P5494Impact of the gender difference on long-term clinical outcomes in dyslipidemic South Korean AMI patients who underwent PCI with new-generation DES

Background

There are limited comparative data concerning long-term major clinical outcomes between male and female in dyslipidemic AMI patients after PCI with new-generation DES.

Purpose

We thought to investigate the impact of gender difference on the 2-year clinical outcomes.

Methods

Finally, a total of 2403 eligible dyslipidemic AMI patients who underwent PCI with new-generation DES were enrolled and they were separated into two groups; the male group (n=1800) and the female group (n=603). The primary endpoint was major adverse cardiac events (MACE) defined as all-cause death, recurrent myocardial infarction (re-MI), target lesion revascularization (TLR), and target vessel revascularization (TVR). The secondary endpoints were the incidence of the individual components of MACE and target vessel failure (TVF), a composite of death related to the target vessel, re-MI, or clinically driven TVR

Results

Two propensity score-matched (PSM) groups (422 pairs, n=844, C-statistic = 0.850) were generated. In the total study population, the cumulative incidences of MACE, all-cause death, re-MI, and TVF were significantly higher in the female group compared with the male group. However, after propensity score-matched (PSM) analysis, the cumulative incidences of MACE (HR, 0.971; 95% CI, 0.628–1.501; p=0.895), all-cause death (HR, 1.061; 95% CI, 0.536–2.100; p=0.865), re-MI (HR, 1.212; 95% CI, 0.433–2.907; p=0.813), and TVF (HR, 0.764; 95% CI, 0.474–1.229; p=0.267) were similar between the two groups. In addition, the cumulative incidences of cardiac death, TLR, TVR were not significantly different between the two groups (Table 1).

Outcomes Cumulative Events at 2-year (%) Hazard Ratio (95% CI) p value Male Female Log-rank Propensity score matched patients MACE 41 (10.4) 40 (10.3) 0.895 0.971 (0.628–1.501) 0.895 All-cause death 16 (4.0) 17 (4.2) 0.865 1.061 (0.536–2.100) 0.865 Cardiac death 13 (3.3) 9 (2.2) 0.391 0.691 (0.295–1.616) 0.393 Re-MI 8 (2.0) 9 (2.4) 0.813 1.212 (0.433–2.907) 0.813 TLR 7 (1.8) 6 (1.6) 0.781 0.857 (0.298–2.550) 0.781 TVR 16 (4.3) 10 (2.7) 0.236 0.623 (0.283–1.373) 0.241 TVF 39 (10.2) 30 (7.8) 0.265 0.764 (0.474–1.229) 0.267

Conclusion

The gender difference was not apparent in these dyslipidemic South Korean AMI patients who underwent PCI with new-generation DES during 2-year follow-up period.

Pilot Use of Selected Measures from the Patient-Reported Outcomes Measurement Information System Social and Mental Health Domains with Young Adult Cancer Patients During the Transition to Survivorship Care

Social reintegration is an important part of young adult cancer patients' transition to survivorship care. As part of a mixed methods study exploring the social functioning of young adult cancer patients during this transition process, participants (N = 13) completed four selected measures from the Patient-Reported Outcomes Measurement Information System (PROMIS) social and mental health domains within ∼6 months of completion of active treatment and 3 months later. The majority of participants (n = 10) had T-scores within normal limits on all measures. Three participants had T-scores in the mild or moderate impairment range across time points. No significant differences were found between groups at Time 1 and Time 2 on any of the four measures.

Willingness to Use a Nursing Home in Asian Americans

This study explores factors associated with willingness to use a nursing home in Asian Americans. Focus is given to demographic variables (age, gender, ethnicity, marital status, and education), health-related variables (chronic medical condition and self-rated health), immigration-related variables (time in the U.S. and acculturation), and family-related variables (family network and family solidarity). Cross-sectional study. Data were drawn from 2551 participants in the 2015 Asian American Quality of Life Survey (aged 18-98). Participants were asked to indicate whether they would be willing to use a nursing home in the future. An affirmative response indicated a personal willingness to use a nursing home. Approximately 38% of the sample demonstrated willingness to use a nursing home. Higher odds for willingness were observed among those with advanced age, female gender, Korean ethnicity (compared with Chinese), better education, presence of a chronic medical condition, longer years of residence in the U.S., and lower levels of family solidarity. Reflecting the current trend of an increase in racial/ethnic minorities in nursing homes, a substantial proportion of the present sample of Asian Americans demonstrated willingness to use a nursing home. Findings on the factors associated with willingness provide implications for policies and services to respond to the long-term care needs of this emerging population.

