Publications by authors named "Sakurako S Okuzono"

Objectives: We examined long-term trajectories of depressive symptoms among older adults following exposure to the 2011 Great East Japan Earthquake and Tsunami. We further characterized the pre- and post-disaster social relationship factors that predicted membership in each trajectory group.

Method: Data from four time points (including pre-disaster data) were used to analyze the depression trajectories of 2,033 survivors through a group-based trajectory model.

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Article Synopsis
  • This study investigated how income inequality in communities affects mental health after disasters, specifically looking at older adults following the 2011 Great East Japan Earthquake.
  • The researchers used a cohort of individuals over 65, assessing their mental health through surveys and measuring community income inequality with the Gini index before and after the disaster.
  • Results revealed that higher pre-disaster income inequality correlated with increased post-traumatic stress symptoms, suggesting potential links between inequality, mental health, and changes in social capital post-disaster that need further exploration for effective policy recommendations.
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Does higher perceived neighborhood social cohesion in adolescence lead to better health and well-being 10-12 years later? We evaluated this question using data from a large, prospective, and nationally representative sample of US adolescents (Add Health; N = 10,963), and an outcome-wide approach. Across 38 outcomes, perceived neighborhood social cohesion was associated with some: mental health outcomes (i.e.

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Purpose: Though research indicates that certain aspects of adverse neighborhood conditions may influence weight development in childhood and adolescence, it is unknown if the Child Opportunity Index (COI), a composite measure of 29 indicators of neighborhood conditions, is associated with weight outcomes in adolescence. We hypothesized that lower COI would be associated with higher overweight and obesity in cross-sectional and longitudinal modeling in a national sample of 9 year olds and 10 year olds and that this association would be different by sex.

Methods: Using data from the Adolescent Brain Cognitive Development study (n = 11,857), we examined the cross-sectional association between COI quintile and overweight and obesity in 9 year olds and 10 year olds.

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Background: Several intergovernmental organizations, including the World Health Organization and United Nations, are urging countries to use well-being indicators for policymaking. This trend, coupled with increasing recognition that positive affect is beneficial for health/well-being, opens new avenues for intervening on positive affect to improve outcomes. However, it remains unclear if positive affect in adolescence shapes health/well-being in adulthood.

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Purpose: There is widespread recognition of the importance and complexity of measuring neighborhood contexts within research on child psychopathology. In this study, we assessed the cross-sectional associations between two measures of neighborhood quality and internalizing and externalizing behaviors in preadolescence.

Methods: Drawing on baseline data from the Adolescent Brain Cognitive Development Study (n = 10,577 preadolescents), we examined two multi-component assessments of neighborhood quality in relation to children's internalizing and externalizing symptoms: the Area Deprivation Index (ADI), which measures socioeconomic adversity, and the Child Opportunity Index 2.

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Traumatic experiences from disasters have enduring effects on health, both directly and indirectly by influencing health behaviours. Among potential pathways, the impact of disaster-related trauma on dietary patterns has been understudied. This study investigated the relationship between disaster-related trauma and dietary inflammatory index (DII), and how these relationships differed by gender and whether they prepare meal by themselves or not among older survivors of the 2011 Great East Japan Earthquake and Tsunami ( 1375).

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Objectives: Associations of stress-related coping strategies with lifespan among the general population are understudied. Coping strategies are characterized as being either adaptive or maladaptive, but it is unknown the degree to which variability in tailoring their implementation to different contexts may influence lifespan.

Method: Women (N = 54,353; M= 47) completed a validated coping inventory and reported covariate information in 2001.

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Objectives: The sense of coherence refers to effectively using available resources to manage stress and promote overall health. Previous studies have linked it to various health outcomes; however, evidence regarding its association with the risk of incident dementia is limited. Hence, this study aimed to fill this research gap using data from a large-scale population survey.

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An understanding of child psychopathology and resilience requires attention to the nested and interconnected systems and contexts that shape children's experiences and health outcomes. In this study, we draw on data from the National Survey of Children's Health, 2016 to 2021 ( = 182,375 children, ages 3- to 17 years) to examine associations between community social capital and neighborhood resources and children's internalizing and externalizing problems, and whether these associations were moderated by experiences of racial discrimination. Study outcomes were caregiver-report of current internalizing and externalizing problems.

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Identifying subpopulations that are particularly vulnerable to long-term adverse health consequences of disaster-related trauma is needed. We examined whether adverse childhood experiences (ACEs) potentiate the association between disaster-related trauma and subsequent cognitive disability among older adult disaster survivors. Data were from a prospective cohort study of older adults who survived the 2011 Great East Japan Earthquake.

