Pildoosung Sung
Hanyang University · Social Sciences
About the Lab
Professor Pildoosung Sung's research lab focuses on aging, social relationships, and health disparities in East and Southeast Asia, with a particular emphasis on understanding the interplay between social integration, mental health, and well-being among older adults. The lab investigates caregiving experiences, social network dynamics, social isolation, lifelong learning, volunteering, and interpersonal trust, using advanced longitudinal and multivariate statistical methods such as latent profile analysis, latent transition analysis, and cross-lagged panel models. A central theme is the cultural specificity of social trust and its implications for health outcomes in East Asian societies.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Objective This study examines distinct types of caregiving experience, each formed by varied combinations of caregiving burden and benefits, and their association with caregiver depressive symptoms and quality of life. Methods: We apply latent profile analysis and multivariable regression to data on 278 caregivers participating in the Caregiving Transitions among Family Caregivers of Elderly Singaporeans (TraCE) study in 2019–2020. Results: We identify four caregiving experience types: (1) balan
OBJECTIVE: Network typology studies have identified heterogeneous types of older adults' social networks. However, little is known about stability and change in social network types over time. We investigate transitions in social network types among older adults, aged 60 years and older, and factors associated with such transitions. METHODS: We used data on 1,305 older adults, participating in 2 waves of a national, longitudinal survey, conducted in 2016-2017 and 2019, in Singapore. Latent trans
OBJECTIVES: This study identified distinct social isolation profiles among caregivers, each formed by varied combinations of social disconnectedness and loneliness, and examined if and how the profiles were associated with caregiver burden. METHODS: Latent class analysis and multivariable regression were applied to data from 266 caregivers of community-dwelling older Singaporeans with cognitive impairment. RESULTS: Two caregiver social isolation profiles were identified: strongly connected, not
OBJECTIVES: Lifelong learning and volunteering contribute to not only health and well-being, but also social inclusion and cohesion among older adults. However, less is known about whether lifelong learning and volunteering promote each other. This study examined the reciprocal relationship between older adults' lifelong learning and volunteering and whether the relationship varied by the purpose of lifelong learning. METHODS: Cross-lagged panel models were applied to data on 2,608 older adults,
OBJECTIVES: The reciprocal relationship between oral health and mental health, and the underlying mechanisms remain underexplored. This study examined whether formal social engagement mediates the relationship between oral health and mental health in both directions. METHODS: Cross-lagged panel models with two-wave mediation were applied to data from 3860 older adults, aged 65 years or above, in the two waves of the Korean Longitudinal Study of Aging conducted in 2018 and 2020. Oral health was m
This study aims to examine the relationship between types of interpersonal trust and health in East Asia. We doubt that generalized trust toward “most people” is a valid and reliable measure of interpersonal trust in East Asia. We thus employ specific measures of in-group and out-group trust to test whether and how each type of trust is associated with self-rated health. We use data from the 2012 East Asian Social Survey administered in China ( n = 5819), Japan ( n = 2335), South Korea ( n = 139
OBJECTIVES: This study examined the association between met and unmet needs of older adults with cognitive impairment living in the community and unique types of caregiving experience, each comprising different levels of caregiving burden and benefits. METHODS: Latent class analysis and multivariable regression were applied to data on 266 caregivers of community-dwelling Singaporean older adults, aged 60 years and above, with cognitive impairment who participated in a community-based dementia ca
INTRODUCTION: This study examined distinct profiles of met and unmet care needs among community-dwelling older adults with cognitive impairment and their association with caregiver strain. METHODS: Latent class analysis and multivariable regression were applied to data from 266 caregivers of older Singaporeans, aged 60 years and above, with cognitive impairment. Care needs were evaluated by caregivers using the Camberwell Assessment of Need for the Elderly. Caregiver strain was measured by the Z
Little is known about whether and why social networks protect mental health among informal caregivers. This study examined the association between informal caregiver social network types and depressive symptoms and the mediatory mechanism of psychological resilience. Latent class analysis, applied to cross-sectional data on 278 Singaporean caregivers, identified four social network types: restricted (42%), friend (16%), family (21%), and diverse (21%). Path analysis showed that the diverse socia
AIM: Family caregivers (CGs) and care recipients (CRs) with cognitive impairment are vulnerable to loneliness, yet the dynamics of loneliness within CG-CR dyads remain underexplored. This study used latent class analysis to identify distinct profiles of loneliness in CG-CR dyads and examine their association with caregiver burden. METHODS: Data from 260 dyads of family CGs and CRs with cognitive impairment in Singapore were analyzed. A three-item UCLA Loneliness Scale assessed loneliness in CGs
INTRODUCTION: Identifying health conditions of persons with cognitive impairment (PCI) in the community and exploring their implications for caregiving experience are vital for effective allocation of healthcare resources. This study examined distinct PCI health profiles among community-dwelling PCI and their association with caregiving burden and benefits. METHODS: Latent profile analysis and multivariable regression were applied to dyadic data from 266 PCI and their caregivers in Singapore. RE
ObjectivesRelatively little attention has been paid to the underlying processes and conditions leading to loneliness among caregivers of older persons with cognitive impairment (PCI). Drawing upon the caregiver stress-process model and the social relationship expectations framework, this study examined the mediating role of social isolation and the moderating role of caregiver personal mastery in the association between PCI memory and behavioral problems and caregiver loneliness.MethodsStructura
INTRODUCTION: Loneliness in older persons with cognitive impairment (PCI) may beget loneliness in their family caregivers, depending on buffering resources caregivers possess. This study examined the association between loneliness in older PCI and loneliness experienced by their family caregivers, and the moderating role of caregiver mastery in this association. METHODS: Dyadic data from 135 PCI and their family caregivers in Singapore were analyzed using multivariable regression. Loneliness was
Research Areas
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