Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland

Abstract Background Surprisingly little is known about asthma control among asthmatics who smoke. The aim of this cross-sectional study was to investigate asthma symptom control according to the GINA guidelines among asthmatics with a clinically significant smoking history. Methods One hundred ninet...

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Main Authors: Toni Kiljander, Tuija Poussa, Timo Helin, Antero Jaakkola, Kari Venho, Lauri Lehtimäki
Format: Article
Language:English
Published: BMC 2020-04-01
Series:BMC Pulmonary Medicine
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12890-020-1127-9
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author Toni Kiljander
Tuija Poussa
Timo Helin
Antero Jaakkola
Kari Venho
Lauri Lehtimäki
author_facet Toni Kiljander
Tuija Poussa
Timo Helin
Antero Jaakkola
Kari Venho
Lauri Lehtimäki
author_sort Toni Kiljander
collection DOAJ
description Abstract Background Surprisingly little is known about asthma control among asthmatics who smoke. The aim of this cross-sectional study was to investigate asthma symptom control according to the GINA guidelines among asthmatics with a clinically significant smoking history. Methods One hundred ninety asthmatics from primary care in Finland were investigated. The patients were current or previous cigarette smokers with a history of 10 or more pack-years. They completed a questionnaire including questions on asthma symptoms and reliever use so that their level of asthma symptom control (well controlled, partly controlled, or uncontrolled) according to GINA could be determined. Results Sixty-six (34.7%) patients had their asthma well controlled, 81 (42.6%) had their asthma partly controlled, and 43 (22.6%) had uncontrolled asthma. Current smokers had uncontrolled asthma more often than ex-smokers, OR 2.54 (95% CI 1.25–5.14, p = 0.01). Patients with moderate to severe asthma exacerbation during the previous year had uncontrolled asthma more often than patients without an exacerbation, OR 2.17 (95% CI 1.06–4.47, p = 0.04), and patients with FEV1 <  80% of predicted had uncontrolled asthma more often than patients with FEV1 > 80% of predicted, OR 2.04 (95% CI 1.02–4.08, p = 0.04). Conclusions Asthmatic patients with a clinically significant smoking history often do not have well controlled asthma. Poor asthma symptom control was associated with current smoking status, history of exacerbations and impaired lung function. Therefore, every attempt should be made to help asthmatics who smoke to quit smoking.
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spelling doaj.art-d70969a21c3e4617a50443b2c980db0f2022-12-21T18:49:13ZengBMCBMC Pulmonary Medicine1471-24662020-04-012011510.1186/s12890-020-1127-9Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in FinlandToni Kiljander0Tuija Poussa1Timo Helin2Antero Jaakkola3Kari Venho4Lauri Lehtimäki5Department of Respiratory Medicine, Terveystalo HospitalStat ConsultingSkin and Allergy Hospital, Helsinki University Central HospitalBoehringer-Ingelheim FinlandDepartment of Respiratory Medicine, Terveystalo HospitalAllergy Centre, Tampere University HospitalAbstract Background Surprisingly little is known about asthma control among asthmatics who smoke. The aim of this cross-sectional study was to investigate asthma symptom control according to the GINA guidelines among asthmatics with a clinically significant smoking history. Methods One hundred ninety asthmatics from primary care in Finland were investigated. The patients were current or previous cigarette smokers with a history of 10 or more pack-years. They completed a questionnaire including questions on asthma symptoms and reliever use so that their level of asthma symptom control (well controlled, partly controlled, or uncontrolled) according to GINA could be determined. Results Sixty-six (34.7%) patients had their asthma well controlled, 81 (42.6%) had their asthma partly controlled, and 43 (22.6%) had uncontrolled asthma. Current smokers had uncontrolled asthma more often than ex-smokers, OR 2.54 (95% CI 1.25–5.14, p = 0.01). Patients with moderate to severe asthma exacerbation during the previous year had uncontrolled asthma more often than patients without an exacerbation, OR 2.17 (95% CI 1.06–4.47, p = 0.04), and patients with FEV1 <  80% of predicted had uncontrolled asthma more often than patients with FEV1 > 80% of predicted, OR 2.04 (95% CI 1.02–4.08, p = 0.04). Conclusions Asthmatic patients with a clinically significant smoking history often do not have well controlled asthma. Poor asthma symptom control was associated with current smoking status, history of exacerbations and impaired lung function. Therefore, every attempt should be made to help asthmatics who smoke to quit smoking.http://link.springer.com/article/10.1186/s12890-020-1127-9AsthmaSmokingSymptom control
spellingShingle Toni Kiljander
Tuija Poussa
Timo Helin
Antero Jaakkola
Kari Venho
Lauri Lehtimäki
Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
BMC Pulmonary Medicine
Asthma
Smoking
Symptom control
title Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
title_full Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
title_fullStr Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
title_full_unstemmed Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
title_short Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland
title_sort symptom control among asthmatics with a clinically significant smoking history a cross sectional study in finland
topic Asthma
Smoking
Symptom control
url http://link.springer.com/article/10.1186/s12890-020-1127-9
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