 83 (12.8) | |||
| Black | 310 (26.4) | 131 (25.1) | 179 (27.5) | |||
| Hispanic | 265 (22.6) | 129 (24.7) | 136 (20.9) | |||
| Smoking (Current) | 78 (6.7) | 40 (7.7) | 38 (5.9) | 0.2 | ||
| Hypertension | 625 (53.3) | 360 (55.4) | 265 (50.7) | 0.1 | ||
| Diabetes | 185 (15.9) | 100 (15.5) | 85 (16.3) | 0.7 | ||
SDB, sleep disordered breathing; AHI, apnea hypopnea index; BMI, body mass index; MAP, mean arterial pressure; LVEF, left ventricular ejection fraction; LVEDV, left ventricular end diastolic volume; RRD, ECG R-wave to Radial Artery Pulse Delay (unit: msec); RR distance, radial pulse transit path distance. P value is based on independent t test and Chi-square test for continuous and categorical variables respectively.