Factors Associated With Designation of a Substitute Decision-Maker in Older Asian Americans: The Role of Cultural Factors

The present study examined the prevalence of and factors associated with the designation of a substitute decision-maker (SDM) in a sample of older Asian Americans. Particular emphasis was placed on cultural factors (ethnicity, time in the United States, English proficiency, acculturation, and cultural belief) that might influence on one's attitudes toward death and dying or end-of-life decision-making. Data were drawn from the 499 participants aged 60 years and older using the 2015 Asian American Quality of Life survey. Twenty-two percent of the sample had completed a legal document identifying a SDM. Results of a hierarchical logistic regression indicated that ethnicity, time in the United States, English proficiency, and acculturation were significant predictors. By examining the role of cultural factors in predicting SDM designation, the present study provided implications for culturally tailored strategies to help older Asian Americans plan their end-of-life care.

Factors associated with dental service use of older Korean Americans

OBJECTIVES

Based on Andersen's healthcare utilization model, the present study examined factors associated with dental service use in older Korean Americans. Focus was on predisposing characteristics (age, gender, marital status, education and region), oral health needs (problems with teeth or gums and self-rated oral health) and enabling factors (dental health insurance, length of stay in the United States, acculturation and family network).

METHODS

Using data from surveys with Korean Americans aged 60 or older (N = 2128), a Poisson regression model examined predictors of dental visit in the past 12 months.

FINDINGS

More than 21% of the sample reported having a problem with teeth or gums, and over half rated their oral health as either fair or poor. Approximately 71% lacked dental health insurance. The number of dental visits in the past 12 months averaged 1.40 (SD = 1.74), with about 38% having no dental visits at all. Multivariate analyses showed that higher levels of education, the presence of a problem with teeth or gums, dental health insurance coverage, longer length of stay in the United States, and larger family networks were associated with 1.01-1.35 times higher number of dental visits.

CONCLUSION

The findings not only confirmed the critical role of dental health insurance as a service enabler but also highlighted the importance of considering older ethnic immigrants' oral health and dental care from the perspectives of culture and family.

Hypoxia improves hair inductivity of dermal papilla cells via nuclear NADPH oxidase 4-mediated reactive oxygen species generation'

BACKGROUND

Dermal papilla cells (DPCs) play a key role in hair regeneration and morphogenesis. Therefore, tremendous efforts have been made to promote DPC hair inductivity.

OBJECTIVES

The aim of this study was to investigate the mitogenic and hair inductive effects of hypoxia on DPCs and examine the underlying mechanism of hypoxia-induced stimulation of DPCs.

METHODS

DPCs' hair inductivity was examined under normoxia (20% O₂ ) and hypoxia (2% O₂ ).

RESULTS

Hypoxia significantly increased the proliferation and delayed senescence of DPCs via Akt phosphorylation and downstream pathways. Hypoxia upregulated growth factor secretion of DPCs through the mitogen-activated protein kinase pathway. Hypoxia-preconditioned DPCs induced the telogen-to-anagen transition in C₃ H mice, and also enhanced hair neogenesis in a hair reconstitution assay. Injected green fluorescent protein-labelled DPCs migrated to the outer root sheath of the hair follicle, and hypoxia-preconditioning increased survival and migration of DPCs in vivo. Conditioned medium obtained from hypoxia increased the hair length of mouse vibrissa follicles via upregulation of alkaline phosphatase, vascular endothelial growth factor, and glial cell line-derived neurotrophic factor. We examined the mechanism of this hypoxia-induced stimulation, and found that reactive oxygen species (ROS) play a key role. For example, inhibition of ROS generation by N-acetylcysteine or diphenyleneiodonium treatment attenuated DPCs' hypoxia-induced stimulation, but treatment with ROS donors induced mitogenic effects and anagen transition. NADPH oxidase 4 is highly expressed in the DPC nuclear region, and NOX4 knockout by CRISPR-Cas9 attenuated the hypoxia-induced stimulation of DPCs.

