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Jung Yeon Choi

Seoul National University · Medicine

About the Lab

Professor Jung Yeon Choi's research lab specializes in geriatric medicine and surgical outcomes, with a focus on frailty assessment and its impact on postoperative complications, mortality, and institutionalization in older adults. The lab develops and validates multidimensional frailty scores—particularly the Hip-MFS—using comprehensive geriatric assessment to predict adverse outcomes after orthopedic and oncologic surgeries. A key research direction involves implementing and evaluating delirium prevention programs and ICT-based health management systems for older institutionalized patients. The lab also investigates the predictive value of simple physical performance measures like handgrip strength in comparison to comprehensive frailty tools.

frailty assessmentpostoperative outcomesdelirium preventiongeriatric surgerycomprehensive geriatric assessment

Research Overview

Papers
105
Total Citations
1,340
Papers (5y)
48
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
48total
2021
2022
2023
2024
2025
Citations per year (5y)
407total
20212022202320242025

Selected Papers

15
1
Article|67 citations·2017
Prediction of Mortality and Postoperative Complications using the Hip-Multidimensional Frailty Score in Elderly Patients with Hip Fracture
Jung‐Yeon Choi, Kwan-Jae Cho, Sun‐wook Kim, Sol-Ji Yoon, Min‐gu Kang, Kwang‐Il Kim, Young‐Kyun Lee, Kyung‐Hoi Koo, Cheol‐Ho Kim
SJR Q1Scientific ReportsOA

High mortality and dependent living after hip fracture pose a significant public health concern. Retrospective study was conducted with 481 hip fracture patients (≥65 years of age) undergoing surgery from March 2009 to May 2014. The Hip-MFS was calculated by Comprehensive Geriatric Assessment (CGA). The primary outcome was the 6-month all-cause mortality rate. The secondary outcomes were 1-year all-cause mortality, postoperative complications and prolonged hospital stay, and institutionalization

SurgeryMedicine
2
Article|41 citations·2015
Prediction of Postoperative Complications Using Multidimensional Frailty Score in Older Female Cancer Patients with American Society of Anesthesiologists Physical Status Class 1 or 2
Jung‐Yeon Choi, Sol-Ji Yoon, Sun‐wook Kim, Hee‐Won Jung, Kwang‐Il Kim, Eunyoung Kang, Sung‐Won Kim, Ho‐Seong Han, Cheol‐Ho Kim
SJR Q1Journal of the American College of Surgeons

Multidimensional Frailty Score based on a preoperative comprehensive geriatric assessment is useful for predicting postoperative complications and prolonged hospital stay, even in low-risk elderly women who are undergoing cancer surgery.

Geriatrics and GerontologyMedicine
3
Review|39 citations·2022
Comprehensive geriatric assessment and multidisciplinary team interventions for hospitalized older adults: A scoping review
Jung‐Yeon Choi, Vasuki Rajaguru, Jaeyong Shin, Kwang‐Il Kim
SJR Q1Archives of Gerontology and GeriatricsOA
Geriatrics and GerontologyMedicine
4
Article|30 citations·2020
Comparison of multidimensional frailty score, grip strength, and gait speed in older surgical patients
Jung‐Yeon Choi, Kwang‐Il Kim, YoungRok Choi, Sang Hoon Ahn, Eunyoung Kang, Heung‐Kwon Oh, Duck‐Woo Kim, Eun‐Kyu Kim, Yoo‐Seok Yoon, Sung‐Bum Kang, Hyung‐Ho Kim, Ho‐Seong Han
SJR Q1Journal of Cachexia Sarcopenia and MuscleOA

BACKGROUND: Frail older adults are at increased risk of post-operative morbidity compared with robust counterparts. Simple methods testing frailty such as grip strength or gait speed have shown promising results for predicting post-operative outcome, but there is a debate regarding the most appropriate and precise frailty assessment method. We compared the predictive value of multidimensional frailty score (MFS) with grip strength, gait speed, or conventional risk stratification tool for predict

Geriatrics and GerontologyMedicine
5
Article|19 citations·2019
Impact of a delirium prevention project among older hospitalized patients who underwent orthopedic surgery: a retrospective cohort study
Jung‐Yeon Choi, Kwang‐Il Kim, Min‐gu Kang, Young‐Kyun Lee, Kyung-Hoi Koo, Joo Han Oh, Young Ho Park, Jeewon Suh, Nak‐Hyun Kim, Hyun-Jung Yoo, Ja-hyun Koo, Hyun Mi Moon
SJR Q1BMC GeriatricsOA

