The indirect impact of COVID-19 large-scale containment measures on the incidence of community-acquired pneumonia in older people: a region-wide population-based study in Tuscany, Italy

Int J Infect Dis. 2021 Aug:109:182-188. doi: 10.1016/j.ijid.2021.06.058. Epub 2021 Jul 1.

Abstract

Objective: To evaluate the indirect effect of COVID-19 large-scale containment measures on the incidence of community-acquired pneumonia (CAP) in older people during the first epidemic wave of COVID-19 in Tuscany, Italy.

Methods: A population-based study was carried out on data from the Tuscany healthcare system. The outcome measures were: hospitalization rate for CAP, severity of CAP hospitalizations, and outpatient consumption of antibacterials for CAP in people aged 65 and older. Outcomes were compared between corresponding periods in 2020 (week 1 to 27) and previous years.

Results: Compared with the average of the corresponding periods in the previous 3 years, significant reductions in weekly hospitalization rates for CAP were observed from the week in which the national containment measures were imposed (week 10) until the end of the first COVID-19 wave in July (week 27). There was also a significant decrease in outpatient consumption in all antibacterial classes for CAP.

Conclusions: The implementation of large-scale COVID-19 containment measures likely reduced the incidence of CAP in older people during the first wave of the COVID-19 pandemic in Tuscany, Italy. Considering this indirect impact of pandemic containment measures on respiratory tract infections may improve the planning of health services during a pandemic in the future.

Keywords: COVID-19; Community-acquired pneumonia; containment measures; indirect effects; older population; pandemic.

MeSH terms

  • Aged
  • COVID-19*
  • Community-Acquired Infections* / epidemiology
  • Community-Acquired Infections* / prevention & control
  • Hospitalization
  • Humans
  • Incidence
  • Italy / epidemiology
  • Pandemics
  • Pneumonia*
  • SARS-CoV-2