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Yoo KH, Kim SH, Kim SH, Moon JY, Park HW, Chang YS, Beekman MJ. Short-acting β2-agonist prescriptions in patients with asthma: findings from the South Korean cohort of SABINA III. Korean J Intern Med 2024; 39:123-136. [PMID: 38057957 PMCID: PMC10790050 DOI: 10.3904/kjim.2023.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND/AIMS Despite short-acting β2-agonist (SABA) overuse being associated with poor asthma outcomes, data on SABA use in South Korea is scarce. Herein, we describe prescription patterns of SABA and other asthma medications in patients from the South Korean cohort of the SABA use IN Asthma (SABINA) III study. METHODS This study included patients with asthma aged ≥ 12 years, who had ≥ 3 consultations with the same healthcare provider, and medical records containing data for ≥ 12 months prior to the study visit. Patients were classified by investigator-defined asthma severity (per 2017 Global Initiative for Asthma recommendations) and practice type (primary or specialist care). Data on disease characteristics, asthma treatments, and clinical outcomes in the 12 months before the study visit were collected using electronic case report forms. RESULTS Data from 476 patients (mean age, 55.4 years; female, 63.0%) were analyzed. Most patients were treated by specialists (83.7%) and had moderate-to-severe asthma (91.0%). Overall, 7.6% of patients were prescribed ≥ 3 SABA canisters (defined as over-prescription). In patients prescribed SABA in addition to maintenance therapy, 47.4% were over-prescribed SABA. Most patients (95.4%) were prescribed a fixed-dose combination of an inhaled corticosteroid and a long-acting β2-agonist as maintenance therapy. Although asthma was well-controlled/partly-controlled in 91.6% of patients, 29.6% experienced ≥ 1 severe asthma exacerbation. CONCLUSION SABA over-prescription was reported in nearly 50% of patients prescribed SABA in addition to maintenance therapy, underscoring the need to align clinical practices with the latest evidence-based recommendations and educate physicians and patients on appropriate SABA use.
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Affiliation(s)
- Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul,
Korea
| | - Sang-Ha Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju,
Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul,
Korea
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul,
Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul,
Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul,
Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul,
Korea
| | - Yoon-Seok Chang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul,
Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul,
Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
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Dhar R, Rhee CK, Perng DW, Fukunaga K, Ip MSM, Juthong S, Koh MS, Li J, Sharma S, Wiyono WH. The burden of systemic corticosteroid use in asthma management in Asia. Respirology 2023. [PMID: 37301540 DOI: 10.1111/resp.14533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 05/03/2023] [Indexed: 06/12/2023]
Abstract
For most patients, asthma can be effectively managed using inhaled medications. However, patients who have severe and/or uncontrolled asthma, or who experience exacerbations, may require systemic corticosteroids (SCSs) to maintain asthma control. Although SCS are highly effective in this regard, even modest exposure to these medications can increase the risk for long-term, adverse health outcomes, such as type 2 diabetes, renal impairment, cardiovascular disease and overall mortality. Clinical and real-world data from studies investigating asthma severity, control and treatment practices around the globe have suggested that SCS are overused in asthma management, adding to the already substantial healthcare burden experienced by patients. Throughout Asia, although data on asthma severity, control and SCS usage are limited and vary widely among countries, available data strongly suggest a pattern of overuse consistent with the broader global trend. Coordinated changes at the patient, provider, institutional and policy levels, such as increasing disease awareness, promoting better adherence to treatment guidelines and increasing availability of safe and effective alternatives to SCS, are likely necessary to reduce the SCS burden for patients with asthma in Asia.
