Positive HUT (n = 42) | Negative HUT (n = 27) | p Value | |
---|---|---|---|
Sex (F/M) | 22/20 | 12/15 | NS |
Age (years) | 39 (18) | 42 (19) | NS |
Number of syncopal episodes | 3.6 (5.4) | 4.5 (7.0) | NS |
Associated presyncope | 29/42 | 18/27 | NS |
Injury | 17/42 | 10/27 | NS |
Seizures | 6/42 | 3/27 | NS |
Heart rate (beats/min) | 71 (14) | 70 (10) | NS |
Systolic BP (mm Hg) | 130 (24) | 136 (21) | NS |
Diastolic BP (mm Hg) | 76 (16) | 79 (16) | NS |
LFPP(beats/min2) | 6.7 (3.4) | 6.8 (4.1) | NS |
HFPP (beats/min2) | 2.8 (1.6) | 2.7 (1.7) | NS |
LFPP/HFPP | 2.7 (1.5) | 2.8 (1.5) | NS |
LFBA (beats/min2/Hz) | 0.5 (0.3) | 0.5 (0.3) | NS |
HFBA(beats/min2/Hz) | 0.4 (0.2) | 0.4 (0.2) | NS |
LFBA/HFBA | 1.3 (0.5) | 1.3 (0.5) | NS |
Values are mean (SD) or n.
BA, bandwidth area; BP, blood pressure; HF, high frequency (0.15 to 0.4 Hz); LF, low frequency (0.04 to 0.15 Hz); PP, power peak.