Among patients with asthma, those with chronic cough vs. without chronic cough had worse respiratory symptoms, more health care use, lower lung function and higher levels of inflammatory biomarkers, according to a Danish study published in the Journal of Allergy and Clinical Immunology: In Practice.
Specifically, patients with asthma and chronic cough, as compared with those with asthma but without chronic cough, experienced more wheezing (70% vs. 54%; P < .05), dyspnea (74% vs. 49%; P < .005), night-time dyspnea (27% vs. 11%; P < .001), sputum production (59% vs. 14%; P < .005) and chest pain or tightness (14% vs. 4%; P < .005).
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