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Affiliation(s)
- Raja Dhar
- Department of Pulmonology, CK Birla Group of Hospitals, Kolkata, West Bengal, India
| | - Chin Kook Rhee
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of South Korea, Seoul, South Korea
| | - Diahn-Warng Perng
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Koichi Fukunaga
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mary Sau-Man Ip
- Department of Medicine, University of Hong Kong, Hong Kong, China
| | - Siwasak Juthong
- Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Mariko Siyue Koh
- Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore, Singapore
| | - Jing Li
- Allergy and Clinical Immunology Department, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Shubham Sharma
- Heart and Lung Transplant Unit, Yashoda Hospitals, Secunderabad, India
| | - Wiwien Heru Wiyono
- Department of Pulmonology and Respiratory Medicine Faculty of Medicine, Universitas Indonesia, Persahabatan Hospital, Jakarta, Indonesia
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Joo H, Lee D, Lee SH, Kim YK, Rhee CK. Increasing the accuracy of the asthma diagnosis using an operational definition for asthma and a machine learning method. BMC Pulm Med 2023; 23:196. [PMID: 37280559 DOI: 10.1186/s12890-023-02479-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 05/15/2023] [Indexed: 06/08/2023] Open
Abstract
INTRODUCTION Analysis of the National Health Insurance data has been actively carried out for the purpose of academic research and establishing scientific evidences for health care service policy in asthma. However, there has been a limitation for the accuracy of the data extracted through conventional operational definition. In this study, we verified the accuracy of conventional operational definition of asthma, by applying it to a real hospital setting. And by using a machine learning technique, we established an appropriate operational definition that predicts asthma more accurately. METHODS We extracted asthma patients using the conventional operational definition of asthma at Seoul St. Mary's hospital and St. Paul's hospital at the Catholic University of Korea between January 2017 and January 2018. Among these extracted patients of asthma, 10% of patients were randomly sampled. We verified the accuracy of the conventional operational definition for asthma by matching actual diagnosis through medical chart review. And then we operated machine learning approaches to predict asthma more accurately. RESULTS A total of 4,235 patients with asthma were identified using a conventional asthma definition during the study period. Of these, 353 patients were collected. The patients of asthma were 56% of study population, 44% of patients were not asthma. The use of machine learning techniques improved the overall accuracy. The XGBoost prediction model for asthma diagnosis showed an accuracy of 87.1%, an AUC of 93.0%, sensitivity of 82.5%, and specificity of 97.9%. Major explanatory variable were ICS/LABA,LAMA and LTRA for proper diagnosis of asthma. CONCLUSIONS The conventional operational definition of asthma has limitation to extract true asthma patients in real world. Therefore, it is necessary to establish an accurate standardized operational definition of asthma. In this study, machine learning approach could be a good option for building a relevant operational definition in research using claims data.
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Affiliation(s)
- Hyonsoo Joo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Daeun Lee
- Departement of Applied Statistics, Yonsei University, Seoul, Republic of Korea
| | - Sang Haak Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, Eunpyeong St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Kyoon Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222 Banpodaero, Seochogu, Seoul, 06591, Republic of Korea.
| | - Chin Kook Rhee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, 222 Banpodaero, Seochogu, Seoul, 06591, Republic of Korea.
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Lee WS, Hwang JK, Ryu J, Choi YJ, Oh JW, Kim CR, Han MY, Oh IH, Lee KS. The relationship between childhood asthma and socioeconomic status: a Korean nationwide population-based study. Front Public Health 2023; 11:1133312. [PMID: 37181696 PMCID: PMC10167280 DOI: 10.3389/fpubh.2023.1133312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
Purpose This study aimed to investigate associations of socioeconomic status (SES) with asthma exacerbation and asthma-related hospital utilization factors among children with asthma in the Republic of Korea. Methods This study retrospectively analyzed population-level data from the Korean National Health Insurance Service, collected from 2013 through 2019. SES was classified into five categories according to the national health insurance premiums quantiles (0 [lowest] to 4 [highest]). The hazard ratios (HRs) for asthma exacerbation, emergency department (ED) visits, hospital admission, and intensive care unit (ICU) admission were analyzed with respect to SES. Results Among the five SES groups, SES group 0 (medical aid), had the highest tallies and proportions of children who experienced asthma exacerbations (n = 1,682, 4.8%), ED visits (n = 932, 2.6%), hospital admission (n = 2,734, 7.7%) and ICU admission (n = 14, 0.04%). Compared with SES group 4, SES group 0 had adjusted HRs of 3.73 (p = 0.0113) and 1.04 (p < 0.0001) for ventilator support/tracheal intubation and administration of systemic corticosteroids, respectively. Relative to group 4, the adjusted HRs for ED visits, hospital admission, and ICU admission in group 0 were 1.88 (p < 0.0001), 2.20 (p < 0.0001), and 7.12 (p < 0.0001), respectively. In the survival analysis, group 0 had a significantly higher risk of ED presentation, hospital admission, and ICU admission than the other groups (log-rank p < 0.001). Conclusion Compared with children of higher SES, those in the lowest SES group had increased risk of asthma exacerbation, hospital admission, and receiving treatment for severe asthma symptoms.
