byoungduck han

clinical assistant professor

Seoul National University Hospital
Country flagSouth Korea

Research Interests

Explore related searches

Contact this professor

Get a free first email built on one of their papers, ready for you to edit and send yourself.

About

Byoungduck Han is a Clinical Assistant Professor at Korea University Guro Hospital in South Korea. His research focuses on the relationship between body composition, metabolic health, and chronic diseases, as evidenced by his recent publications on topics such as end-stage renal disease, obesity trends, and cardiovascular risks associated with menopause. He has contributed to the understanding of health indicators and their implications for quality of life in various populations.

Articles (15)

Year:

2025

Year:

2024

Year:

2024

Year:

2023

Background and Objectives: Hand grip strength (HGS) and osteoporosis are known to be closely related to the health condition of the elderly, respectively. Comprehensive studies including adults over middle age were insufficient. This study aimed to investigate the relationship between HGS with osteoporosis and health-related quality of life (HRQoL) in adults aged >40 years. Materials and Methods: This cross-sectional analysis included data from 13,966 people aged >40 years between 2015 to 2018 provided by the Korea National Health and Nutrition Examination Survey. The HGS was divided into strong and weak quartiles, defined as the highest and lowest quartiles, respectively. We used the European Quality of Life Scale-Five dimensions (EQ-5D) for HRQoL. We performed multiple logistic regression and post hoc analysis to confirm the relationship between the four groups and HRQoL. Results: Osteoporotic patients with weak HGS showed the lowest EQ-5D index (0.87 ± 0.01) among all groups and had a significantly impaired HRQoL in all EQ-5D dimensions, at least 1.75 times more than healthy individuals with strong HGS (0.95 ± 0.00). Osteoporotic patients with weak HGS showed, notably, 2.68 times more impaired mobility compared to healthy individuals with strong HGS among all five dimensions of the EQ-5D. In self-care, significant sex differences in impaired HRQoL were observed (males 6.03, 2.23–16.35; females 2.51, 1.70–3.71). Conclusions: Weak HGS and the presence of osteoporosis were associated with low HRQoL, respectively. Middle-aged and older adults with both weak HGS and osteoporosis showed poorer HRQoL compared to healthy middle-aged and older adults. This suggests that HGS is a possible factor for predicting poor HRQoL in adults aged >40 years with or without osteoporosis. It is necessary to assess the risk of low HRQoL by measuring HGS and confirming whether osteoporosis is accompanied in adults over middle age.

Year:

2023

Background Mortality from cardiovascular diseases in Asian populations is considerable. Menopause is a risk‐enhancing factor for cardiovascular disease, but it is unclear whether menopause is an independent risk factor for cardiovascular disease and mortality in Asian women. Methods and Results A total of 1 159 405 postmenopausal women, who had participated in the health examinations of the Korean National Health Insurance Service in 2009, were analyzed, and their reproductive histories were taken. A multivariable Cox proportional hazard model assessed the hazard ratios (HRs) of myocardial infarction (MI), ischemic stroke, and all‐cause mortality, according to the history of premature menopause and age at menopause. After an average 10‐year follow‐up, there were 31 606, 45 052, and 77 680 new cases of MI, ischemic stroke, and all‐cause mortality, respectively. The women with premature menopause exhibited increased risks of MI (HR, 1.40 [95% CI, 1.31–1.50]), ischemic stroke (HR, 1.24 [95% CI, 1.17–1.31]), and all‐cause mortality (HR, 1.19 [95% CI, 1.14–1.24]) when compared with women with menopause aged ≥50 years. The highest risk was evident with menopause between the ages of 30 and 34 years (HR for MI, 1.52 [95% CI, 1.30–1.78]; HR for ischemic stroke, 1.29 [95% CI, 1.12–1.48]; HR for all‐cause mortality, 1.33 [95% CI, 1.20–1.47]) when compared with women with menopause aged ≥50 years. Conclusions Earlier age at menopause was associated with increased risks for MI, ischemic stroke, and all‐cause mortality. Future guidelines and risk assessment tools should consider menopause as an independent risk factor of cardiovascular disease in Korean women.

Year:

2023

Year:

2023

Year:

2023

Year:

2022

Year:

2022

Year:

2021

Year:

2021

Year:

2021

Year:

2020

Year:

2020

Collaborators (12)

Jihyun Yoon

Clinical assistant professor (E)

Seoul National University Hospital

SOUTH KOREA
View details

Youn Seon Choi

Professor

Seoul National University Hospital

SOUTH KOREA
View details

Gyu Lee

Yeungnam University Medical Center

SOUTH KOREA
View details

Minsung SOHN

-

SOUTH KOREA
View details

Ga Eun Nam

-

SOUTH KOREA
View details

Yong Gyu Park

Professor

Catholic University of Korea School of Medicine

SOUTH KOREA
View details

Sun Young Yim

Associate professor

Seoul National University Hospital

SOUTH KOREA
View details

Jang Won Son

Associate professor

The Catholic University of Korea

SOUTH KOREA
View details

Seok Kang

Seoul National University Hospital

SOUTH KOREA
View details

Joung Sik Son

Seoul National University Hospital

SOUTH KOREA
View details

Donghyun Kim

Associate Professor

Seoul National University College of Medicine

SOUTH KOREA
View details

Yang‐Hyun Kim

-

SOUTH KOREA
View details
ApplyKite TwinLearns as you apply

Make your next move.

Prepare your application

Review drafts before you send them.