CONCLUSIONS

Our results suggest that DPC culture under hypoxia has great advantages over normoxia, and is a novel solution for producing DPCs for cell therapy. What's already known about this topic? Dermal papilla cells (DPCs) play a key role in hair regeneration and morphogenesis, but they are difficult to isolate and expand for use in cell therapy. Tremendous efforts have been made to increase proliferation of DPCs and promote their hair formation ability. What does this study add? Hypoxia (2% O₂ ) culture of DPCs increases proliferation, delays senescence and enhances hair inductivity of DPCs. Reactive oxygen species play a key role in hypoxia-induced stimulation of DPC. What is the translational message? Preconditioning DPCs under hypoxia improves their hair regenerative potential, and is a novel solution for producing DPCs for cell therapy to treat hair loss.

Healthcare Navigation Self-Sufficiency in Older Korean Immigrants

Using data from surveys with Korean Americans aged 60 years or above (n = 2,150), the level of healthcare navigation self-sufficiency was assessed, and its related factors were explored. The overall status of self-sufficiency was low; for example, over half of the sample needed assistance with reading and filling out medical documents, and nearly half needed someone to interpret during medical visits. Diminished self-sufficiency in healthcare navigation was associated with disadvantaged social status (e.g., advanced age, female gender, and low education), early stages of immigration (short length of stay in the U.S. and low English proficiency), and lack of personal health resources (e.g., poor health condition and lack of health insurance). The findings shed light on older immigrants' challenges in the use of health services in a broad sense and help identify areas of patient burden and avenues for interventions.

Mental Health Service Use and Perceived Unmet Needs for Mental Health Care in Asian Americans

Using data from the Asian American Quality of Life (AAQoL, n = 2609) survey, logistic regression models of mental health service use and perceived unmet needs were estimated with background variables, ethnicity, and mental health status. More than 44% of the participants were categorized as having mental distress (Kessler 6 [K6] ≥ 6) and 6.1% as having serious mental illness (SMI, K6 ≥ 13). About 23% had used services (mental health specialist, general doctor, and/or religious leader) for their emotional concerns during the past year, and about 7% reported that there was a time that they needed mental health care but could not get it. In the multivariate analyses, the presence of mental distress and SMI increased the odds of using any service and having perceived unmet needs. Those who had used services exhibited higher odds of reporting unmet needs, calling concerns about the quality of services and user satisfaction.

Preventive Dental Care Utilization in Asian Americans in Austin, Texas: Does Neighborhood Matter?

Although dental care is an essential component of comprehensive health care, a substantial proportion of the U.S. population lacks access to it. Disparities in dental care are most pronounced in racial/ethnic minority communities. Given the rapid population growth of Asian Americans, as well as the growing attention of neighborhood-level effects on health care use, the present study examines how individual-level variables (i.e., age, gender, marital status, ethnicity, education, place of birth, length of stay in the U.S., dental insurance, and self-rated oral health) and neighborhood-level variables (i.e., poverty level, density of Asian population, dentist availability, and Asian-related resources and services) contribute to predicting the use of preventive dental care in a sample of Asian Americans in Austin, TX. This study adds to the growing literature on the effect of neighborhood-level factors on health care as sources of disparities. Those living in the Census area with higher level of available dentists were more likely to use preventive dental care services. Findings suggest the importance of the location (proximity or accessibility) to dental clinics. In a planning perspective for health care policy, identifying the neighborhood with limited healthcare services could be a priority to diminish the disparity of the access.

Measurement Equivalence of English Versus Native Language Versions of the Kessler 6 (K6) Scale: An Examination in Three Asian American Groups

The use of languages other than English in population-based surveys is necessitated by the linguistic diversities in the United States. However, inclusion of multiple languages in survey data collection raises concerns about whether an instrument administered in different languages functions equivalently across groups. Using the Kessler Psychological Distress Scale 6 (K6), the present study examined differential item functioning (DIF) between surveys conducted either in English or the native language of the groups of Chinese Americans (n = 622), Korean Americans (n = 471), and Vietnamese Americans (n = 513). DIF analyses using a series of multiple indicator multiple cause (MIMIC) models showed that there were substantial differences between English and non-English versions in the endorsement of the K6 items, with patterns that differed by ethnicity. The K₄ (depressed) showed DIF in all three groups: non-English survey users consistently showed a higher degree of endorsement compared to their English using counterparts. It is speculated that its translated expression in Asian languages may carry less associations with illness/disorder than the English word, thereby making it easy to endorse among Asian language survey users. Findings suggest a lack of measurement equivalence between the K6 administered in English and Asian languages and call for caution in cross-linguistic contexts.