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Affiliation(s)
- Won Seok Lee
- Department of Pediatrics, CHA Ilsan Medical Center, CHA University College of Medicine, Goyang, Republic of Korea
| | - Jae Kyoon Hwang
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Republic of Korea
| | - Young-Jin Choi
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Chang-Ryul Kim
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Man Yong Han
- Department of Pediatrics, CHA Bundang Medical Center, CHA University College of Medicine, Seongnam, Republic of Korea
| | - In Hwan Oh
- Department of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kyung Suk Lee
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
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Seo MS, Hillen J, Kang DY, Pratt N, Shin JY. Prescription Patterns of Asthma Preventers Among Children and Adolescents Between Australia and South Korea. Front Pharmacol 2022; 13:834116. [PMID: 35668949 PMCID: PMC9163376 DOI: 10.3389/fphar.2022.834116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose: Inhaled Corticosteroids (ICSs) and oral Leukotriene Receptor Antagonists (LTRAs) are commonly prescribed asthma preventers, however, concerns have been raised as to whether montelukast (LTRA) is associated with an increase in occurrences of neuropsychiatric side effects in children. Our study was conducted to observe prescribing patterns of asthma preventers among paediatric patients specifically focusing on ICSs and LTRAs between Australia and South Korea to see intercountry differences in the use of these medicines. Materials and Methods: The Health Insurance Review and Assessment Paediatric Patients Sample dataset for South Korea and data provided by Services Australia were used in the study. Paediatric patients aged between 3 and 19 with more than one dispensing of an asthma preventer and at least one reliever between 1 Jan 2018 and 31 December 2018 were selected. Prevalence per 1,00,000 persons and standardised prevalence were estimated. Results: A total of 3,58,470 patients (2,04,270 from South Korea and 1,54,200 from Australia) were included in the study. A higher prevalence of ICS-based inhalers was seen in Australia with 80.1% compared to 13.5% in South Korea. In addition, Australia showed a stronger tendency of prescribing high dose ICS-based inhalers compared to South Korea with 22.9% vs. 4.9%. In contrast, use of LTRAs was more prevalent in South Korea with 57.6% while in Australia, montelukast was the only LTRA dispensed at a proportion of 18.9%. Moreover, 29.9% of xanthines which are orally available preventers, were prescribed more frequently in South Korea compared to Australia (0.1%). Conclusion: Australia showed a tendency of prescribing ICS-based preventers whereas South Korea exhibited a preference towards the oral LTRAs. Given the potential risk of neuropsychiatric side effects among paediatric patients with montelukast, reasons for the high use of montelukast in South Korea should be investigated further.
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Affiliation(s)
- Min Sook Seo
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Jodie Hillen
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Dong Yoon Kang
- Department of Preventive Medicine, Ulsan University Hospital, Ulsan, South Korea
| | - Nicole Pratt
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
- *Correspondence: Nicole Pratt, ; Ju-Young Shin,
| | - Ju-Young Shin
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
- Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
- Department of Biohealth Regulatory Science, Sungkyunkwan University, Seoul, South Korea
- *Correspondence: Nicole Pratt, ; Ju-Young Shin,
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Yeo Y, Lee H, Ryu J, Chung SJ, Park TS, Park DW, Kim SH, Kim TH, Sohn JW, Yoon HJ, Min KH, Moon JY. Additive effects of coexisting respiratory comorbidities on overall or respiratory mortality in patients with asthma: a national cohort study. Sci Rep 2022; 12:8105. [PMID: 35577832 PMCID: PMC9110422 DOI: 10.1038/s41598-022-12103-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 04/21/2022] [Indexed: 12/17/2022] Open
Abstract
Asthmatic patients are generally considered to have an increased risk of mortality compared with subjects without asthma. However, this issue has been less evaluated using nationally representative data. Moreover, it is unclear whether respiratory comorbidities other than chronic obstructive pulmonary disease (COPD) are associated with increased mortality in asthmatic patients compared with subjects without. Using a nationally representative sample database, we performed a retrospective cohort study of patients with asthma and age-sex-matched control cohort. We estimated the hazard ratio (HR) and stratified the asthma cohort based on respiratory comorbidities. During a median 8.9-year follow-up, the overall mortality rate was higher in the asthma cohort than in the control cohort (p < 0.001). The hazard ratio (HR) for overall mortality in the asthma cohort compared with the control cohort was 1.13. The effects of asthma on overall mortality were more evident in males, patients under medical aid, and subjects with COPD. Respiratory comorbidities were significantly associated with increased risk of overall mortality in asthmatic patients compared with controls (adjusted HRs; 1.48 for COPD, 1.40 for bronchiectasis, 4.08 for lung cancer, and 1.59 for pneumonia). While asthma and lung cancer showed an additive effect only on overall mortality, asthma and other respiratory comorbidities (COPD, pneumonia, and bronchiectasis) had additive effects only on respiratory mortality. Patients with asthma had a higher overall mortality rate compared with subjects without asthma. Respiratory comorbidities showed an additive effect on overall or respiratory mortality in patients with asthma.
