Social Mobility and Cognitive Impairment Among Korean Older Adults: Does Gender Matter?

The purpose of this study is to investigate the association between social mobility and cognitive impairment among older adults in Korea. The study sample is drawn from nationally representative data, which comes from the 2016 Korean Longitudinal Study of Ageing (KLoSA). The final sample consists of 4264 KLoSA respondents aged 65 or older.

Multi-group frailty trajectories among older Koreans: Results from the Korean Longitudinal Study of Aging.

Background: Studies that examined changes in frailty in older populations have been increasing. However, frailty patterns are often portrayed as having single trajectories corresponding to age, and different courses of change in frailty and related factors remain unexplored.

Objectives: We aimed to identify distinct frailty trajectories over time and examine the relationship of frailty trajectories with the sociodemographic and lifestyle-related factors among older Koreans.

Trajectories of cognitive decline by widowhood status among Korean older adults.

Objectives: Given the limited evidence regarding the longitudinal impact of widowhood on cognitive function in later life, the present study aimed to investigate the longitudinal effect of widowhood status on cognitive change among Korean older adults.

Methods: The study sample was drawn from a nationally representative data set, the Korean Longitudinal Study of Ageing (KLoSA); it consisted of 3,660 Korean adults aged 60 and over who were married at baseline. Our dependent variable, cognitive function, was measured by the Korean version of the Mini-Mental State Examination (K-MMSE).

Body mass index and trajectories of cognitive decline among older Korean adults.

This study examined the relationship between body mass index (BMI) and trajectories of cognitive decline among older Korean adults. Participants were a nationally representative sample of 5126 Korean adults aged 60 or older from the Korean Longitudinal Study of Aging (KLoSA: 2006-2014). The main outcome variable, cognitive function, was measured with the Korean Mini-Mental State Examination (K-MMSE).

Volunteering among First-Generation Asian Ethnic Groups Residing in California.

This study was a cross-sectional investigation of volunteer activity among four distinct Asian ethnic subgroups-Chinese, Filipino, Korean, and Vietnamese-who have immigrated to the United States. Data from the 2011-2012 California Health Interview Survey (CHIS) were used with an analytic sample of Chinese (n = 547), Filipino (n = 229), Korean (n = 490), and Vietnamese (n = 546) adults 50 and older. A series of logistic regression models were estimated to examine differences and similarities across the four ethnic groups in volunteer activity.

Gender-Specific Associations of Sensory Impairments with Depression and Cognitive Impairment in Later Life.

Objective: Sensory impairments, such as vision and hearing impairments, increase with age, and studies have shown that self-reported vision and hearing impairments are associated with adverse mental health outcomes in later life. Although gender differences may exist in the associations between sensory impairments and geriatric mental health outcomes, little research has been done examining gender differences in the above associations. Therefore, the purpose of this study was to investigate the relationship between self-reported sensory impairments and geriatric mental health outcomes with the aim of determining whether any association differs by gender.

Childhood Misfortune and Adult Health in a National Study.

This study investigated the relationship between childhood misfortune and 10-year change in health and whether this relationship was mediated by the quality of social relations. We used data from the Midlife in the United States (MIDUS) national longitudinal study, 1995-1996 (Time 1) and 2005-2006 (Time 2). Childhood misfortune was measured at Time 1 using indicators of financial strain, family structure, and abuse.

Gender-Specific Incidence and Predictors of Cognitive Impairment among Older Koreans: Findings from a 6-Year Prospective Cohort Study.

Objective: This study investigated gender-specific incidence and predictors of cognitive impairment among community-dwelling older adults in South Korea.

Methods: Using data from the 2006 and 2012 Korean Longitudinal Study of Ageing (KLoSA), 925 females and 834 males aged 65 and over without cognitive impairment at 2006 were analyzed separately. Cognitive impairment was measured based on the Korean version of the Mini-Mental State Exam (K-MMSE) normative score.

Associations between healthy lifestyles and health outcomes among older Koreans.

Aim: Healthy lifestyles have been found to be positively associated with physical and mental health outcomes in later life. Although multiple health behaviors have the potential to enhance health among older adults, little is known about a multiple behavior approach. Therefore, the purpose of the present study was to examine the relationship between multiple healthy lifestyles and health outcomes among Korean older adults.

Socioeconomic Status Across the Life Course and Cognitive Function Among Older Adults: An Examination of the Latency, Pathways, and Accumulation Hypotheses.

Objective: This study investigated the relationship between life course socioeconomic status (SES) and cognitive function among older adults in the United States over a 12-year observation period. The mediation of adult SES on the association between childhood SES and cognition was examined, along with the relationship between cumulative SES and cognition.

Method: Using a nationally representative sample from the Health and Retirement Study, cognitive status and change in cognition from 1998 to 2010 were examined using growth curve models.

Statistical methods used in articles published by the Journal of Periodontal and Implant Science.

Purpose: The purposes of this study were to assess the trend of use of statistical methods including parametric and nonparametric methods and to evaluate the use of complex statistical methodology in recent periodontal studies.

Methods: This study analyzed 123 articles published in the Journal of Periodontal & Implant Science (JPIS) between 2010 and 2014. Frequencies and percentages were calculated according to the number of statistical methods used, the type of statistical method applied, and the type of statistical software used.

Risk factors related to cognitive functioning: a cross-national comparison of U.S. and Korean older adults.

The purpose of this study was to conduct a cross-national comparison of factors related to cognitive functioning in later life in a U.S. and Korean sample.

Risk factors related to cognitive functioning: a cross-national comparison of U.S. and Korean older adults.

The purpose of this study was to conduct a cross-national comparison of factors related to cognitive functioning in later life in a U.S. and Korean sample.

Alcohol consumption and cognitive impairment among Korean older adults: does gender matter?

Background: This study investigated gender differences in the relationship between alcohol consumption and cognitive impairment among older adults in South Korea.

Methods: Using data from the Korean Longitudinal Study of Ageing, 2,471 females and 1,657 males were analyzed separately. Cognitive impairment was measured based on the Korean version of the Mini-Mental State Exam score.

Intergenerational financial exchange and the psychological well-being of older adults in the Republic of Korea.

Objectives: This study examined whether the exchange of instrumental support (i.e., financial resources) among older adults and their children was related to the psychological well-being of older Koreans.

Gender differences in the link between excessive drinking and domain-specific cognitive functioning among older adults.

Objective: This study investigated gender differences in the relationship between excessive drinking and two cognitive domains among older adults.

Method: Using data from the Health and Retirement Study, 3,888 females and 2,350 males were analyzed separately. Multivariate regression was used to analyze the association between excessive drinking and fluid intelligence score.