Table 4.
The optimal cutoffs of complexity (column A) within last 300 seconds before the termination of HUTT, corresponding sensitivity and specificity (column B), specificity in term sensitivity over 80% (column C), and sensitivity in term specificity over 80% (column D).
| time to HUTT_end (seconds) | Column A -optimal cutoff | Column B -sensitivity/specificity for optimal cutoff | Column C -cutoff (specificity) when sensitivity over 80% | Column D -cutoff (sensitivity) when specificity over 80% | |
|---|---|---|---|---|---|
| 300 | Complexity (bits) | 199.3 | 83%/26% | 193.8 (26%) | 689.2 (20%) |
|
| |||||
| 270 | Complexity (bits) | 231.7 | 78%/44% | 194.3 (26%) | 715.7 (30%) |
|
| |||||
| 240 | Complexity (bits) | 246.9 | 76%/56% | 208.8 (48%) | 611.5 (51%) |
|
| |||||
| 210 | Complexity (bits) | 231.7 | 78%/44% | 188.5 (26%) | 713.7 (26%) |
|
| |||||
| 180 | Complexity (bits) | 598.0 | 50%/85% | 230.4 (41%) | 591.1 (50%) |
|
| |||||
| 150 | Complexity (bits) | 319.1 | 61%/70% | 184.2 (33%) | 470.1 (48%) |
|
| |||||
| 120 | Complexity (bits) | 411.5 | 63%/78% | 240.6 (52%) | 523.7 (52%) |
|
| |||||
| 90 | Complexity (bits) | 456.5 | 65%/74% | 130.8 (37%) | 586.1 (50%) |
|
| |||||
| 60 | Complexity (bits) | 385.6 | 82%/67% | 385.6 (67%) | 584.2 (59%) |
|
| |||||
| 30 | Complexity (bits) | 545.7 | 69%/74% | 371.7 (59%) | 753.0 (54%) |
HUTT, head-up tilt test.