Demographic details and capsaicin cough indices
| Feature | All (n=28,15 F) | Normal swallow (n=15, 7F) | Abnormal swallow (n=13, 8F) | p Value |
|---|---|---|---|---|
| Age (mean (SD)) | 45.7 (12.0) | 45.6 (12.3) | 45.9 (12.1) | 0.96 |
| BMI (mean (SD)) | 23 (4) | 24 (4) | 22 (5) | 0.21 |
| Swallow speed (% predicted, median (IQR)) | 52 (22–92) | 99 (60–110) | 23 (11–37) | <0.001 |
| Volume/swallow (% predicted, median (IQR)) | 70 (42–105) | 106 (72–139) | 43 (21–58) | <0.001 |
| Vital capacity (% predicted, median (IQR)) | 72 (53–91) | 68 (63–96) | 75 (46–90) | 0.63 |
| Max inspiration (mm Hg, median (IQR)) | 58 (42–72) | 67 (47–89) | 56 (30–60) | 0.045 |
| Max expiration (mm Hg, median (IQR)) | 78 (39–98) | 81 (50–104) | 70 (22–87) | 0.29 |
| Capsaicin indices (mean (SD)) | ||||
| Log conc threshold (mean (SD)) | −0.296 (0.546) | −0.206 (0.565) | −0.399 (0.526) | 0.36 |
| Log conc 10 coughs/min (mean (SD)) | 0.125 (0.457) | 0.255 (0.418) | −0.026 (0.471) | 0.12 |
| Log conc 20 coughs/min (mean (SD)) | 0.409 (0.445) | 0.550 (0.384) | 0.245 (0.468) | 0.07 |
| Log conc slope (mean (SD)) | 1.041 (0.495) | 0.994 (0.456) | 1.095 (0.549) | 0.61 |
% predicted is adjusted for age and sex. Units of body mass index are kg/m2.