Study explores effect of COVID-19 mortality in kinship networks

Deaths from COVID-19 will have a ripple effect causing impacts on the mental health and health of surviving family members. But the extent of that impact has been hard to assess until now. Every death from COVID-19 will impact approximately nine surviving family members, according to a study.

In a study of kinship networks in the United States, the researchers said that approximately nine surviving close family members will be affected by each death from the virus in the country.

For example, if the virus kills 190,000 people, 1.7 million will experience the loss of a close relative, said Ashton Verdery, associate professor of sociology, demography and social data analytics, and an affiliate of the Population Research Institute and Institute for Computational and Data Sciences, Penn State.

A kinship network includes grandparents, parents, siblings, spouses, and children.

According to Verdery, the multiplier could serve as an indicator to help raise awareness about the scale of the disease and the ripple effects that the disease may have on a community, as well as prepare officials and business leaders to manage those effects.

"It's very helpful to have a sense of the potential impacts that the pandemic could have," said Verdery. "And, for employers, it calls attention to policies around family leave and paid leave. At the federal level, it might inform officials about possible extensions for FMLA (Family and Medical Leave Act). There could also be some implications for caretaking. For example, a lot of children grow up in grandparent-led houses and they would be impacted."

The researchers, who released their findings in the current issue of the Proceedings of the National Academy of Sciences, said some slight differences in the bereavement multiplier exist between white and black Americans. For white Americans, the median multiplier is estimated at 8.86, while it is 9.18 for black Americans, said Verdery.

The researchers also suggest that people may be facing the loss of a close loved one at a younger age because of the virus, according to Verdery, who worked with Emily Smith-Greenaway, associate professor of sociology, USC; Rachel Margolis, associate professor of sociology, the University of Western Ontario and Jonathan K. Daw, associate professor of sociology and demography, Penn State.

"There are a substantial number of people who may be losing parents that we would consider younger adults and a substantial number of people may be losing spouses who are in their 50s or 60s," he said.

While there are some limitations, the indicator could help local officials understand the waves of grief that may affect specific areas and regions of the country.

"Our statistics are based on national averages, so it might not translate perfectly, but you could imagine that this could serve as a baseline level to go forward to understand the differences between areas where the outbreaks are severe and places where the outbreaks may not be so severe," said Verdery. "There are regional differences in some of these kinship statistics that would make it less than perfect, but it would be a reasonable first approximation."

For this study, the team built on previous investigations that happened soon after the virus began to spread worldwide.

"The big challenge with the former work was that we used a certain percentage of infections and a certain percentage of deaths," said Verdery.

In that model, there is an inherent prediction that if so many people are infected, there would be a certain number of people who would die and, then, the model estimated how many people will be affected by those deaths. But, thinking through this, we wanted to create a statistic that is easy to understand and one that doesn't rely on specific predictions about death counts."

Ashton Verdery, Associate Professor, Department of Sociology, Demography and Social data Analytics, Affiliate of the Population Research Institute and Institute for Computational and Data Sciences, Penn State

The researchers undertook a computational analysis of COVID-19 mortality in kinship networks of white and black Americans. The demographic data was drawn from the historical record or recent Census Bureau national projections to create a complete kinship network, from which the researchers analyzed grandparents, parents, siblings, spouses, and children.

In the future, the researchers plan to investigate how the bereavement factor during other mortality spikes, such as the opioid epidemic, changes over time and how to better understand when that factor becomes broadly felt across the community.

Source:
Journal reference:

Verdery, A. M., et al. (2020) Tracking the reach of COVID-19 kin loss with a bereavement multiplier applied to the United States. Proceedings of National Academy of Sciences. doi.org/10.1073/pnas.2007476117.

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