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  1. Abstract

    This study aimed to examine the differences in perceived disaster preparedness between Asian Americans and other major races in the USA, namely, Whites, African Americans and Native Americans, and how information-seeking behaviours and self-efficacy (i.e. perceived ability in conducting preparedness behaviours) mediated these racial differences. Data used were from the 2017 National Household Survey conducted by US Federal Emergency Management Agency and included 4,493 respondents. Multiple mediation analysis with percentile and bias-corrected bootstrapping was performed. Results showed that the perceived preparedness level of Asian Americans was lower than that of Whites and Native Americans. Asian Americans’ lower level of self-efficacy explained their disadvantages in perceived disaster preparedness compared with Whites, African Americans and Native Americans. The disadvantages of Asian Americans relative to Native Americans were also attributed to fewer information-seeking behaviours. Based on these findings, disaster-related social work services and intervention strategies can be developed to improve the preparedness mechanisms within the Asian American community and reduce racial disparities in disaster planning.

     
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  2. Abstract

    Timely communication of warnings is essential to protection of lives and properties during tornado outbreaks. Both official and personal channels of communication prove to have considerable impact on the overall outcome. In this study, an agent-based model is developed to simulate warning’s reception–dissemination process in which a person is exposed to, receives, and sends information while interacting with others. The model is applied to an EF5 tornado (EF indicates enhanced Fujita scale) that struck Moore, Oklahoma, in 2013. The parameters are calibrated using publicly available data or a poststorm telephone survey or were derived from literature reviews, expert judgement, and sensitivity analysis. The result shows a reasonable agreement between modeled and observed reception rates for older and younger adults and for different channels, with errors of less than 20 percentage points. Similar agreement is also seen for the average numbers of warning sources. The subsequent simulation indicates that, in the absence of tornado sirens, the overall reception rates for younger and older adults would drop from the baseline by 17 and 6 percentage points, respectively. Concurrently, there is a large decline in the number of warning sources. When a persons’ social network is enlarged, the reception rate for older adults improves from 77% to 80%, whereas for younger adults it stays unchanged. The impact of increased connectivity is more pronounced when people are not watching television or a tornado siren is not available.

    Significance Statement

    Every year, tornadoes cause significant property damage and numerous casualties in the United States. This study aims to understand how tornado warnings reach the at-risk public through various communication channels. Using the agent-based model and simulation, we are able to reconstruct the dynamic patterns of warning’s reception–dissemination process for older and younger adults within a historical EF5 tornado. Further analysis confirms the importance of tornado sirens in not only alerting more residents about the dangerous weather condition but also prompting protective actions. In the meantime, an increase in social connectivity among residents would compensate for the lack of exposure to television and tornado siren. Future work should investigate the robustness of this model and its parameters when applied to other tornado outbreaks.