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Affiliation(s)
- Yoomi Yeo
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, South Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Tae Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Kyung Hoon Min
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Korea University Medical School, 148, Gurodongro, Guro-gu, 08308, Seoul, South Korea.
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea.
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153, Gyeongchun-ro, Guri-si, Gyeonggi-do, 11923, South Korea.
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7
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Lee H, Ryu J, Chung SJ, Yeo Y, Park TS, Park DW, Moon JY, Kim TH, Sohn JW, Yoon HJ, Kim SH. Short-Acting Beta2-Agonist Use in Asthma in Korea: A 10-Year Population-Based Study. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:945-953. [PMID: 34734512 PMCID: PMC8569021 DOI: 10.4168/aair.2021.13.6.945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/01/2021] [Accepted: 08/17/2021] [Indexed: 12/25/2022]
Abstract
Short-acting β2-agonist (SABA) use is known to be lower in Korean patients with asthma than in those from other countries, while the rate of asthma exacerbations in Korea is higher than in other countries. Thus, an epidemiologic study on SABA use and the relationship between SABA overuse and treatment outcomes in asthma is needed in Korea. We performed a cross-sectional study using the National Health Insurance Service-National Sample Cohort 2002–2012 database. We evaluated the trend of annual SABA use and overuse (prescription of 3 or more SABA canisters/year) and the impact of SABA overuse on mortality. During the study period, the proportion of asthmatic patients who used SABA was approximately 8%–11%, with no significant change in trend. The mean annual SABA use in asthmatic patients was 0.15–0.22 canisters/patient/year and 1.93–2.05 canisters/patient/year in those who used SABA in 12 months. SABA overuse was observed in about 2%–4% of asthmatic patients during the study period. SABA overuse generally tended to increase as the age of patients increased, with triple peaks in the late 20s (3.3%), late 40s (3.1%), and late 70s (3.6%). SABA overuse was associated with mortality (adjusted odds ratio, 1.72; 95% confidence interval, 1.61–1.84). The rate of SABA use was very low in Korean asthmatic patients between 2002–2012. SABA overuse was found in 2%–4% of patients in Korea. SABA overuse was associated with an increased risk of mortality.
