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Hongsoo Kim

Seoul National University · Medicine

About the Lab

Professor Hongsoo Kim's research lab specializes in long-term care policy, geriatric assessment, and health services research, with a focus on improving care coordination and outcomes for older adults with complex health needs. The lab investigates the reliability and implementation of standardized assessment tools—such as interRAI instruments—in diverse care settings, particularly in Asian contexts like South Korea. It also examines the impact of long-term care insurance systems, nurse practice environments, and socioeconomic determinants on health outcomes among older populations. The lab’s work bridges health policy, gerontology, and health services research to support person-centered, evidence-based long-term care systems.

long-term caregeriatric assessmenthealth services researchcare coordinationhealth policy

Research Overview

Papers
315
Total Citations
4,061
Papers (5y)
40
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
40total
2022
2023
2024
2025
2026
Citations per year (5y)
85total
20222023202420252026

Selected Papers

15
1
Article|135 citations·2014
Reliability of the interRAI Long Term Care Facilities (LTCF) and interRAI Home Care (HC)
Hongsoo Kim, Young‐Il Jung, M. Sung, Ji‐Yoon Lee, Ju Young Yoon, Jong‐Lull Yoon
SJR Q2Geriatrics and gerontology international/Geriatrics & gerontology internationalOA

AIM: Sharing clinical information across care settings is a cornerstone to providing quality care to older people with complex conditions. The purpose of the present study was to examine the reliability of the interRAI Long Term Care Facilities (interRAI LTCF) and the interRAI Home Care (interRAI HC), comprehensive and integrated assessment instruments with common core items, in Korea, an Asian county where comprehensive geriatric assessment is not widely used in long-term care. METHODS: The Kor

General Health ProfessionsHealth Professions
2
Article|117 citations·2020
A decade of public long-term care insurance in South Korea: Policy lessons for aging countries
Hongsoo Kim, Soonman Kwon
SJR Q1Health PolicyOA

South Korea proactively introduced public long-term care insurance (LTCI) in 2008 when older people were only about one-tenth of the total population. At that time, Korea switched from a tax-based, local-government-operated LTC program targeting low-income older people to the current universal public LTCI run by the National Health Insurance Service, the single public insurer. The LTCI program provides a comprehensive package of home- and institution-based care mainly targeting older people who

Sociology and Political ScienceSocial Sciences
3
Article|74 citations·2013
Utilization of long-term care services under the public long-term care insurance program in Korea: Implications of a subsidy policy
Hongsoo Kim, Soonman Kwon, Nan‐He Yoon, Kyung‐Rae Hyun
SJR Q1Health Policy
Sociology and Political ScienceSocial Sciences
4
Article|73 citations·2010
Scheduled and unscheduled hospital readmissions among patients with diabetes.
Hongsoo Kim, Joseph S. Ross, Gail D’Eramo Melkus, Zhonglin Zhao, Kenneth S. Boockvar
PubMedOA

OBJECTIVES: To describe rates of scheduled and unscheduled readmissions among midlife and older patients with diabetes and to examine associated socioeconomic and clinical factors. STUDY DESIGN: Population-based data set study. METHODS: Using the 2006 California State Inpatient Dataset, we identified 124,967 patients 50 years or older with diabetes who were discharged from acute care hospitals between April and September 2006 and examined readmissions in the 3 months following their index hospit

Cardiology and Cardiovascular MedicineMedicine
5
Article|67 citations·2008
Hospital Nurses' Perception of the Geriatric Nurse Practice Environment
Marie Boltz, Elizabeth Capezuti, Susan Bowar‐Ferres, Robert G. Norman, Michelle Secic, Hongsoo Kim, Susan Fairchild, Mathy Mezey, Terry Fulmer
SJR Q1Journal of Nursing Scholarship

PURPOSE: To test the relationship between nurses' perceptions of the geriatric nurse practice environment (GNPE) and perceptions of geriatric-care delivery, and geriatric nursing knowledge. DESIGN: A secondary analysis of data collected by the New York University Hartford Institute Benchmarking Service staff using a retrospective, cross-sectional, design. METHODS: Responses of 9,802 direct-care registered nurses from 75 acute-care hospitals in the US that administered the GIAP (Geriatric Institu

Neuropsychology and Physiological PsychologyPsychology
6
Article|58 citations·2015
Health care utilization by people with disabilities: A longitudinal analysis of the Korea Welfare Panel Study (KoWePS)
Boyoung Jeon, Soonman Kwon, Hongsoo Kim
SJR Q1Disability and health journal
Public Health, Environmental and Occupational HealthMedicine
7
Article|53 citations·2015
Delivery of institutional long-term care under two social insurances: Lessons from the Korean experience
Hongsoo Kim, Young‐Il Jung, Soonman Kwon
SJR Q1Health PolicyOA

Little is known about health and social care provision for people with long-term care (LTC) needs under multiple insurances. The aim of this study is to compare the profile, case-mix, and service provision to older people at long-term care hospitals (LTCHs) covered by the national health insurance (NHI) with those of older people at long-term care facilities (LTCFs) covered by the public long-term care insurance (LTCI) in Korea. A national LTC survey using common functional measures and a case-m

General Health ProfessionsHealth Professions
8
Article|47 citations·2017
Evaluation of a technology-enhanced integrated care model for frail older persons: protocol of the SPEC study, a stepped-wedge cluster randomized trial in nursing homes
Hongsoo Kim, Yeon‐Hwan Park, Young‐Il Jung, Hyoungshim Choi, Seyune Lee, Gi-Soo Kim, Dongwook Yang, Myunghee Cho Paik, Tae-Jin Lee
SJR Q1BMC GeriatricsOA

ISRCTN11972147.

