Pernilla Sönnerfors, Petra Kristina Jacobson, Anders Andersson, Annelie Behndig, Leif Bjermer, Anders Blomberg, Heléne Blomqvist, Jonas Erjefält, Maria Friberg, Kristina Lamberg Lundström, Anna Lundborg, Andrei Malinovschi, Hans Lennart Persson, Ellen Tufvesson, Åsa Wheelock, Christer Janson, Carl Magnus Sköld
{"title":"从瑞典慢性阻塞性肺病生物图像研究（SCAPIS）大型人群队列中招募从未吸烟的慢性阻塞性肺病患者所面临的挑战。","authors":"Pernilla Sönnerfors, Petra Kristina Jacobson, Anders Andersson, Annelie Behndig, Leif Bjermer, Anders Blomberg, Heléne Blomqvist, Jonas Erjefält, Maria Friberg, Kristina Lamberg Lundström, Anna Lundborg, Andrei Malinovschi, Hans Lennart Persson, Ellen Tufvesson, Åsa Wheelock, Christer Janson, Carl Magnus Sköld","doi":"10.1080/20018525.2024.2372903","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>A substantial proportion of individuals with COPD have never smoked, and it is implied to be more common than previously anticipated but poorly studied.</p><p><strong>Aim: </strong>To describe the process of recruitment of never-smokers with COPD from a population-based cohort (<i>n</i> = 30 154).</p><p><strong>Methods: </strong>We recruited never-smokers with COPD, aged 50-75 years, from six University Hospitals, based on: 1) post broncho-dilator forced expiratory volume in 1 second/forced vital capacity (FEV<sub>1</sub>/FVC) < 0.70 and 2) FEV<sub>1</sub> 50-100% of predicted value and 3) being never-smokers (self-reported). In total 862 SCAPIS participants were identified, of which 652 were reachable and agreed to a first screening by telephone. Altogether 128 (20%) were excluded due to previous smoking or declined participation. We also applied a lower limit of normal (LLN) of FEV<sub>1</sub>/FVC (z-score<-1.64) according to the Global Lung Initiative to ensure a stricter definition of airflow obstruction.</p><p><strong>Results: </strong>Data on respiratory symptoms, health status, and medical history were collected from 492 individuals, since 32 were excluded at a second data review (declined or previous smoking), prior to the first visit. Due to not matching the required lung function criteria at a second spirometry, an additional 334 (68%) were excluded. These exclusions were by reason of: FEV<sub>1</sub>/FVC ≥0.7 (49%), FEV<sub>1</sub> > 100% of predicted (26%) or z-score ≥ -1,64 (24%). Finally, 154 never-smokers with COPD were included: 56 (36%) women, (mean) age 60 years, FEV<sub>1</sub> 84% of predicted, FEV<sub>1</sub>/FVC: 0.6, z-score: -2.2, Oxygen saturation: 97% and BMI: 26.8 kg/m<sup>2</sup>.</p><p><strong>Conclusions: </strong>The challenges of a recruitment process of never-smokers with COPD were shown, including the importance of correct spirometry testing and strict inclusion criteria. Our findings highlight the importance of repeated spirometry assessments for improved accuracy in diagnosing COPD.</p>","PeriodicalId":11872,"journal":{"name":"European Clinical Respiratory Journal","volume":"11 1","pages":"2372903"},"PeriodicalIF":1.8000,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251440/pdf/","citationCount":"0","resultStr":"{\"title\":\"The challenges of recruiting never-smokers with chronic obstructive pulmonary disease from the large population-based Swedish CArdiopulmonary bioImage study (SCAPIS) cohort.\",\"authors\":\"Pernilla Sönnerfors, Petra Kristina Jacobson, Anders Andersson, Annelie Behndig, Leif Bjermer, Anders Blomberg, Heléne Blomqvist, Jonas Erjefält, Maria Friberg, Kristina Lamberg Lundström, Anna Lundborg, Andrei Malinovschi, Hans Lennart Persson, Ellen Tufvesson, Åsa Wheelock, Christer Janson, Carl Magnus Sköld\",\"doi\":\"10.1080/20018525.2024.2372903\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>A substantial proportion of individuals with COPD have never smoked, and it is implied to be more common than previously anticipated but poorly studied.</p><p><strong>Aim: </strong>To describe the process of recruitment of never-smokers with COPD from a population-based cohort (<i>n</i> = 30 154).