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Affiliation(s)
- Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Yoomi Yeo
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tae-Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
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An TJ, Kim Y, Park YB, Kim K, Cho DY, Yoo KH, Rhee CK. Inhaled corticosteroid is not associated with a poor prognosis in COVID-19. Respirology 2021; 26:812-815. [PMID: 34173692 PMCID: PMC8447022 DOI: 10.1111/resp.14108] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 04/07/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Tai Joon An
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Youlim Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea
| | - Yong Bum Park
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Republic of Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Do Yeon Cho
- Big Data Research Division, Health Insurance Review and Assessment Service, Wonju, Republic of Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University Hospital, School of Medicine, Konkuk University, Seoul, Republic of Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Ishii T, Shiota S, Yamamoto K, Abe K, Miyazaki E. Inhaled Corticosteroid-Containing Regimens Reduce Hospitalizations and Healthcare Costs among Elderly Asthmatics: Real-World Validation Using the National Health Insurance Claims Database. TOHOKU J EXP MED 2021; 251:135-145. [PMID: 32595201 DOI: 10.1620/tjem.251.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The high rates of mortality and hospitalization among elderly asthmatics, as well as their increasing healthcare costs have become an important public health issue. It would be worthwhile to assess whether inhaled corticosteroid (ICS) can resolve these problems. To explore ICS prescription rates for elderly asthmatics and the factors influencing them and to investigate their association with hospitalization and healthcare costs, we analyzed data from the National Health Insurance Claims Database for the same time frame (December 1 to February 28) across three different periods (2011-2012; 2014-2015; and 2017-2018), from which we identified 6,619, 5,619, and 6,880 elderly individuals, respectively. The prescription rates of ICS increased (52.8%, 65.5% and 68.8%, in the first, second and third survey period, respectively) and inversely the hospital admission rates declined (3.7%, 3.2% and 2.5%, in the first, second and third survey period, respectively). The total healthcare costs per month were significantly lower for patients who received ICS-containing regimens than for those who did not. A multivariate analysis revealed that increasing age, rural residence, receiving a prescription from a clinic, hospital admission, and prescription of asthma medications other than ICS were associated with non-prescription of ICS, whereas cross-boundary treatment increased the ICS-prescription rate. Our study suggests that increases in the prescription rate of ICS are associated with reduced hospital admission rates and lower medical costs in the real-world. ICS prescription rates in rural areas and at clinics, which remain low, need to be increased.
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Affiliation(s)
- Toshihiro Ishii
- Department of General Medicine, Oita University Faculty of Medicine.,Center for Community Medicine, Oita University Faculty of Medicine
| | - Seiji Shiota
- Department of General Medicine, Oita University Faculty of Medicine.,Center for Community Medicine, Oita University Faculty of Medicine
| | - Kyoko Yamamoto
- Department of General Medicine, Oita University Faculty of Medicine.,Medical Education Center, Oita University Faculty of Medicine
| | - Koh Abe
- Department of General Medicine, Oita University Faculty of Medicine.,Center for Community Medicine, Oita University Faculty of Medicine
| | - Eishi Miyazaki
- Department of General Medicine, Oita University Faculty of Medicine.,Center for Community Medicine, Oita University Faculty of Medicine
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10
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Kim KY, Yoo KH, Choi HS, Kim BY, Ahn SI, Jo YU, Rhee CK. Nationwide quality assessment of treatment for chronic obstructive pulmonary disease. J Thorac Dis 2020; 12:7174-7181. [PMID: 33447406 PMCID: PMC7797857 DOI: 10.21037/jtd-20-905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Chronic obstructive pulmonary disease (COPD) requires careful ambulatory care. If treatment is effective, exacerbation and hospitalization can be preventable. Appropriate management is important; the disease prevalence is high, as is the demand on healthcare resources. Here, we have reported the results of nationwide quality assessment performed with the aims of improving patient management, reducing progression to severe status, and minimizing medical care expenses. Methods The Health Insurance Review and Assessment Service (HIRA) engaged in quality assessment three times from May 2014 to April 2017. Medical care institutions were evaluated in terms of the pulmonary function test (PFT), patient revisit, and inhaled bronchodilator prescription rates. Results The numbers of patients assessed were 141,782, 142,790, and 143,339 in years 1, 2, and 3, respectively; the numbers of medical care institutions assessed were 6,691, 6,722, and 6,470, respectively. The PFT implementation rates were 58.7%, 62.5%, and 67.9% for years 1, 2, and 3, respectively; these rates were highest for tertiary hospitals, followed by general and local hospitals, as well as primary healthcare clinics. The repeat visit rates were 85.5%, 92.1%, and 85.0% for years 1, 2, and 3, respectively; these rates were highest for general hospitals, followed by local and tertiary hospitals, and primary healthcare clinics. The inhaled bronchodilator prescription rates were 67.9%, 71.2%, and 76.9% for years 1, 2, and 3, respectively; these rates increased with increasing hospital grade. Conclusions The PFT and inhaled bronchodilator prescription rates improved over the 3-year nationwide quality assessment period.