     
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  3. Abstract Objective: This study investigated how the proximity of disaster experience was associated with financial preparedness for emergencies. Methods: The data used were from the 2018 National Household Survey, which was administered by the Federal Emergency Management Agency. The working sample included 4779 respondents. Results: Logistic Regression showed that the likelihood of setting aside emergency funds tended to be the highest between 2-5 years after experiencing a disaster, which declined slightly but persisted even after 16 years. Recent disaster experience within 1 year did not show a significant impact, indicating a period of substantial needs. However, the proximity of disaster experience did not significantly affect the amount of money set aside. Conclusion: It is suspected that increased risk perception related to previous experiences of disasters is more relevant to the likelihood of preparing financially; whereas other capacity-related factors such as income and having a disability have more effect on the amount of money set aside. 
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  4. Guided by influential theories of disaster research and gerontology, this study examines health resilience associated with tornadoes, particularly focusing on how individuals' tornado-associated stress, financial losses, and family members' well-being affected posttraumatic distress (PTD), posttraumatic growth (PTG), and self-reported changes in health among adults. To reach this goal, this study collected data from residents affected by two violent tornadoes in 2013, with the assistance of a professional survey lab which implemented a random-digit-dialling telephone survey. The working sample included 517 respondents with oversampled older adults. Multinomial logistic regression, Poisson regression, and Ordinary Least Square Regression were conducted separately for younger and older adults. The results indicated a significant effect of stress levels on PTG among older adults only. Nonetheless, the differences in effect sizes between the two groups were not significant. Meanwhile, respondents' financial losses and their family members' declined health were significant predictors of improved health among older adults. Similarly, family members' declined mental health was a significant predictor of PTD among older adults, but not younger adults. Compared to young adults, older adults were more vulnerable to their family members' declined mental health, but also more resilient to stressful situations, financial losses, and family members' declined physical health. Lastly, although risk and resilience factors could be constructed with the same set of items, they function differently among different groups of people. Hence, more studies on heterogeneity are needed to further refine resilience frameworks. 
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  5. Guided by influential theories of disaster research and gerontology, this study examines health resilience associated with tornadoes, particularly focusing on how individuals’ tornado-associated stress, financial losses, and family members’ well-being affected posttraumatic distress (PTD), posttraumatic growth (PTG), and self-reported changes in health among adults. To reach this goal, this study collected data from residents affected by two violent tornadoes in 2013, with the assistance of a professional survey lab which implemented a random-digit-dialling telephone survey. The working sample included 517 respondents with oversampled older adults. Multinomial logistic regression, Poisson regression, and Ordinary Least Square Regression were conducted separately for younger and older adults. The results indicated a significant effect of stress levels on PTG among older adults only. Nonetheless, the differences in effect sizes between the two groups were not significant. Meanwhile, respondents’ financial losses and their family members’ declined health were significant predictors of improved health among older adults. Similarly, family members’ declined mental health was a significant predictor of PTD among older adults, but not younger adults. Compared to young adults, older adults were more vulnerable to their family members’ declined mental health, but also more resilient to stressful situations, financial losses, and family members’ declined physical health. Lastly, although risk and resilience factors could be constructed with the same set of items, they function differently among different groups of people. Hence, more studies on heterogeneity are needed to further refine resilience frameworks. 
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  6. Guided mainly by the social vulnerability perspective and life course perspective, this study examined age patterns of financial preparedness for emergencies and how they were contextualized by vulnerabilities at the individual and community levels. We matched data from the Federal Emergency Management Agency 2018 National Household Survey and 15 indicators of the Social Vulnerability Index at the county level. Two-level logistic regressions were conducted with the working sample, which included 4,623 respondents from 958 counties. The results showed that adults aged 18 to 44 were more likely than those aged 65 to 74 to set aside money for emergencies among Hispanics, those with minor children in the household, and in communities with higher levels of poverty, higher percentages of minorities, and higher percentages of no vehicles, but less likely to do so among the White and those with insurance. The findings were discussed within a multilevel layered vulnerability framework. 
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  7. ABSTRACT Objective: This study investigated how the effectiveness of household emergency plans during tornadoes was associated with family discussions, and the attributes of the plan for different age groups. Methods: A telephone survey was conducted in 2014, one year after two 2013 Enhanced Fujita 4/5 tornadoes. The working sample included 223 respondents who reported having a household emergency plan before the tornadoes. The latent class analysis was used to identify the patterns of the plans and develop a typology based on their content. Logistic regression was used to examine predictors for plan effectiveness. Results: Two classes of plans were identified: quality plans that were rich in content and limited plans that had lower levels of content richness. Older adults were less likely to have quality plans and less likely to have family discussions. Quality of the plan and discussions with family members increased plan effectiveness among older adults, but not younger adults. Conclusions: Better emergency planning could be more important for older than for younger adults. The findings were discussed from a gerontological perspective that focuses on older adults’ unique needs, vulnerabilities, and resilience factors. 
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  8. null (Ed.)
    This study examined age differences in barriers to preparing for disasters and how caregiving responsibilities are associated with these barriers among different age groups. Using a sample of 1142 individuals from the 2017 Federal Emergency Management Agency National Household Survey, binary and multinomial logistic regressions were conducted to investigate the likelihood of encountering any or one of the two types of barriers, namely, barriers related to coping appraisal (i.e., capacity) and those related to threat appraisal (i.e., risk perception). Age was the key predictor and was categorized into five groups: 18–34, 35–49, 50–64, 65–74, and 75+. The results showed that the 18–34, 35–49, and 75+ age groups were more likely to have coping appraisal barriers than those aged between 65 and 74. In addition, being a caregiver increased the likelihood of having coping appraisal barriers. Interestingly, relative to the 65–74 age group, being a caregiver in the 18–34, 35–49, and 50–64 age groups would be more likely to have coping appraisal barriers. Our findings highlighted age patterns and heterogeneity among older adults. This study also directed attention to how disaster preparation behaviors were shaped by life course experiences. 
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