</p><p><strong>Methods: </strong>We recruited never-smokers with COPD, aged 50-75 years, from six University Hospitals, based on: 1) post broncho-dilator forced expiratory volume in 1 second/forced vital capacity (FEV<sub>1</sub>/FVC) < 0.70 and 2) FEV<sub>1</sub> 50-100% of predicted value and 3) being never-smokers (self-reported). In total 862 SCAPIS participants were identified, of which 652 were reachable and agreed to a first screening by telephone. Altogether 128 (20%) were excluded due to previous smoking or declined participation. We also applied a lower limit of normal (LLN) of FEV<sub>1</sub>/FVC (z-score<-1.64) according to the Global Lung Initiative to ensure a stricter definition of airflow obstruction.</p><p><strong>Results: </strong>Data on respiratory symptoms, health status, and medical history were collected from 492 individuals, since 32 were excluded at a second data review (declined or previous smoking), prior to the first visit. Due to not matching the required lung function criteria at a second spirometry, an additional 334 (68%) were excluded. These exclusions were by reason of: FEV<sub>1</sub>/FVC ≥0.7 (49%), FEV<sub>1</sub> > 100% of predicted (26%) or z-score ≥ -1,64 (24%). Finally, 154 never-smokers with COPD were included: 56 (36%) women, (mean) age 60 years, FEV<sub>1</sub> 84% of predicted, FEV<sub>1</sub>/FVC: 0.6, z-score: -2.2, Oxygen saturation: 97% and BMI: 26.8 kg/m<sup>2</sup>.</p><p><strong>Conclusions: </strong>The challenges of a recruitment process of never-smokers with COPD were shown, including the importance of correct spirometry testing and strict inclusion criteria. Our findings highlight the importance of repeated spirometry assessments for improved accuracy in diagnosing COPD.</p>\",\"PeriodicalId\":11872,\"journal\":{\"name\":\"European Clinical Respiratory Journal\",\"volume\":\"11 1\",\"pages\":\"2372903\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251440/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Clinical Respiratory Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/20018525.2024.2372903\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q3\",\"JCRName\":\"RESPIRATORY SYSTEM\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Clinical Respiratory Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/20018525.2024.2372903","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"RESPIRATORY SYSTEM","Score":null,"Total":0}
The challenges of recruiting never-smokers with chronic obstructive pulmonary disease from the large population-based Swedish CArdiopulmonary bioImage study (SCAPIS) cohort.
Background: A substantial proportion of individuals with COPD have never smoked, and it is implied to be more common than previously anticipated but poorly studied.
Aim: To describe the process of recruitment of never-smokers with COPD from a population-based cohort (n = 30 154).
Methods: We recruited never-smokers with COPD, aged 50-75 years, from six University Hospitals, based on: 1) post broncho-dilator forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) < 0.70 and 2) FEV1 50-100% of predicted value and 3) being never-smokers (self-reported). In total 862 SCAPIS participants were identified, of which 652 were reachable and agreed to a first screening by telephone. Altogether 128 (20%) were excluded due to previous smoking or declined participation. We also applied a lower limit of normal (LLN) of FEV1/FVC (z-score<-1.64) according to the Global Lung Initiative to ensure a stricter definition of airflow obstruction.
Results: Data on respiratory symptoms, health status, and medical history were collected from 492 individuals, since 32 were excluded at a second data review (declined or previous smoking), prior to the first visit. Due to not matching the required lung function criteria at a second spirometry, an additional 334 (68%) were excluded. These exclusions were by reason of: FEV1/FVC ≥0.7 (49%), FEV1 > 100% of predicted (26%) or z-score ≥ -1,64 (24%). Finally, 154 never-smokers with COPD were included: 56 (36%) women, (mean) age 60 years, FEV1 84% of predicted, FEV1/FVC: 0.6, z-score: -2.2, Oxygen saturation: 97% and BMI: 26.8 kg/m2.
Conclusions: The challenges of a recruitment process of never-smokers with COPD were shown, including the importance of correct spirometry testing and strict inclusion criteria. Our findings highlight the importance of repeated spirometry assessments for improved accuracy in diagnosing COPD.
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