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Affiliation(s)
- Kyu Yean Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Gyeonggi-do, Uijeongbu, South Korea
| | - Kwang Ha Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, South Korea
| | - Hye Sook Choi
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Kyunghee University Hospital, Seoul, South Korea
| | - Bo Yeon Kim
- Health Insurance Review & Assessment Service, Wonju, South Korea
| | - Sang In Ahn
- Health Insurance Review & Assessment Service, Wonju, South Korea
| | - Yon U Jo
- Health Insurance Review & Assessment Service, Wonju, South Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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11
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Dhar R, Ip M, Kulkarni T, Kim SH, Perng DW, Yao X, Iwanaga T, Siyue Koh M. Challenges faced in managing adult asthma: A perspective from Asian countries. Respirology 2020; 25:1235-1242. [PMID: 32885896 DOI: 10.1111/resp.13935] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 01/30/2023]
Abstract
Asthma imposes a significant burden on the health system and patients' quality of life. Within Asia, there is large variability in several cultural, social and economic factors ultimately influencing the management of asthma. Differences in risk factors and asthma management practices across Asia make asthma a truly 'mixed-bag' phenomenon. With the advent of biological agents and the consequent emphasis on asthma phenotyping and endotyping, it is more important than ever to understand the diverse nature of asthma as a disease. This is a collaborative review within Asia to highlight the differences in management of adult asthma, and the local modifications that are made to international guidelines. This review paves the way for a future Asian collaborative network in asthma epidemiological research.
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Affiliation(s)
- Raja Dhar
- Center of Excellence in Lung Care, Fortis Hospital, Kolkata, India
| | - Mary Ip
- Respiratory and Critical Care Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Tarang Kulkarni
- Center of Excellence in Lung Care, Fortis Hospital, Kolkata, India
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Diahn-Warng Perng
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Xin Yao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing, Medical University, Nanjing, China
| | - Takashi Iwanaga
- Department of Respiratory Medicine and Allergology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Mariko Siyue Koh
- Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
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12
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Lee H, Ryu J, Chung SJ, Park DW, Sohn JW, Yoon HJ, Kim SH. Coexisting COPD Increases Mortality in Patients With Corticosteroid-Dependent Asthma: A Nationwide Population-Based Study. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:821-831. [PMID: 32638562 PMCID: PMC7346996 DOI: 10.4168/aair.2020.12.5.821] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE Chronic corticosteroid (CS) use is a risk factor for long-term mortality in asthmatic patients, and the presence of coexisting chronic obstructive pulmonary disease (COPD) is associated with a severe presentation and poor prognosis. However, the impact of coexisting COPD on long-term mortality in patients with CS-dependent asthma has not been well elucidated. This study aimed to determine the impact of coexisting COPD on long-term mortality in patients with CS-dependent asthma. METHODS A retrospective cohort of patients with CS-dependent asthma aged 40 years or older was established using records from the Korean National Health Insurance Service database for 2005 to 2015. We classified the subjects into 2 groups according to the presence of COPD and evaluated the hazard ratio (HR) for all-cause mortality in patients with COPD relative to those without COPD. RESULTS Of 8,021 patients with CS-dependent asthma, 3,121 (38.9%) had COPD. All-cause mortality was significantly greater in patients with CS-dependent asthma and COPD than in those without COPD (9,955/100,000 person-years vs. 5,585/100,100 person-years, P < 0.001). The adjusted HRs were 1.29 (95% confidence interval [CI], 1.21-1.38), and the associations were especially significant for chronic lower respiratory diseases (subdistribution HR, 2.30; 95% CI, 2.06-2.57) and lung cancer (subdistribution HR, 1.34; 95% CI, 1.02-1.78). CONCLUSIONS In this population-based retrospective cohort study, the presence of physician-recognized COPD was associated with greater all-cause mortality and greater risk of mortality due to chronic lower respiratory diseases and lung cancer in patients with CS-dependent asthma. Early recognition and appropriate management of COPD can improve treatment outcomes in patients with CS-dependent asthma.
