Social isolation linked to more severe COVID-19 outbreaks | The Daily Star
12:00 AM, May 31, 2020 / LAST MODIFIED: 02:48 AM, May 31, 2020

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Social isolation linked to more severe COVID-19 outbreaks

Regions of Italy with higher family fragmentation and a high number of residential nursing homes experienced the highest rate of COVID-19 infections in people over age 80, according to a new study published recently in the open-access journal PLOS ONE.

Italy has been one of the countries most affected by the COVID-19 pandemic. Researchers have speculated that this is due to Italy's age demographics as well as the connectedness of the older and younger generations and high rate of intergenerational contact. If true, this would suggest that regions with larger households would have more severe COVID-19 outbreaks in older adults.

Across Italian regions, the COVID-19 incidence rate ranged from 0.27% to 4.09% of the population being affected. The mean number of household members ranged from 2.02 to 2.58; the percentage of one member households ranged from 28.5 to 40.9; and percentage of COVID-19 cases that occurred in people over age 80 ranged from 4.3 to 23.6.

A model that reflected the percent of the population over age 80, days since 50 cases were registered, percentage of nursing home beds in the total population, and mean number of household members was best able to predict the COVID-19 incidence among older people in each region, with an adjusted R-squared value of 0.695 (p(0.001). A lower mean number of household members and higher number of nursing home beds was associated with more COVID-19 cases in older adults.

The study was limited by the fact that age-specific infection rates were not available and the number of COVID-19 tests varied enormously by regions.

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