Table 2.
Average (SD) subjective UTC ratings (where 1 = no urge to cough and 10 = maximum urge to cough) and total cough count (CTot) at various concentrations of capsaicin in solution obtained from healthy controls (HCs) and participants with TBI.
| Capsaicin concentration (μM) | |||||
|---|---|---|---|---|---|
| 0 | 50 | 100 | 200 | 500 | |
| UTC (HC) | 1.09 (0.31) | 2.97 (1.11) | 4.12 (1.50) | 5.85 (1.85) | N/A∗ |
| UTC (TBI) | 1.25 (0.50) | 2.88 (0.98) | 3.25 (1.22) | 4.50 (1.68) | 4.79 (0.85) |
| CTot (HC) | 0.00 (0.00) | 3.06 (2.31) | 4.81 (3.12) | 6.19 (3.58) | N/A∗ |
| CTot (TBI) | 0.25 (0.5) | 1.13 (0.37) | 1.88 (1.07) | 2.83 (0.43) | 3.33 (0.72) |
∗500 μM capsaicin solution not administered to HC participants.