Comparison of pre- and post-treatment cough frequency and cough quality of life and laryngeal hypersensitivity
| Pre GEM±GSD# | Post GEM±GSD# | Change GEM (se) | 95% CI | p-value¶ paired t-test | |
| Coughs per h | 10.5±3.1+ | 4.0±3.4 | 2.6 (1.2) | 1.9 to 3.7 | <0.001 |
| LCQ | 12.5±3.3 | 16.4±3.5 | 3.9 (0.6) | 2.8 to 5.0 | <0.001 |
| LHQ | 14.5±3.1 | 16.8±3.2 | 2.3 (0.05) | 1.3 to 3.2 | <0.001 |
GEM: geometric mean; GSD: geometric standard deviation; se: standard error; CI: confidence interval; LCQ: Leicester Cough Questionnaire; LHQ: Laryngeal Hypersensitivity Questionnaire. #: n=50; ¶: p-value was calculated using a paired sample t-test. +: the pre-treatment value in table 5 differs from the pre-treatment value reported in table 4 because not all patients had post-treatment cough frequency data.