Interprofessional Care and Informal Support Networks of Independent Community-Dwelling Older Adults

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Social network analysis provides an important framework for studying the causes, consequences, and structure of social ties. However, standard...

Abstract. Cultural transmission across generations is key to cumulative cultural evolution. While several mechanisms—such as vertical, horizontal, and obli

We show that migrants globally face complex individual, family and social, and provider-level and system-level barriers to HPV vaccination, resulting in low uptake of HPV vaccines and missed opportuni...

Many public health interventions are conducted in settings where individuals are connected and the intervention assigned to some individuals may spill over to o...

The bulk of causal inference studies rule out the presence of interference between units. However, in many real-world scenarios, units are interconnected by social, physical, or virtual ties, and the effect of the treatment can spill from one unit to other connected individuals in the network. In this paper, we develop a machine learning method that uses tree-based algorithms and a Horvitz–Thompson estimator to assess the heterogeneity of treatment and spillover effects with respect to individual, neighborhood, and network characteristics in the context of clustered networks and interference within clusters. The proposed network causal tree (NCT) algorithm has several advantages. First, it allows the investigation of the heterogeneity of the treatment effect, avoiding potential bias due to the presence of interference. Second, understanding the heterogeneity of both treatment and spillover effects can guide policymakers in scaling up interventions, designing targeting strategies, and increasing cost-effectiveness. We investigate the performance of our NCT method using a Monte Carlo simulation study and illustrate its application to assess the heterogeneous effects of information sessions on the uptake of a new weather insurance policy in rural China.

Published article 9450 Rural and Remote Health

Background In the Indian socio-cultural context, the involvement of older adults in grandchild care is a normative expectation and a common household practice. Despite its prevalence, limited empirica...

Background Family caregivers play a crucial role in supporting older adults, particularly in low-resource settings where formal healthcare services may be limited. Their responsibilities include provi...

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People not only inhabit social networks, but also form beliefs about their social world. We assessed these beliefs in isolated villages in Honduras, and found that individuals overestimated kinship ti...