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Objective: Evidence suggests that greater social integration is related to lower mortality rates. However, studies among African-Americans are limited. We examined whether higher social integration was associated with lower mortality in 5306 African-Americans from the Jackson Heart Study, who completed the Berkman-Syme Social Network Index in 2000-2004 and were followed until 2018.

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Study Objectives: We sought to examine the bidirectional associations between post-traumatic stress symptoms (PTSS) and sleep quality in a sample of older disaster survivors.

Methods: We used 4 waves (2010, 2013, 2016, and 2020) of the Iwanuma Study, which included pre-disaster information and 9 years of follow-up data among older survivors of the 2011 Great East Japan Earthquake and Tsunami. Poisson regression analysis was used to examine the bidirectional associations between sleep problems and PTSS.

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Background: Parent-child separation has been associated with negative mental health across childhood and adulthood, yet little is known about the long-term impacts for cardiovascular health. This systematic review synthesized and evaluated the quality of the literature examining the association between exposures to parent-child separation and cardiometabolic outcomes in adulthood.

Methods: Following a registered protocol, online databases (Pubmed, PsycInfo, and Web of Science) were searched for relevant studies.

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Article Synopsis
  • The study analyzed the relationship between optimism and lifespan among older Japanese adults using data from a nationwide cohort involving over 10,000 participants aged 65 and older.
  • Researchers measured optimism through a validated questionnaire and tracked mortality over a 7-year period, but found no significant link between optimism levels and lifespan after accounting for other health and demographic factors.
  • The results suggest that optimism may not have the same positive impact on longevity for Japanese older adults as seen in previous studies from Western populations, indicating cultural differences in this relationship.
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Although prior research suggests that residential instability during adolescence can have long-term impacts on health and wellbeing, few studies have identified a robust comparison group and considered a broad set of outcomes. To address these knowledge gaps, we examined the associations between residential instability during adolescence and a wide range of adult health and wellbeing outcomes using an outcome-wide design in the National Longitudinal Study of Adolescent to Adult Health. We defined residential instability as two or more moves between Waves I and II (ages 13-18 years).

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This systematic review synthesizes research published from January 2010-July 2022 on the social determinants of ideal cardiovascular health (CVH) carried out around the world and compares trends in high-income countries (HICs) to those in low- and middle-income countries (LMICs). 41 studies met inclusion criteria (n = 28 HICs, n = 13 LMICs). Most were from the United States (n = 22) and cross-sectional (n = 33), and nearly all evaluated associations among adults.

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Background: Little research has examined associations between disaster-related home loss and multiple domains of health and well-being, with extended long-term follow-up and comprehensive adjustment for pre-disaster characteristics of survivors.

Objectives: We examined the longitudinal associations between disaster-induced home loss and 34 indicators of health and well-being, assessed post-disaster.

Methods: We used data from a preexisting cohort study of Japanese older adults in an area directly impacted by the 2011 Japan Earthquake ( and , depending on the outcomes).

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Objectives: Growing evidence supports optimism as a health asset, yet how optimism influences well-being and health remains uncertain. We evaluated 1 potential pathway-the association of optimism with daily stress processes-and tested 2 hypotheses. The stressor exposure hypothesis posits that optimism would preserve emotional well-being by limiting exposure to daily stressors.

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Background: Having a purpose in life has been linked to improved health and wellbeing; however, it remains unknown whether having ""-a related but broader concept in Japan-is also beneficial for various physical and psychosocial outcomes.

Methods: Using data from a nationwide longitudinal study of Japanese older adults aged ≥65 years, we examined the associations between having in 2013 and a wide range of subsequent outcomes assessed in 2016 across two databases (n = 6,441 and n = 8,041), including dimensions of physical health, health behavior, psychological distress, social wellbeing, subjective wellbeing, and pro-social/altruistic behaviors. We adjusted for sociodemographic characteristics and the outcome values (whenever data were available) in the prior wave (2010).

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Article Synopsis
  • * Using data from over 7,200 older individuals in Japan, researchers explored various effects of low adult SES on the relationship between ACEs and depressive symptoms.
  • * The findings show that while ACEs strongly predict depression in later life, higher adult SES can help lessen the impact of these early hardships, highlighting the importance of socioeconomic factors in mental health outcomes.
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Optimism is associated with reduced mortality risk among Whites, but evidence for this relationship is limited among African-Americans, whose life expectancy is shorter than Whites. This study examined the association between optimism and mortality rate in African-Americans. Data were from African-American women (n = 2652) and men (n = 1444) in the United States from the Jackson Heart Study.

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Background: Optimism is linked with greater longevity in both White and African American populations. Optimism may enhance longevity by slowing cellular aging, for which leukocyte telomere shortening is a biomarker. However, limited studies have examined the association of optimism with leukocyte telomere length among African Americans.

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