BACKGROUND: Postoperative delirium (POD) is a common clinical syndrome with significant negative outcomes. Thus, we aimed to evaluate the feasibility and effectiveness of a delirium screening tool and multidisciplinary delirium prevention project. METHODS: A retrospective cohort study was conducted at a single teaching center in Korea. A cohort of patients who underwent a delirium prevention program using a simple delirium screening tool from December 2018 to February 2019 (intervention group, N

Critical Care and Intensive Care MedicineMedicine
6
Article|19 citations·2021
How does the multidimensional frailty score compare with grip strength for predicting outcomes after hip fracture surgery in older patients? A retrospective cohort study
Jung‐Yeon Choi, Jin-Kak Kim, Kwang‐Il Kim, Young‐Kyun Lee, Kyung‐Hoi Koo, Cheol-Ho Kim
SJR Q1BMC GeriatricsOA

BACKGROUND: Frailty and low handgrip strength (HGS) are associated with adverse outcomes after hip fracture (HF) surgery. We aimed to compare the predictive role of frailty and HGS for adverse outcome in HF patients. METHODS: We included older patients (age ≥ 65 years) who underwent HF surgery to compare the predictive role of HGS and hip-multidimensional frailty score (Hip-MFS) for postoperative complications and mortality. The Hip-MFS was calculated based on comprehensive geriatric assessment

Geriatrics and GerontologyMedicine
7
Article|16 citations·2020
Development of Health-RESPECT: An Integrated Service Model for Older Long-Term Care Hospital/Nursing Home Patients Using Information and Communication Technology
Jung‐Yeon Choi, Kwang‐Il Kim, Jae‐Young Lim, Jin Young Ko, Sooyoung Yoo, Hongsoo Kim, Min‐Ho Lee, Sae-Kyun Jang, Dong Hee Lee, Jungwoo Lee, Young‐Il Jung, In‐Hwan Oh
SJR Q2Annals of Geriatric Medicine and ResearchOA

This study identified the current status and unmet needs of healthcare systems for older adults. We developed an ICT-based system to manage older institutionalized patients. However, the Health-RESPECT service model requires further validation.

General Health ProfessionsHealth Professions
8
Article|14 citations·2018
Impact of frailty on do-not-resuscitate orders and healthcare transitions among elderly Koreans with pneumonia
Jung‐Yeon Choi, Sun‐wook Kim, Sol-Ji Yoon, Min‐gu Kang, Kwang‐Il Kim, Cheol-Ho Kim
SJR Q1Clinical Interventions in AgingOA

We identified the factors associated with DNR orders and their prognoses among elderly Koreans with pneumonia. Frailty was significantly associated with DNR decision and healthcare setting transitions in pneumonia patients.

Geriatrics and GerontologyMedicine
9
Review|12 citations·2022
Assessing frailty using comprehensive geriatric assessment in older patients with hematologic malignancy
Jung‐Yeon Choi, Kwang‐Il Kim
SJR Q2Blood ResearchOA

The incidence of hematologic malignancy increases with age; thus, the number of older patients who require intensive chemotherapy is expected to increase with the aging population. In Korea, 61.8%, 59.3%, 47.0%, and 46.7% of newly diagnosed cases of multiple myeloma, myelodysplastic syndrome, myeloproliferative disorder, and non-Hodgkin lymphoma, respectively, occurred in patients aged >65 years in 2018. Health status among older patients, defined by frailty, age-related syndrome of physiologica

Geriatrics and GerontologyMedicine
10
Article|11 citations·2020
Validation of an integrated service model, Health-RESPECT, for older patients in long-term care institution using information and communication technologies: protocol of a cluster randomised controlled trial
Jung‐Yeon Choi, Kwang‐Il Kim, Hongsoo Kim, Young-il Jung, In‐Hwan Oh, Seungyeon Chun, Gi-Soo Kim, Jae‐Young Lim, Jin Young Ko
SJR Q1BMJ OpenOA

INTRODUCTION: There is an increased healthcare need to manage institutionalised older patients owing to the ageing population. To overcome substantial future challenges, the Health-RESPECT (caRE Systems for Patients/Elderly with Coordinated care using icT), a new information and communication technologies based integrated management service model, was developed to provide effective management, enable consultation with distant professionals and share medical information between acute care hospita

General Health ProfessionsHealth Professions
11
Article|11 citations·2022
Analysis of blood pressure and blood pressure variability pattern among older patients in long-term care hospitals: an observational study analysing the Health-RESPECT (integrated caRE Systems for elderly PatiEnts using iCT) dataset
Jung‐Yeon Choi, Seungyeon Chun, Hongsoo Kim, Young‐Il Jung, Sooyoung Yoo, Kwang‐Il Kim
SJR Q1Age and AgeingOA

