| Good response (n = 46) | Partial response (n = 23) | No response (n = 25) | p Value | |
| Mean age, years | 57.6 (±11.3) | 56.5 (±11.2) | 54.2 (±8.6) | 0.43 |
| Gender (% female) | 68.0% | 69.6% | 60.0% | 0.75 |
| Median pretreatment cough rate (coughs/h) | 12.0 (2.2 to 64.7) | 16.5 (6.5 to 140.8) | 16.7 (0.3 to 90.6) | 0.36 |
| Median posttreatment cough rate (coughs/h) | 4.4 (0.4 to 25.7) | 14.0 (0.8 to 71.5) | 14.3 (0.5 to 24.0) | 0.01 |
| Median % change in cough rate | −65.5% (−93.0% to 18.4%) | −14.1% (−91.0% to 105.0%) | −14.1% (−60.0% to 66.7%) | 0.001 |
| Mean pretreatment LCQ | 12.6 (±3.4) | 12.3 (±2.3) | 11.1 (±4.3) | 0.23 |
| Mean posttreatment LCQ | 16.9 (±3.6) | 14.3 (±2.8) | 11.4 (±3.1) | 0.001 |
| Median change in LCQ | 4.1 (−4.7 to 11.6) | 2.0 (−1.2 to 23.2) | 0.1 (−6.5 to 4.8) | 0.001 |
LCQ, Leicester cough questionnaire.