2023
DOI: 10.1097/cm9.0000000000002487
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Does the 2017 global initiative for chronic obstructive lung disease revision really improve the assessment of Chinese chronic obstructive pulmonary disease patients? A multicenter prospective study for more than 5 years

Abstract: Background:The Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 proposed a new classification that reclassified many chronic obstructive pulmonary disease (COPD) patients from group D to B. However, there is a paucity of data related to the comparison between reclassified and non-reclassified COPD patients in terms of long-term prognosis. This study aimed to investigate long-term outcomes of them and determine whether the GOLD 2017 revision improved the assessment of COPD patients.Methods:Thi… Show more

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“…All pulmonary function tests were performed by laboratory technicians at the pulmonary clinics. Trained research assistants collected the data, and the variables were checked by trained doctors [ 15 ].…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…All pulmonary function tests were performed by laboratory technicians at the pulmonary clinics. Trained research assistants collected the data, and the variables were checked by trained doctors [ 15 ].…”
Section: Methodsmentioning
confidence: 99%
“…Exacerbation was defined as acute worsening of respiratory symptoms that required a short-acting bronchodilator only (mild), short-acting bronchodilator plus antibiotic and/or oral corticosteroid (moderate), or hospitalisation/emergency department visit (severe) [ 15 , 16 ]. We followed up with all patients for >12 months.…”
Section: Methodsmentioning
confidence: 99%