OBJECTIVES: There are limited data regarding blood pressure (BP) variability among older adults living in long-term care hospitals (LTCHs). We aimed to collect data from LTCH and analyse BP characteristics and its variability among these patients using a novel platform. METHODS: The Health-RESPECT (integrated caRE Systems for elderly PatiEnts using iCT) platform was used to construct a daily BP dataset using data of 394 older patients from 6 LTCHs. BP variability was expressed as coefficient of

Cardiology and Cardiovascular MedicineMedicine
12
Article|10 citations·2023
Development and Validation of a Prognostic Classification Model Predicting Postoperative Adverse Outcomes in Older Surgical Patients Using a Machine Learning Algorithm: Retrospective Observational Network Study
Jung‐Yeon Choi, Sooyoung Yoo, Wongeun Song, Seok Kim, Hyunyoung Baek, Jun Suh Lee, Yoo‐Seok Yoon, Seonghae Yoon, Hae‐Young Lee, Kwang‐Il Kim
SJR Q1Journal of Medical Internet ResearchOA

BACKGROUND: Older adults are at an increased risk of postoperative morbidity. Numerous risk stratification tools exist, but effort and manpower are required. OBJECTIVE: This study aimed to develop a predictive model of postoperative adverse outcomes in older patients following general surgery with an open-source, patient-level prediction from the Observational Health Data Sciences and Informatics for internal and external validation. METHODS: We used the Observational Medical Outcomes Partnershi

Critical Care and Intensive Care MedicineMedicine
13
Article|9 citations·2024
Information technology-supported integrated health service for older adults in long-term care settings
Jung‐Yeon Choi, Hongsoo Kim, Seungyeon Chun, Young‐Il Jung, Sooyoung Yoo, In‐Hwan Oh, Gi-Soo Kim, Jin Young Ko, Jae‐Young Lim, Min‐Ho Lee, Jongseon Lee, Kwang‐Il Kim
SJR Q1BMC MedicineOA

BACKGROUND: To examine the effectiveness and safety of a data sharing and comprehensive management platform for institutionalized older patients. METHODS: We applied information technology-supported integrated health service platform to patients who live at long-term care hospitals (LTCHs) and nursing homes (NHs) with cluster randomized controlled study. We enrolled 555 patients aged 65 or older (461 from 7 LTCHs, 94 from 5 NHs). For the intervention group, a tablet-based platform comprising com

Geriatrics and GerontologyMedicine
14
Article|9 citations·2018
Immunogenicity of the Varicella-Zoster Vaccine in Community-Dwelling Non-robust Elderly Individuals Compared to Robust Elderly Individuals: A Prospective Cohort Study
Jung‐Yeon Choi, Min‐gu Kang, Kyoung Un Park, Wan Beom Park, Kwang‐Il Kim, Eu Suk Kim, Hong Bin Kim, Kyoung‐Ho Song, Cheol-Ho Kim
SJR Q1The Journals of Gerontology Series A

To determine whether immunogenicity of the herpes zoster live-attenuated vaccine (ZVL) in elderly individuals is influenced by frailty status and cytokine levels, individuals aged at least 65 years were prospectively administered ZVL after their frailty status and cytokine levels were assessed. Humoral and cellular immunogenicity were assessed using enzyme-linked immunosorbent assays for the varicella-zoster virus-specific IgG antibody and varicella-zoster virus-specific enzyme-linked immunospot

EpidemiologyMedicine
15
Article|9 citations·2022
COMPrehensive geriatric AsseSSment and multidisciplinary team intervention for hospitalised older adults (COMPASS): a protocol of pragmatic trials within a cohort
Jung‐Yeon Choi, Ji Yeon Lee, Jaeyong Shin, Chang Oh Kim, Kwang Joon Kim, Kwang Joon Kim, In Gyu Hwang, Yun‐Gyoo Lee, Su‐Jin Koh, Soojung Hong, Sol-Ji Yoon, Min‐gu Kang
SJR Q1BMJ OpenOA

INTRODUCTION: There is an increased demand for services for hospitalised older patients with acute medical conditions due to rapidly ageing population. The COMPrehensive geriatric AsseSSment and multidisciplinary team intervention for hospitalised older adults (COMPASS) study will test the effectiveness of comprehensive geriatric assessment (CGA) and multidisciplinary intervention by comparing it with conventional care among acute hospitalised older adults in Korea. METHODS AND ANALYSIS: A multi

Geriatrics and GerontologyMedicine

Research Areas

Geriatrics and GerontologyCardiology and Cardiovascular MedicinePhysiologySurgeryEpidemiologyGeneral Health Professions

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