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Correlation between patient improvement and Leicester Cough Questionnaire (LCQ) and the Cough Numeric Rating Scale (NRS-cough). a) Change (Δ) LCQ (n=806), mean±sd 2.6±2.9, median (range) 2.4 (0.6–0.4); b) Δ NRS-cough (n=1734), mean±sd −1.7±2.3, median (range) −2.0 (−4.0–0.0); c) the correlation of baseline LCQ with Δ LCQ; d) the correlation of baseline NRS-cough with Δ NRS-cough.
