Childhood Socioeconomic Status and Cognitive Function in Later Life: Differences between Whites and Blacks

Jiyoung Lyu 한림대학교 고령사회연구소 2017 한림고령사회연구 Vol.5 No.1

This study was aimed to examine the race/ethnicity differences in the longitudinal relationship between childhood socioeconomic status (SES) and cognitive function among U.S. older adults longitudinally. Using a nationally representative longitudinal sample from the 1998 to 2010 Health and Retirement Study (HRS), a total of 7,710 non-Hispanic whites and 1,137 non-Hispanic blacks were analyzed separately. Cognitive status and change in cognition were examined over 12 years using growth curve models. The results showed that the association between individual childhood SES factor and cognitive function differed by race/ethnicity. The effects of childhood SES factors on cognitive function were mostly mediated among blacks when adult SES factors were controlled. The association between cumulative SES and cognitive function was significantly different by race/ethnicity. Findings show that individual childhood SES indicators have different impacts on cognitive function longitudinally by each race/ethnicity, and there still remains a lot of heterogeneity.

Views of Death in the New Normal after COVID-19 Pandemic

Jiyoung Lyu,Joon-Shik Park,Keung-Ja Hong,Dong-Hyun Kim,Hye-Mi Kim,Yeon Ok Lim,Jae Eun Seok,Jin-Young Jeong 한국콘텐츠학회 2022 한국콘텐츠학회 ICCC 논문집 Vol.2022 No.12

AI Services to Prevent Solitary Death in South Korea

Jiyoung Lyu,Joon-Shik Park,Hye-Mi Kim,Jin-Young Jeong,Young Bum Kim,Keung-Ja Hong,Byoung-Jun Park 한국콘텐츠학회 2023 한국콘텐츠학회 ICCC 논문집 Vol.2023 No.12

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

Jiyoung Lyu,김해영 대한신경정신의학회 2016 PSYCHIATRY INVESTIGATION Vol.13 No.5

ObjectiveaaThis study investigated gender-specific incidence and predictors of cognitive impairment among community-dwelling older adults in South Korea. MethodsaaUsing 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. ResultsaaIncidence 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. ConclusionaaFindings 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.

COVID-19’s Impact on Korean Adults’ Daily Life Conditions

Jiyoung Lyu,Joon-Shik Park,Young Bum Kim,Clara Tammy Kim,Keung-Ja Hong,Hye-Mi Kim,Jin-Young Jeong 한국콘텐츠학회 2021 한국콘텐츠학회 ICCC 논문집 Vol.2021 No.12

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

Jiyoung Lyu,Hae-Young Kim 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.11

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.

누가 북한 관련 가짜뉴스에 취약한가?

유지영 ( Lyu Jiyoung ),윤광일 ( Yoon Kwang-il ) 국방대학교 안보문제연구소 2021 국방연구 Vol.64 No.4

이 연구는 대표성 있는 표본 조사 자료를 활용한 통계 분석을 통해서, 북한 관련 가짜뉴스에 취약하게 할 가능성이 큰 보수 정치이념 성향과 그 심리적 기반인 이데올로기 성향의 영향을 추정하고자 했다. 첫째, 예측과는 달리 정치이념 성향에 따른 북한 관련 가짜뉴스 식별도의 차이는 나타나지 않았다. 둘째, 이데올로기 성향 중에서는 우익권위주의와 사회지배지향이 강할수록 가짜뉴스 식별수준이 떨어졌다. 그러나 체제정당화 동기의 효과는 드러나지 않있다. 셋째, 여성이 남성보다 가짜뉴스에 취약한 것으로 드러났으며, 연령과 학력이 높을수록 그리고 대북포용정책 계승 정당으로 알려진 더불어민주당 정당 지지는 가짜뉴스 식별수준을 높이는 것으로 나타났다. 대북 및 통일, 안보 정책 선호가 한국 특유의 이념 차원을 구성하고 있는 현실에서 서구와는 달리 정치이념 성향에 따라 가짜뉴스에 대한 취약함이 다르지 않게 나타난 것은 정치이념에 따른 극화가 일상화되고 현실에서도 참 정보와 객관적 증거에 입각한 진영 간 소통과 토론 그리고 합의가 가능할 것이라는 기대를 밝게 한다. The present study attempts to identify motivational factors that lead individuals vulnerable to fake news on North Korea, using a nationally representative survey data. The study found that as opposed to previous studies using Western samples, self-placed, symbolic ideology did not affect fake news discernment. Right wing authoritarianism (RWA) and social dominance orientation (SDO) seemed to hamper the ability to discern the fake news while system justification did not. The study observed that women were more vulnerable to the fake news. And the younger or the less educated, the more vulnerable to the fake news. Supporting the ruling liberal party, which has been recognized as the party of Sunshine policy, seemed to increase the discernment. These results suggest that current symbolic ideological polarization does not lead to difference in the fake news discernment. That would facilitate informed discussion based on facts among political opponents.

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

Choi, Eunsil,Lyu, Jiyoung,Park, Jinyoung,Kim, Hae-Young Korean Academy of Periodontology 2014 Journal of Periodontal & Implant Science Vol.44 No.6

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. Results: Most of the published articles considered (64.4%) used statistical methods. Since 2011, the percentage of JPIS articles using statistics has increased. On the basis of multiple counting, we found that the percentage of studies in JPIS using parametric methods was 61.1%. Further, complex statistical methods were applied in only 6 of the published studies (5.0%), and nonparametric statistical methods were applied in 77 of the published studies (38.9% of a total of 198 studies considered). Conclusions: We found an increasing trend towards the application of statistical methods and nonparametric methods in recent periodontal studies and thus, concluded that increased use of complex statistical methodology might be preferred by the researchers in the fields of study covered by JPIS.

