Association of Health Risk Behaviors with Mental Health among Elderly Koreans

The predictive relationship between factors related to fear of falling and mortality among community-dwelling older adults in Korea: analysis of the Korean longitudinal study of aging from 2006 to 2014

OBJECTIVES

This study was conducted to identify the predictive relationship between factors related to fear of falling (FOF) and mortality among community-dwelling older adults in Korea.

METHOD

Data were obtained from the Korean Longitudinal Study of Aging (KLoSA). Hierarchical Cox proportional hazards regression analyses were conducted to identify factors related to FOF and correlations of these factors with mortality.

RESULTS

During the eight-year follow-up period, 964 participants (23.5%) died. Death was more likely to occur in males (hazard ratio [HR], 2.55; 95% confidence interval [95% CI], 2.17-3.00), those 75 years old or older (HR, 2.76; 95% CI, 2.40-3.17), those without education (HR, 1.27; 95% CI, 1.05-1.52), and those living without a spouse (HR, 1.30; 95% CI, 1.11-1.51). Those afraid of falling (HR, 1.41; 95% CI, 1.17-1.70), limiting their activities due to FOF (HR, 1.40; 95% CI, 1.21-1.62), showing symptoms of depression (HR, 1.34; 95% CI, 1.16-1.54), and having low life satisfaction (HR, 1.34; 95% CI, 1.13-1.59) were also more likely to experience decreased lifespans.

CONCLUSION

These results suggest that early management and prevention of factors related to FOF should be an effective approach to reducing mortality in older adults.

Factors related to quality of life among middle-aged and older korean adults in 2006 and 2014: A nationally representative study

Factors related to quality of life (QoL) were investigated using data from middle-aged and older Korean respondents to the 2006 and 2014 Korean Longitudinal Study of Ageing. Respondents' QoL score in 2014 (6.03 ± 1.69) was lower than in 2006 (6.20 ± 2.12). All socio-demographic and health-related variables seemed to influence QoL in 2006 (R² = 0.238) and 2014 (R² = 0.234). Four factors significantly associated with QoL in both years were health, household income, depression, and regular exercise. Rural and mid-sized city dwellers were more likely to have a better QoL than residents of metropolitan areas; residential area had a greater influence on QoL in 2014.

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.

METHODS

The study sample was drawn from a nationally representative data set, the 2012 Korean Longitudinal Study of Ageing, and the final sample consisted of 2,167 females and 1,664 males aged 65 and over. Self-reported sensory impairments were categorized into four groups: no sensory impairment (reference), vision impairment only, hearing impairment only, and dual sensory impairment. Depression and cognitive impairment were used as dependent variables in separate analyses.

RESULTS

Adjusted for confounding variables, results from a multivariate analysis showed that vision impairment was significantly associated with depression only among women. Moreover, hearing impairment was significantly associated with cognitive impairment for women, but not for men. Having dual sensory impairment was associated with depression only among men, while having dual sensory impairment was associated with cognitive impairment only among women.

CONCLUSION

These findings suggest that the associations between sensory impairments and geriatric mental health outcomes vary according to gender. Therefore, gender-specific strategies in healthcare policies are needed.

Demographics and Health Profiles of Depressive Symptoms in Korean Older Adults

This study examined the demographics and health characteristics of depressive symptoms of Korean older adults. Data were from the 2014 survey of the Korean Longitudinal Study of Aging (KLoSA). Hierarchical logistic regression was conducted to identify risk factors of depressive symptoms. Model 2 including socio-demographics and health characteristics explained 19.2% of depressive symptoms. Significant risk factors of depressive symptoms were men, age of 53-60 years, mid-sized city and rural area residents, less than high-school education, adults without spouse, 1st (lowest) quintile of annual household income, body shape as underweight, ex-smokers, non-drinkers, no regular exercise, perceived health status as poor, limited activities of daily living, and the number of comorbidities. Interventions to reduce depressive symptoms in these populations should include strategies to change some of these modifiable risk factors.

Mental health literacy as a mediator in use of mental health services among older korean adults

BACKGROUND

Existing literature suggests that mental health literacy is positively associated with mental health services utilization. Despite an aging population that faces significant mental health concerns in Korea, the role of mental health literacy on mental health services utilization is not known among older adults in Korea. This study aimed to (1) identify whether mental health literacy mediates the association between population characteristics and mental health services utilization and (2) identify an optimal path model for mental health services utilization among Korean older adults.

METHODS

Using a cross-sectional survey with a quota sampling strategy, we collected and analyzed responses from 596 community-dwelling individuals ages 65 years and older. We used structural equation modeling (SEM) to estimate the effect of mental health literacy as a mediator.

RESULTS

When controlling for other relevant covariates in the optimal path model, mental health literacy mediated the relationships between three socio-demographic factors (education, general literacy, and health status) and mental health services utilization. The model fit index shows that the SEM fits very well (CFI = 0.92, NFI = 0.90, RMSEA = 0.07).

CONCLUSIONS

Efforts to improve mental health literacy through community-based education programs may need to particularly target Korean older adults with the relevant socio-demographic characteristics to enhance their utilization of appropriate mental health services.

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. Generalized Estimating Equations (GEE) was conducted to examine the predictors of cognitive impairment at 6-year follow up.

RESULTS

Incidence of cognitive impairment at 2012 was significantly higher for women (30.5%) than men (26.1%). GEE result showed that depression was significantly associated with cognitive impairment for both genders (female: OR=2.26, 95% CI=1.63-3.12; male: OR=3.26, 95% CI=2.19-4.83). Having IADL limitations (OR=1.15, 95% CI=1.03-1.28), high blood pressure (OR=1.72, 95% CI=1.27-2.34), poor hearing (OR=1.94, 95% CI=1.29-2.92), regular exercise (OR=0.67, 95% CI=0.45-0.99), and normal weight (OR=1.39, 95% CI=1.03-1.86) were significant predictors of cognitive impairment only among women. In contrast, age (OR=1.04, 95% CI=1.01-1.07) and ADL limitations (OR=1.48, 95% CI=1.21-1.82) were significant predictors of cognitive impairment at follow-up only among men.

CONCLUSION

Findings of this study show gender-specific predictors of cognitive impairment among older Koreans. This study can provide information for clinicians and policy makers to develop different intervention strategies considering gender differences in the progress of cognitive impairment.