Source of Health Information and Unmet Healthcare Needs in Asian Americans

BACKGROUND

Responding to the disparities in accessing and obtaining health information and healthcare among immigrant populations, the present study focused on Asian Americans. Using a sample that reflects Asian Americans' cultural and linguistic diversities, the goal was to explore the typologies of health information source and their predictability to unmet healthcare needs (i.e., the experience of not being able to get needed medical care).

METHODS

Data were drawn from the 2015 Asian American Quality of Life Survey (N = 2,592), conducted using culturally and linguistically sensitive approaches. Latent class analysis on nine sources of health information across interpersonal networks (family members, close friends, acquaintances, and health professionals) and Internet-based communication technologies (mobile apps, email listservs, social networking sites, online communities, and health websites) identified six classes: 'resource-heavy,' 'human-oriented,' 'expertise-focused,' 'family-dominant,' 'resource-scarce,' and 'health professional-dominant.'

RESULTS

Compared to the resource-heavy group, the odds of having an unmet healthcare need were 2.94 times greater in the family-dominant group and 4.13 times greater in the resource-scarce group.

DISCUSSION

Findings provide implications for interventions with respect to subgroups to be prioritized and areas to be targeted in efforts to promote access and acquisition of health information and health services in Asian Americans.

Associations of a social network typology with physical and mental health risks among older adults in South Korea

OBJECTIVES

The objectives of this study were to (1) develop an empirical typology of social networks in older Koreans; and (2) examine its effect on physical and mental health.

METHOD

A sample of 6900 community-dwelling older adults in South Korea was drawn from the 2014 Korean National Elderly Survey. Latent profile analysis (LPA) was conducted to derive social network types using eight common social network characteristics (marital status, living arrangement, the number and frequency of contact with close family/relatives, the number and frequency of contact with close friends, frequency of participation in social activities, and frequency of having visitors at home). The identified typologies were then regressed on self-rated health and depressive symptoms to explore the health risks posed by the group membership.

RESULTS

The LPA identified a model with five types of social network as being most optimal (BIC = 153,848.34, entropy = .90). The groups were named diverse/family (enriched networks with more engagement with family), diverse/friend (enriched networks with more engagement with friends), friend-focused (high engagement with friends), distant (structurally disengaged), and restricted (structurally engaged but disengaged in family/friends networks). A series of regression analyses showed that membership in the restricted type was associated with more health and mental health risks than all types of social networks except the distant type.

CONCLUSION

Findings demonstrate the importance of family and friends as a source of social network and call attention to not only structural but also non-structural aspects of social isolation. Findings and implications are discussed in cultural contexts.

Older Adults’ Internet Use for Health Information: Digital Divide by Race/Ethnicity and Socioeconomic Status

Building upon literature suggesting low Internet use among racial/ethnic minorities and socioeconomically disadvantaged groups, this study examined how race/ethnicity and socioeconomic status (SES) influence the Internet use for health information, addressing both independent and interactive effects. Using data from 17,704 older adults in the California Health Interview Survey, logistic regression models were estimated with race/ethnicity (Whites, African Americans, Latinos, and Asians), SES index, and the interaction between race/ethnicity and SES index. Overall, approximately 40% of participants were Internet-users for health information. Direct effects of race/ethnicity and SES—and their interactions—were all found to be significant. Minority status combined with the lowest levels of SES substantially reduced the odds of using Internet for health information. Findings suggest the combination of racial/ethnic minority status and low SES as a source of digital divide, and provide implications for Internet technology training for the target population.

Asian Americans' concerns and plans about Alzheimer's disease: The role of exposure, literacy and cultural beliefs

Responding to the increase of the Asian American population and the growing imperative to address issues on Alzheimer's disease (AD) in diverse populations, this study examined Asian Americans' concerns about AD (both concerns about one's own development of AD and about becoming an AD caregiver) and plans for AD. Focus was given on exploring the role of AD exposure, AD literacy and cultural beliefs about AD in predicting AD-related concerns and plans. Using data from 2,609 participants in the 2015 Asian American Quality of Life survey (aged 18-98), logistic regression models of three outcome measures (concerns about one's own development of AD, concerns about becoming an AD caregiver and plans about AD) were estimated. AD exposure and literacy (perceived knowledge and awareness of services) were common predictors of all three outcomes. Beliefs that associate AD with a normal part of ageing and a matter of fate increased the odds of having AD concerns. The odds of having AD plans were found to be higher among those with such concerns. Findings not only identified the factors associated with the concerns and plans about AD but also informed ways to develop targeted AD interventions for Asian Americans.

