Echocardiogram baseline results
| Mild OSA (n = 17) | Moderate OSA (n = 18) | Severe OSA (n = 21) | |
| Left ventricular mass index (g/m2) | 83.4 (20.0) | 83.6 (12.2) | 94.0 (27.0) |
| E velocity (cm/s) | 73.8 (17.8) | 74.4 (18.9) | 68.1 (14.6) |
| A velocity (cm/s) | 64.6 (14.1) | 71.2 (19.3) | 74.3 (19.5) |
| E/A ratio | 1.2 (0.4) | 1.1 (0.3) | 1.0 (0.3) |
| E mitral deceleration time (ms) | 189.2 (34.5) | 231.8 (45.2) | 247.6 (48.2)* |
| E/E′ ratio | 9.7 (1.9) | 10.4 (3.1) | 11.6 (3.6)* |
| Averaged E′ velocity (cm/s) | 7.7 (1.5) | 7.3 (2.0) | 6.2 (1.8)*† |
| Averaged A′ velocity (cm/s) | 6.1 (1.4) | 6.8 (1.7) | 8.2 (1.9)*† |
| E′/A′ ratio | 1.3 (0.4) | 1.1 (0.3) | 0.8 (0.3)*† |
| S velocity (cm/s) | 7.4 (2.1) | 8.1 (2.5) | 7.6 (1.7) |
| 3D LA maximum volume (ml) | 37.1 (14.7) | 40.8 (8.9) | 57.6 (31.0)*† |
| 3D LA minimum volume (ml) | 13.9 (5.5) | 16.6 (4.0) | 24.5 (20.9)*† |
| 3D volume before LA contraction (ml) | 24.3 (10.2) | 24.7 (5.4) | 44.2 (28.4)*† |
*Different from mild, p<0.05; †different from moderate, p<0.05.