Figure 1From: Obstructive sleep apnoea: a cause of chronic coughImprovement in cough specific quality of life after (continuous positive airway pressure) CPAP therapy in patient 2. (a) Leicester Cough Questionnaire (LCQ) Domain scores. (Higher score = better quality of life: QOL) (b) LCQ total score. (Minimal important difference 1.3; higher score = better QOL).Back to article page