The role of social capital in the relationship between physical constraint and mental distress in older adults: a latent interaction model

OBJECTIVE

Building upon the widely known link between physical and mental health, the present study explored the buffering effects of social capital (indicated by social cohesion, social ties, and safety) in the relationship between physical constraint (indicated by chronic conditions and functional disability) and mental distress (indicated by symptoms of depression and anxiety).

METHOD

Using data from 2,264 community-dwelling older adults in the National Social Life, Health, and Aging Project (NSHAP) Wave 2 (M_age = 74.51, SD = 6.67), a latent interaction model was tested. The model of mental distress, including both the main effect of physical constraint and social capital and their latent interaction, presented an excellent fit.

RESULTS

The latent constructs of physical constraint (β = .54, p < .001) and social capital (β = -.11, p < .01) not only had a direct effect on mental distress, but their interaction was also significant (β = -.26, p < .001). Subgroup analysis showed that the group with a low level of social capital had a heightened vulnerability to mental distress when faced with physical constraint, whereas the group with a high level of social capital demonstrated resilience.

CONCLUSION

Findings call attention to ways to enhance older individuals' social capital in efforts to promote their health and well-being.

The risk typology of healthcare access and its association with unmet healthcare needs in Asian Americans

Using data from the 2015 Asian American Quality of Life Survey (N = 2,609), latent profile analysis was conducted on general (health insurance, usual place for care and income) and immigrant-specific (nativity, length of stay in the U.S., English proficiency and acculturation) risk factors of healthcare access. Latent profile analysis identified a three-cluster model (low-risk, moderate-risk and high-risk groups). Compared with the low-risk group, the odds of having an unmet healthcare need was 1.52 times greater in the moderate-risk group and 2.24 times greater in the high-risk group. Challenging the myth of model minority, the present sample of Asian Americans demonstrates its vulnerability in access to healthcare. Findings also show the heterogeneity in healthcare access risk profiles.

Willingness to use mental health counseling and antidepressants in older Korean Americans: the role of beliefs and stigma about depression

OBJECTIVES

Despite a high prevalence of mental health problems, racial/ethnic minorities are often reluctant to seek mental health services. Their reluctance may be shaped by cultural beliefs and stigma about mental health. The present study examined how beliefs and stigma about depression (e.g. disbelief in depression as a health-related condition, perception of depression as a normal part of aging, and/or depression as a sign of personal weakness/family shame) pose barriers to older Korean Americans' willingness to use mental health counseling and antidepressants.

METHOD

Data were drawn from surveys with 420 Korean American older adults (M_age= 71.6, SD = 7.6) living in the New York City metropolitan area in 2010. Using a separate logistic regression model, the role of beliefs and stigma about depression in predicting participants' willingness to receive mental health counseling and to take antidepressants was tested. Based on Andersen's behavioral health service use model, the analysis was conducted in consideration of predisposing characteristics (age, gender, marital status, education, and acculturation), mental health needs (anxiety, depressive symptoms, and self-rated mental health), and enabling/hindering factors (beliefs and stigma).

RESULTS

Similar proportions of the sample (69-70%) indicated their willingness to use mental health counseling or antidepressants. Willingness was more likely among participants who had beliefs about depression as a health-related concern (OR = 1.94, 95% CI = 1.15-3.27 for mental health counseling; OR = 4.47, 95% CI = 2.59-7.70 for antidepressants) and less likely among those who associated depression with family shame (OR = .55, 95% CI = 0.33-0.91 for mental health counseling; OR = .56, 95% CI = 0.33-0.95 for antidepressants).

CONCLUSION

In addressing mental health problems and promoting the use of mental health services, cultural beliefs and stigma shared within an ethnic community should be considered. Given that disbelief in the medical model of depression and family shame reduced willingness to use mental health counseling and antidepressants, promoting mental health literacy for older immigrants could be beneficial.