뉴스 빅데이터를 활용한 한국의 자살현상 분석

이정은(Jungeun Lee),유지영(Jiyoung Lyu) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

본 연구는 우리 사회의 자살현상을 알아보고, 자살예방대책의 사회현상 반영여부 및 적절성에 대해 알아보고자 뉴스 빅데이터를 활용한 네트워크 분석을 실시하였다. 이를 위해 2000년부터 2018년까지 8개 중앙지에서 자살을 키워드로 9,142개의 뉴스기사 제목을 수집하였고, 명사를 중심으로 단어를 추출하여 데이터 정제를 거쳐 네트워크 분석을 실시하였다. 총 기간은 1, 2차 자살예방대책을 기준으로 4개의 구간으로 나누었고, 상위 50개의 빈출 주제어와 CONCOR분석을 통해 각 구간의 자살현상의 특징을 파악하였다. 분석결과 1구간(2000~2003년)은 6개의 군집(군, 인터넷 환경, 경제적 문제, 비관, 학교, 비리), 2구간(2004~2008)은 8개의 군집(사회고위층, 학교, 경제적 문제, 자살시도, 가정문제, 사회적 문제, 군, 책임), 3구간(2009~2013)은 6개 군집(학교, 가정문제, 자살시도, 직업별, 군, 조사), 4구간(2014~2018)은 8개 군집(군, 자살보험금, 가정문제, 자살시도, 직업별, 업무스트레스, 연예인, 비리)이 분석되었다. 이와 같은 네트워크 분석을 통해 우리 사회의 자살현상의 특징을 알아보았으며, 이러한 연구결과를 토대로 2차에 걸쳐 실시된 자살예방대책의 적절성 여부를 논의하였다. Using news big data analysis, this study was aimed to examine the suicide phenomena in Korean society, and to evaluate whether suicide prevention policies reflect social phenomena appropriately. For this purpose, 9,142 news titles with suicide as the keyword were collected from eight central newspapers between 2000 to 2018. Nouns were extracted, and data was refined for network analysis. The total period was divided into 4 periods based on the 1st and 2nd suicide prevention policies, and the characteristics of suicide phenomena in each period were identified through the top 50 frequent main words and the clusters. As a result, period 1 (2000~2003) with 6 clusters (military, internet environment, economic problems, pessimism, school, corruption), period 2 (2004~2008) with 8 clusters (high social class, school, economic problems, suicide attempts, family issues, social problems, military, responsibilities), period 3 (2009~2013) with 6 clusters (school, family issues, suicide attempts, occupation, military, investigation), and period 4 (2014~2018) with 8 clusters (military, suicide insurance money, family issues, suicide attempts, occupation, job stress, celebrity, corruption) were identified. Study results suggested the characteristics of suicide phenomena in our society. Further, the appropriateness of the implementation of suicide prevention policies was discussed.

청소년기 아버지와 사별이 성장과정과 성인기 삶에 미치는 영향 : van-Manen의 체험연구방법론을 중심으로

김경희(Kyunghee Kim),유지영(Jiyoung Lyu),임선영(Sunyoung Im) 한국질적탐구학회 2021 질적탐구 Vol.7 No.4

청소년기에 경험하는 아버지의 죽음은 청소년기 성장과정은 물론이고 성인기의 삶에도 영향을 미칠 수 있다. 그러므로 청소년기에 경험한 아버지의 죽음을 청소년기와 성인기를 포함하여 삶의 전체 과정에서 조망할 필요가 있다. 이에 이번 연구는 청소년기에 아버지와 사별한 성인의 경험에 드러난 아버지 죽음의 의미와 본질을 규명하고자 했다. 이를 위해 청소년기에 아버지와 사별한 성인 9명을 대상으로 일대일 심층면담을 실시하여 자료를 수집하였다. 수집된 연구자료는 밴 매넌의 체험연구방법으로 접근하여 분석한 결과, 청소년기에 아버지의 죽음을 겪은 성인의 경험은 247개의 개별주제, 45개의 드러난 주제, 20개의 본질적 주제로 나타났다. 이렇게 도출된 경험을 밴 매넌이 실존적 탐구의 길잡이로 제시했던 4개의 근본적 실존체(시간성, 몸성, 관계성, 공간성) 차원에서 재배열하였고, 연구결과를 통해 개별적이면서 공통적인 아버지 사별 경험의 의미와 본질을 발견할 수 있었다. 이번 연구결과에 근거하여 아버지의 죽음으로 인한 어른아이 현상, 무죄한 죄인이라는 인식과 스스로 떠맡은 과도한 책임, 침묵의 배려 등에 대해 논의하였다. Experiencing father’s death in adolescence may have an impact on not only growing process but also the life as an adult. Therefore, it would be meaningful to look into the impact of father’s death in adolescence across the entire life cycle from adolescence to adulthood. The purpose of this study was to investigate the meaning and essence of father’s death which were revealed through experience of as an adult whose father passed away during his/her adolescence. Data were collected from in-depth interviews with nine participants, experiencing father’s death during adolescence. The data were analyzed based on van-Manen′s method for researching lived experience, and 247 individual themes, 45 revealed themes, and 20 essential themes were drawn. The findings were rearranged into four fundamental existentials of lived body, lived space, lived time, and lived human relation. The meaning and essence that was personal and common at the same time were revealed from each participant’s experience. As key findings, it was discussed on being adultized children, recognizing them as innocent sinners and excessive responsibility, and consideration of silence.