Jiin Ryu
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View article: Impacts of regular physical activity on hospitalisation in chronic obstructive pulmonary disease: a nationwide population-based study
Impacts of regular physical activity on hospitalisation in chronic obstructive pulmonary disease: a nationwide population-based study Open
Introduction Studies that comprehensively evaluate the association between physical activity (PA) levels, particularly by quantifying PA intensity, and healthcare use requiring emergency department (ED) visit or hospitalisation in patients…
View article: The relationship between childhood asthma and socioeconomic status: a Korean nationwide population-based study
The relationship between childhood asthma and socioeconomic status: a Korean nationwide population-based study Open
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 retrospecti…
View article: Healthcare Utilization and Medical Cost of Gastrointestinal Reflux Disease in Non-tuberculous Mycobacterial Pulmonary Disease: A Population-Based Study, South Korea, 2009–2017
Healthcare Utilization and Medical Cost of Gastrointestinal Reflux Disease in Non-tuberculous Mycobacterial Pulmonary Disease: A Population-Based Study, South Korea, 2009–2017 Open
Gastroesophageal reflux disease (GERD) is a common non-respiratory comorbidity in patients with non-tuberculous mycobacterial pulmonary disease (NTM-PD). However, little is known about the association between GERD and healthcare utilizatio…
View article: Increased Incidence and Associated Risk Factors of Aspergillosis in Patients with Bronchiectasis
Increased Incidence and Associated Risk Factors of Aspergillosis in Patients with Bronchiectasis Open
There are insufficient data regarding the relationship between non-cystic fibrosis bronchiectasis and incident aspergillosis. We performed a population-based, matched cohort study using data from the Korean National Health Insurance databa…
View article: Coexisting Respiratory Comorbidities Increase Mortality in Patients with Asthma: National Cohort Study
Coexisting Respiratory Comorbidities Increase Mortality in Patients with Asthma: National Cohort Study Open
Background: Asthmatic patients are generally considered to have an increased risk of mortality compared with subjects without asthma. However, this issue has less evaluated using nationally representative data. Moreover, it is unclear whet…
View article: Short-Acting Beta2-Agonist Use in Asthma in Korea: A 10-Year Population-Based Study
Short-Acting Beta2-Agonist Use in Asthma in Korea: A 10-Year Population-Based Study Open
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 S…
View article: Gastro-oesophageal reflux disease increases healthcare use and medical costs in patients with bronchiectasis: a Korean nationwide population-based study
Gastro-oesophageal reflux disease increases healthcare use and medical costs in patients with bronchiectasis: a Korean nationwide population-based study Open
Background: Gastro-oesophageal reflux disease (GORD) is not only a common aetiology but also accompanying comorbidity of non-cystic fibrosis bronchiectasis (bronchiectasis). However, the association between GORD and the disease burden of b…
View article: Coexisting Respiratory Comorbidities Increase Mortality in Patients with Asthma: A National Cohort Study
Coexisting Respiratory Comorbidities Increase Mortality in Patients with Asthma: A National Cohort Study Open
Background: Asthmatic patients are generally considered to have an increased risk of mortality compared with subjects without asthma. However, this issue has not been fully evaluated using nationally representative data. In addition, it is…
View article: Incidence of bronchiectasis concerning tuberculosis epidemiology and other ecological factors: A Korean National Cohort Study
Incidence of bronchiectasis concerning tuberculosis epidemiology and other ecological factors: A Korean National Cohort Study Open
In South Korea, the estimated incidences of bronchiectasis were 147-229 cases per 100000 with a decreasing trend. It may follow the concurrent decrease in the TB prevalence and incidence, and favourable personal and socioeconomic condition…
View article: Association of Hypertension With the Risk and Severity of Epistaxis
Association of Hypertension With the Risk and Severity of Epistaxis Open
This study suggests that patients with hypertension had an increased risk of epistaxis requiring hospital visits. In addition, epistaxis in patients with hypertension appeared to need more emergency department visits and require more poste…
View article: Bronchiectasis and increased mortality in patients with corticosteroid-dependent severe asthma: a nationwide population study
Bronchiectasis and increased mortality in patients with corticosteroid-dependent severe asthma: a nationwide population study Open
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 …
View article: Coexisting COPD Increases Mortality in Patients With Corticosteroid-Dependent Asthma: A Nationwide Population-Based Study
Coexisting COPD Increases Mortality in Patients With Corticosteroid-Dependent Asthma: A Nationwide Population-Based Study Open
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 patie…
View article: Clinical Benefit of Treatment of Stage-1, Low-Risk Hypertension
Clinical Benefit of Treatment of Stage-1, Low-Risk Hypertension Open
Evidence about the benefits of treating uncomplicated, low-risk, stage-1 hypertension is lacking. The study aimed to investigate the association between mean blood pressure (BP) and clinical outcomes, and to determine optimal BPs in treate…
View article: Synthesis of Fatty Acid Methyl Esters Using Mixed Enzyme in a Packed Bed Reactor
Synthesis of Fatty Acid Methyl Esters Using Mixed Enzyme in a Packed Bed Reactor Open
Fatty acid methyl esters were synthesized from palm fatty acid distillate (PFAD) and methanol in a packed bed reactor via lipase-catalyzed esterification. The PFAD consisted of 91 wt% of free fatty acids, 2 wt% monoacylglycerides, 3 wt% di…