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Affiliation(s)
- Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
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13
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Jo EJ, Kim MY, Kim SH, Kwon YE, Park HK, Cho SH, Chang YS. Implementation of Asthma Management Guidelines and Possible Barriers in Korea. J Korean Med Sci 2020; 35:e72. [PMID: 32233156 PMCID: PMC7105508 DOI: 10.3346/jkms.2020.35.e72] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/22/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND There could be a gap between asthma management guidelines and current practice. We evaluated the awareness of and compliance with asthma management guidelines, and the internal and external barriers to compliance, for the first time in Korea. METHODS From March to September of 2012, 364 physicians treating asthma patients at primary, secondary, and tertiary teaching hospitals were enrolled. They completed a questionnaire on the awareness of and compliance with asthma management guidelines, and the barriers and alternatives to their implementation. RESULTS Of the 364 physicians, 79.1% were men and 56.9% were primary care physicians. The mean age was 40.5 ± 11.2 years. Most of them were aware of asthma management guidelines (89.3%). However, only a portion (11.0%) of them complied with the guidelines for asthma. Pulmonary function tests for diagnosis of asthma were performed by 20.1% of all physicians and 9.2% of primary care physicians, and by 9.9% of all physicians and 5.8% of primary care physicians for monitoring. Physicians stated that 'asthma monitoring' was the most difficult part of the guidelines, followed by 'environmental control and risk factors.' Only 39.6% (31.9% of the primary care physicians) prescribed an inhaled corticosteroid (ICS) as the first-line treatment for persistent asthma. The internal barriers were physician's preference for oral medications, difficulty in use even with inhaler training, and concern over ICS side effects. The external barriers were possible rejection of medical reimbursement by health insurance, refusal by the patient, cost, and a poor environment for teaching the patient how to use the inhaler. Alternatives proposed by physicians to implement asthma management guidelines were to improve medical reimbursement policies and the level of awareness of such guidelines. CONCLUSION Compliance with the asthma management guidelines, including ICS prescription, is low despite the awareness of the guidelines. It is necessary to develop a strategy to overcome the internal and external barriers.
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Affiliation(s)
- Eun Jung Jo
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Mi Yeong Kim
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Sae Hoon Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yong Eun Kwon
- Department of Internal Medicine, Chosun University Medical School, Gwangju, Korea
| | - Hye Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Sang Heon Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - Yoon Seok Chang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
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14
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Choi H, Lee H, Ryu J, Chung SJ, Park DW, Sohn JW, Yoon HJ, Kim SH. Bronchiectasis and increased mortality in patients with corticosteroid-dependent severe asthma: a nationwide population study. Ther Adv Respir Dis 2020; 14:1753466620963030. [PMID: 33059535 PMCID: PMC7580190 DOI: 10.1177/1753466620963030] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Long-term corticosteroid (CS) use is associated with increased mortality in patients with asthma, and comorbid bronchiectasis is also associated with frequent asthma exacerbation and increased healthcare use. However, there is limited information on whether bronchiectasis further increases mortality in patients with CS-dependent asthma. This study examined the impact of bronchiectasis on mortality in patients with CS-dependent asthma. METHODS A retrospective cohort of patients with CS-dependent asthma ⩾18 years old was established using records from the Korean National Health Insurance Service database from 2005 to 2015. Patients with CS-dependent asthma with and without bronchiectasis were matched by age, sex, type of insurance, and Charlson comorbidity index. We evaluated the hazard ratio (HR) for all-cause mortality in patients with bronchiectasis compared with those without bronchiectasis. RESULTS The study cohort included 754 patients with CS-dependent asthma with bronchiectasis and 3016 patients with CS-dependent asthma without bronchiectasis. Patients with CS-dependent asthma with bronchiectasis had a higher all-cause mortality than those without bronchiectasis (8429/100,000 versus 6962/100,000 person-years, p < 0.001). The adjusted HR for mortality in patients with CS-dependent asthma with bronchiectasis relative to those without bronchiectasis was 1.33 (95% confidence interval, 1.18-1.50), and the association was primarily significant for respiratory diseases (subdistribution HR = 1.65, 95% confidence interval, 1.42-1.92). CONCLUSIONS Bronchiectasis further increases all-cause mortality in patients with CS-dependent asthma, a trend that was especially associated with respiratory diseases including chronic obstructive pulmonary disease. Strategies to improve treatment outcomes in patients with CS-dependent asthma with bronchiectasis are urgently needed to improve long-term survival.The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
- Hayoung Choi
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
- Lung Research Institute, Hallym University College of Medicine, Chuncheon, Korea
