Table 3. Individual subject average results for regression against the image data of the end-tidal carbon dioxide (ETCO2) timecourse convolved with the determined ETCO2 response function.
Voxel count is the number of voxels in which the regression was statistically significant (p < 0.05). Max = maximum; F-stat is the F-statistic. R2 is the coefficient of multiple determination.
| Subject Number | Voxel Count | Max F-stat | Mean F-stat | Max R2 | Mean R2 |
|---|---|---|---|---|---|
| 1 | 24143 | 85.15 | 18.20 | 0.2905 | 0.0782 |
| 2 | 13709 | 61.25 | 10.20 | 0.2275 | 0.0460 |
| 4 | 13662 | 90.48 | 10.22 | 0.3031 | 0.0460 |
| 5 | 4902 | 30.09 | 6.87 | 0.1264 | 0.0318 |
| 6 | 2223 | 19.87 | 6.00 | 0.0872 | 0.0279 |
| 7 | 22643 | 98.89 | 20.20 | 0.3222 | 0.0851 |
| 8 | 10474 | 38.50 | 9.42 | 0.1562 | 0.0428 |
| 9 | 15580 | 47.64 | 11.00 | 0.1864 | 0.0495 |
|
| |||||
| Average | 13417 | 58.98 | 11.52 | 0.2124 | 0.0509 |