Disaster vulnerability,displacement, and infectious disease: Nicaragua and Hurricane Mitch

Population and Environment - Research conducted among socially vulnerable populations caught in the paths of natural disasters represents the forefront of our understanding the health-related...     

Crossing Borders,Crossing Seas: The Philippines,Gender and the Bounding of Cumulative Causation

In this study, we assess how the composition of migrant workers varies with migration prevalence within Filipino communities. Specifically, we test the hypothesis of past cumulative causation scholars that increased migration prevalence results in a decline in migrant selectivity. The Philippines has a social, political and geographical context that differs from that of many other countries characterized by high migration. In this study, we consider whether these different contexts and contingencies might alter the process by which the social phenomenon of cumulative causation occurs. Multiple fixed‐effects models were estimated at the municipality level, with the dependent variable in each model being a demographic characteristic related to the propensity to migrate: marital status, age, sex and years of education. We find, consistent with cumulative causation theory as posited by Douglas S. Massey, that increased migration prevalence did yield a decline in selectivity for education and marital status. However, migration prevalence had no effect on the gender composition of migrants, while time did impact the gender composition, suggesting sustained selectivity by gender attributable to global demand for specifically gendered, migrant labour.     

Feasibility and Acceptability of Smartphone Assessment in Older Adults with Cognitive and Emotional Difficulties

This feasibility study assessed perceived acceptability, adherence rates, and reasons for nonadherence to smartphone-based ecological momentary assessment (EMA). At two sites, participants (n = 103) ages 65 years or older with diagnosed anxiety or depressive disorder and cognitive concerns responded three times daily to smartphone-based EMA questions assessing clinical outcomes for two 10-day periods. Quantitative and qualitative measures followed both 10-day EMA periods. Overall, 76% of participants completed surveys on ≥ 10 of the 20 assessment days, and 70% of participants completed at least 30% of the total surveys. Reasons for nonadherence included technical, logistical, physiological, and cognitive issues. Smartphone-based EMA is feasible in older adults with cognitive and emotional difficulties. EMA tools should be responsive to the needs and preferences of participants to ensure adequate acceptability and adherence in this population. Our findings can inform the design, development, and implementation of mobile technologies in older adults in research and clinical contexts.     

Household migration as a livelihood adaptation in response to a natural disaster: Nicaragua and Hurricane Mitch

This study uses data drawn from the Nicaragua Living Standards and Measurement Study Survey to examine international livelihood migrations from Nicaragua in the years surrounding the rapid-onset Hurricane Mitch event of 1998. The likelihood of an international livelihood migration occurring between the years 1996 and 2001 is modeled utilizing discrete-time event history analysis. While findings indicate no influence of Hurricane Mitch on likelihood of livelihood migration, the Mitch event is associated with increased migrant selectivity according to past household migration experience for migrations to Costa Rica, suggesting these migrations to be livelihood adaptations of those with high capability in the form of access to migrant social networks. In addition, the Mitch event is found to be associated with decreased likelihood of migration by small business owners. This finding is interpreted as reflecting business owning households choosing to forego sending migrants to instead have ‘all hands on deck’ to assist with business operations.