Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study

Abstract Background Idiopathic pulmonary fibrosis (IPF) is frequently accompanied by comorbidities, with the management of these comorbidities crucial for clinical outcomes. This study investigated the prevalence, incidence, changes over time, and clinical impact of comorbidities in IPF patients, ba...

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Main Authors: Jang Ho Lee, Hyung Jun Park, Seonok Kim, Ye-Jee Kim, Ho Cheol Kim
Format: Article
Language:English
Published: BMC 2023-02-01
Series:BMC Pulmonary Medicine
Subjects:
Online Access:https://doi.org/10.1186/s12890-023-02340-8
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author Jang Ho Lee
Hyung Jun Park
Seonok Kim
Ye-Jee Kim
Ho Cheol Kim
author_facet Jang Ho Lee
Hyung Jun Park
Seonok Kim
Ye-Jee Kim
Ho Cheol Kim
author_sort Jang Ho Lee
collection DOAJ
description Abstract Background Idiopathic pulmonary fibrosis (IPF) is frequently accompanied by comorbidities, with the management of these comorbidities crucial for clinical outcomes. This study investigated the prevalence, incidence, changes over time, and clinical impact of comorbidities in IPF patients, based on nationwide claims data in South Korea. Methods This retrospective cohort study utilised nationwide health claim data in South Korea between 2011 and 2019. Patients with IPF were defined as those with ICD-10 code J84.1 and Rare Intractable Disease code V236 who made at least one claim per year. Patients were classified by sex, age, pirfenidone use and burden of comorbidities, and differences among groups were determined. Results The yearly prevalence rate of IPF increased from 7.50 to 23.20 per 100,000 people, and the yearly incidence rate increased from 3.56 to 7.91 per 100,000 person-years over time. The most common respiratory comorbidity was chronic obstructive pulmonary disease (37.34%), followed by lung cancer (3.34%), whereas the most common non-respiratory comorbidities were gastro-oesophageal reflux disease (70.83%), dyslipidaemia (62.93%) and hypertension (59.04%). The proportion of some comorbidities differed by sex, age and use of pirfenidone. The proportion of lung cancer was higher in patients treated with pirfenidone, whereas the proportion of anxiety and depression were lower in patients not treated with pirfenidone. Charlson comorbidity index ≥ 4 was associated with increases in hospitalisations and total medical costs. Conclusions The yearly prevalence and incidence of IPF and comorbidities in Korea increased over time. These comorbidities affected the use of pirfenidone and medical resources.
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spelling doaj.art-0ca3b124e6794c25b5098f66ea23aab92023-02-05T12:03:42ZengBMCBMC Pulmonary Medicine1471-24662023-02-0123111010.1186/s12890-023-02340-8Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort studyJang Ho Lee0Hyung Jun Park1Seonok Kim2Ye-Jee Kim3Ho Cheol Kim4Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of MedicineDivision of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of MedicineDepartment of Clinical Epidemiology and Biostatistics, Asan Medical Centre, University of Ulsan College of MedicineDepartment of Clinical Epidemiology and Biostatistics, Asan Medical Centre, University of Ulsan College of MedicineDivision of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of MedicineAbstract Background Idiopathic pulmonary fibrosis (IPF) is frequently accompanied by comorbidities, with the management of these comorbidities crucial for clinical outcomes. This study investigated the prevalence, incidence, changes over time, and clinical impact of comorbidities in IPF patients, based on nationwide claims data in South Korea. Methods This retrospective cohort study utilised nationwide health claim data in South Korea between 2011 and 2019. Patients with IPF were defined as those with ICD-10 code J84.1 and Rare Intractable Disease code V236 who made at least one claim per year. Patients were classified by sex, age, pirfenidone use and burden of comorbidities, and differences among groups were determined. Results The yearly prevalence rate of IPF increased from 7.50 to 23.20 per 100,000 people, and the yearly incidence rate increased from 3.56 to 7.91 per 100,000 person-years over time. The most common respiratory comorbidity was chronic obstructive pulmonary disease (37.34%), followed by lung cancer (3.34%), whereas the most common non-respiratory comorbidities were gastro-oesophageal reflux disease (70.83%), dyslipidaemia (62.93%) and hypertension (59.04%). The proportion of some comorbidities differed by sex, age and use of pirfenidone. The proportion of lung cancer was higher in patients treated with pirfenidone, whereas the proportion of anxiety and depression were lower in patients not treated with pirfenidone. Charlson comorbidity index ≥ 4 was associated with increases in hospitalisations and total medical costs. Conclusions The yearly prevalence and incidence of IPF and comorbidities in Korea increased over time. These comorbidities affected the use of pirfenidone and medical resources.https://doi.org/10.1186/s12890-023-02340-8ComorbidityIdiopathic pulmonary fibrosisIncidencePirfenidonePrevalence
spellingShingle Jang Ho Lee
Hyung Jun Park
Seonok Kim
Ye-Jee Kim
Ho Cheol Kim
Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
BMC Pulmonary Medicine
Comorbidity
Idiopathic pulmonary fibrosis
Incidence
Pirfenidone
Prevalence
title Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
title_full Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
title_fullStr Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
title_full_unstemmed Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
title_short Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study
title_sort epidemiology and comorbidities in idiopathic pulmonary fibrosis a nationwide cohort study
topic Comorbidity
Idiopathic pulmonary fibrosis
Incidence
Pirfenidone
Prevalence
url https://doi.org/10.1186/s12890-023-02340-8
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AT yejeekim epidemiologyandcomorbiditiesinidiopathicpulmonaryfibrosisanationwidecohortstudy
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