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
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15
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To T, Gray N, Ryckman K, Zhu J, Fong I, Gershon A. Sex differences in health services and medication use among older adults with asthma. ERJ Open Res 2019; 5:00242-2019. [PMID: 31803772 PMCID: PMC6885592 DOI: 10.1183/23120541.00242-2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023] Open
Abstract
Sex differences are well documented in chronic disease populations with cardiovascular disease and diabetes. Although recent research has suggested that asthma is more severe in older women compared to men, the extent of this difference remains poorly understood. The objective of this study was to compare rates of asthma-specific health services use (HSU) and medication use, between older women and men with asthma. This population-based cohort study included 209 054 individuals aged ≥66 years with asthma from health administrative data in Ontario, Canada. The primary exposure was sex. Outcomes included asthma-specific HSU (spirometry, emergency department (ED), hospitalisation, physician office and specialist visits) and medication use (asthma controller and reliever prescriptions). Negative binomial regression models adjusted for age, socioeconomic status and comorbidities were used to ascertain outcomes by sex from 2010 to 2016. Compared to men, women had lower rates of spirometry (adjusted relative rate (ARR) 0.87, 95% CI 0.85–0.89) and specialist visits for asthma (ARR 0.93, 95% CI 0.90–0.96), but higher rates of asthma-specific ED (ARR 1.43, 95% CI 1.33–1.53) and physician office visits (ARR 1.03, 95% CI 1.01–1.05). Women also had lower asthma controller (ARR 0.98, 95% CI 0.97–0.99) but higher asthma reliever (ARR 1.03, 95% CI 1.02–1.05) prescription fill rates, compared to men. These findings may indicate poorer disease control, greater asthma severity and poorer access to specialist asthma care in women. Older women with asthma have lower rates of spirometry, asthma specialist visits and asthma controller fill rates, and higher rates of ED visits for asthma, physician office visits for asthma and asthma reliever fill rates, compared to menhttp://bit.ly/33PfMD6
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Affiliation(s)
- Teresa To
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,ICES, Toronto, ON, Canada
| | - Natasha Gray
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
| | - Kandace Ryckman
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jingqin Zhu
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada.,ICES, Toronto, ON, Canada
| | - Ivy Fong
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
| | - Andrea Gershon
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,ICES, Toronto, ON, Canada.,Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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16
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Lee H, Ryu J, Nam E, Chung SJ, Yeo Y, Park DW, Park TS, Moon JY, Kim TH, Sohn JW, Yoon HJ, Kim SH. Increased mortality in patients with corticosteroid-dependent asthma: a nationwide population-based study. Eur Respir J 2019; 54:13993003.00804-2019. [PMID: 31515404 DOI: 10.1183/13993003.00804-2019] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 08/28/2019] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Chronic systemic corticosteroid (CS) therapy is associated with an increased risk of mortality in patients with many chronic diseases. However, it has not been elucidated whether chronic systemic CS therapy is associated with increased mortality in patients with asthma. The aim of this study was to determine the effects of chronic systemic CS therapy on long-term mortality in adult patients with asthma. METHODS A population-based matched cohort study of males and females aged ≥18 years with asthma was performed using the Korean National Health Insurance Service database from 2005 to 2015. Hazard ratio (HR) with 95% confidence interval for all-cause mortality among patients in the CS-dependent cohort (CS use ≥6 months during baseline period) relative to those in the CS-independent cohort (CS use <6 months during baseline period) was evaluated. RESULTS The baseline cohort included 466 941 patients with asthma, of whom 8334 were CS-dependent and 458 607 were CS-independent. After 1:1 matching, 8334 subjects with CS-independent asthma were identified. The HR of mortality associated with CS-dependent asthma relative to CS-independent asthma was 2.17 (95% CI 2.04-2.31). In patients receiving low-dose CS, the HR was 1.84 (95% CI 1.69-2.00); in patients receiving high-dose CS, the HR was 2.56 (95% CI 2.35-2.80). CONCLUSIONS In this real-world, clinical practice, observational study, chronic use of systemic CS was associated with increased risk of mortality in patients with asthma, with a significant dose-response relationship between systemic CS use and long-term mortality.
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Affiliation(s)
- Hyun Lee
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jiin Ryu
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Eunwoo Nam
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Korea
| | - Sung Jun Chung
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Yoomi Yeo
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Won Park
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tai Sun Park
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ji-Yong Moon
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tae-Hyung Kim
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang-Heon Kim
- Dept of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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