EpidemiologyMedicine
9
Article|41 citations·2009
The Nursing Practice Environment and Nurse-Perceived Quality of Geriatric Care in Hospitals
Hongsoo Kim, Elizabeth Capezuti, Marie Boltz, Susan Fairchild
SJR Q1Western Journal of Nursing Research

The relationships between general and geriatric-specific nursing practice environments (NPEs) and nurse-perceived quality of geriatric care in hospitals were examined using the Nurses Improving Care for Healthsystems Elders benchmarking database. The overall general NPE was negatively related, but the overall geriatric-specific NPE was positively related to quality of geriatric care. Among five subdomains of the general NPE measured by the Practice Environment Scale of the Nursing Work Index, Nu

General Health ProfessionsHealth Professions
10
Article|38 citations·2015
Predictors and outcomes of unplanned readmission to a different hospital
Hongsoo Kim, William W. Hung, Myunghee Cho Paik, Joseph S. Ross, Zhonglin Zhao, Gi-Soo Kim, Kenneth S. Boockvar
SJR Q2International Journal for Quality in Health CareOA

OBJECTIVES: To examine patient, hospital and market factors and outcomes associated with readmission to a different hospital compared with the same hospital. DESIGN: A population-based, secondary analysis using multilevel causal modeling. SETTING: Acute care hospitals in California in the USA. PARTICIPANTS: In total, 509 775 patients aged 50 or older who were discharged alive from acute care hospitals (index hospitalizations), and 59 566 who had a rehospitalization within 30 days following their

Cardiology and Cardiovascular MedicineMedicine
11
Article|38 citations·2020
Effectiveness of a Technology-Enhanced Integrated Care Model for Frail Older People: A Stepped-Wedge Cluster Randomized Trial in Nursing Homes
Hongsoo Kim, Young‐Il Jung, Gi-Soo Kim, Hyoungshim Choi, Yeon‐Hwan Park
SJR Q1The GerontologistOA

BACKGROUND AND OBJECTIVES: The objective of this study was to evaluate the impact of an information and communication technologies (ICT)-enhanced, multidisciplinary integrated care model, called Systems for Person-centered Elder Care (SPEC), on frail older adults at nursing homes. RESEARCH DESIGN AND METHODS: SPEC was implemented at 10 nursing homes in South Korea in random order using a stepped-wedge design. Data were collected on all participating older residents in the homes before the first

Geriatrics and GerontologyMedicine
12
Article|36 citations·2011
Potentially preventable hospitalizations among older adults with diabetes.
Hongsoo Kim, Drew A. Helmer, Zhonglin Zhao, Kenneth S. Boockvar
PubMed

OBJECTIVES: To examine prevalence of and factors associated with different types of potentially preventable hospitalizations (PPHs) among older adults with diabetes. STUDY DESIGN: Population-based secondary analysis. METHODS: We analyzed the California State Inpatient Databases, 2005 to 2006. PPHs for 3 acute and 5 chronic ambulatory care–sensitive conditions relevant for older adults were defined by applying the Prevention Quality Indicator algorithm developed by the Agency for Health Research

EpidemiologyMedicine
13
Article|35 citations·2019
Urban–rural differences in multimorbidity and associated factors in China and Korea: A population‐based survey study
Jae Yoon Yi, Hongsoo Kim, Iris Chi
SJR Q2Geriatrics and gerontology international/Geriatrics & gerontology international

AIM: To analyze differences in multimorbidity rates and associated factors between urban and rural regions of Korea and China. METHODS: Data were drawn from the Gateway to Global Aging Datasets. We describe multimorbidity patterns across rural and urban settings in each of the countries. Multivariate regression was used to identify factors associated with multimorbidity in each of the countries by region. RESULTS: In China, 31% of the sample had multimorbidity, with significantly higher proporti

EpidemiologyMedicine
14
Article|34 citations·2007
Factor Structure of the Geriatric Care Environment Scale
Hongsoo Kim, Elizabeth Capezuti, Marie Boltz, Susan Fairchild, Terry Fulmer, Mathy Mezey
SJR Q1Nursing Research

The GCES is a reliable measure of RN perception of how care provided to older adults reflects age-sensitive principles and the organizational practice environment that supports or hinders care delivery.

General Health ProfessionsHealth Professions
15
Article|34 citations·2011
Depressive symptoms, chronic medical illness, and health care utilization: findings from the Korean Longitudinal Study of Ageing (KLoSA)
Hongsoo Kim, Sang Min Park, Soong‐Nang Jang, Soonman Kwon
SJR Q1International PsychogeriatricsOA

Self-reported depressive symptoms and self-reported CMI are prevalent among older adults in South Korea, often occurring together and possibly increasing health care utilization. These findings imply a need for chronic disease management targeting older people with complex mental and medical conditions and evaluation of its effects on health outcomes and service use.

HealthSocial Sciences

Research Areas

General Health ProfessionsPulmonary and Respiratory MedicineSociology and Political ScienceComputer Networks and CommunicationsSurgeryPublic Health, Environmental and Occupational Health

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