Table 1.
Basic clinical features and HUTT results of the patients.
| Parameter | Syncope group (n = 768) | Nonsyncope group (n = 4,105) | P-value |
|---|---|---|---|
| Age (years) | 41.6 ± 19.2 | 49.6 ± 17.0 | <0.001 |
| Male | 365 (47.5) | 1,699 (41.4) | 0.002 |
| First consultation department | |||
| Department of Cardiology | 276 (35.9) | 1,738 (42.3) | 0.001 |
| Department of Neurology | 387 (50.4) | 2,026 (49.4) | 0.598 |
| Other departments | 105 (13.7) | 341 (8.3) | <0.001 |
| Positive HUTT | 506 (65.9) | 1,837 (44.8) | <0.001 |
| Positive types of HUTT | |||
| Mixed type | 331 (43.1) | 929 (22.6) | <0.001 |
| Cardioinhibitory type | 9 (1.2) | 25 (0.6) | 0.085 |
| Vasodepressor type | 107 (13.9) | 473 (11.5) | 0.058 |
| POTS | 26 (3.4) | 153 (3.7) | 0.644 |
| OH | 33 (4.3) | 257 (6.3) | 0.035 |
| Decrease in SBP (mmHg) | 43.8 ± 18.7 | 42.8 ± 18.5 | 0.707 |
| Decrease in HR (bpm) | 44.7 ± 18.0 | 40.7 ± 18.3 | 0.782 |
HUTT, head-up tilt test; POST, postural tachycardia syndrome; OH, orthostatic hypotension; SBP, systolic blood pressure; HR, heart rate; bpm, beats per min.