Innovative Strategies for Remotely Sampling Hard-to-Reach Populations: Assessing Phone Versus Internet Respondent-Driven Sampling Approaches Among Venezuelan Refugees and Migrants in Colombia.

It is challenging to quantitatively measure the health vulnerability and risk factors of refugees and migrants residing outside of formal settlement settings. For hard-to-reach populations without available sampling frames, researchers have increasingly turned to novel sampling and statistical methods, like respondent-driven sampling (RDS). "Standard" RDS is typically conducted face-to-face at fixed sites.

Assessing the impact of the COVID-19 pandemic among Venezuelan refugees and migrants in Colombia using respondent-driven sampling (RDS).

Objectives: To determine factors associated with adherence to COVID-19 mitigation measures, related symptoms and testing, as well as pandemic-related income loss among Venezuelan refugee and migrant adults in urban and border areas of Colombia.

Design: Phone-based respondent-driven sampling SETTING: Bogotá and Norte de Santander, Colombia.

Participants: 605 adult Venezuelan refugees and migrants residing in Bogotá (n=305) and Norte de Santander (n=300), who arrived in Colombia after 2014 and completed the survey in August and September 2020.

Alternate delivery platforms and implementation models for bringing evidence-based behavioral interventions to scale for youth facing adversity: a case study in West Africa.

Background: Youth Functioning and Organizational Success for West African Regional Development (Youth FORWARD) was launched as an implementation science collaboration focused on scaling out evidence-based mental health interventions for youth exposed to war and other adversities through novel delivery platforms. This implementation science case study examines the use of a collaborative team approach (CTA) as a scale-out strategy to foster the integration of an evidence-based group mental health intervention, the Youth Readiness Intervention, into youth employment programs tied to regional economic development in Sierra Leone.

Methods: A case study methodology is used to explore the feasibility and acceptability of integrating an evidence-based intervention, the Youth Readiness Intervention (YRI), into youth entrepreneurship programs (ENTR) in Sierra Leone, facilitated by the CTA.

The intergenerational impact of war on mental health and psychosocial wellbeing: lessons from the longitudinal study of war-affected youth in Sierra Leone.

Background: Globally, one in four children lives in a country affected by armed conflict or disaster often accompanied by exposure to a range of adversities including violent trauma and loss. Children involved with armed groups (often referred to as "child soldiers") typically exhibit high levels of mental health needs linked to their experiences. The Longitudinal Study of War-Affected Youth (LSWAY) in Sierra Leone is a seventeen-year prospective longitudinal study of the long-term effects of children's experiences in the country's eleven-year (1991-2002) civil war on their adult mental health and functioning in addition to exploring the potential mechanisms by which intergenerational transmission of emotional and behavioral disruptions due to war trauma may operate.