“…Nasal inflammation is present in healthy smokers and to a further extent in COPD patients, especially in those who continue to smoke . However, only a few studies with relatively small numbers of COPD patients assessed the frequency and impact of CNS on pulmonary symptoms and QoL A recent review underlined that more studies are needed to assess the impact of nasal symptoms on the QoL in COPD patients . Therefore, the present analyses were designed to investigate, in a series of well‐defined COPD patients, the prevalence of and risk factors for CNS, and their association with dyspnoea and QoL.…”