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Hospitalisation rates differed by city district and ethnicity during the first wave of COVID-19 in Amsterdam, The
Liza Coyer1,2, Elke Wynberg3, Marcel Buster4
1Department of Infectious Diseases, Public Health Service of Amsterdam, Nieuwe Achtergracht 100, 1018 WT, Amsterdam, The Netherlands. lcoyer@ggd.amsterdam.nl.
Insights
COVID-19 hospitalizations were higher in peripheral Amsterdam districts and among individuals with a non-Western migration background. These findings highlight disparities in the burden of coronavirus disease 2019 (COVID-19) during the initial pandemic wave.
Area of Science:
- Public Health
- Epidemiology
- Health Services Research
Background:
- Understanding COVID-19 burden at the city district level is crucial for targeted prevention.
- Amsterdam, Netherlands, serves as the study area for examining COVID-19 hospitalizations.
Purpose of the Study:
- To analyze COVID-19 hospitalizations by city district and migration background in Amsterdam.
- To identify disparities in COVID-19 burden based on geographic location and demographic factors.
Main Methods:
- Utilized surveillance data for PCR-confirmed SARS-CoV-2 hospitalizations until May 31, 2020.
- Matched hospitalization data with municipal registration data on migration background.
- Calculated standardized hospitalization rates, rate differences, and rate ratios, adjusting for age and sex using Poisson regression.
Main Results:
- Peripheral city districts (South-East, New-West, North) with lower socioeconomic and health status showed higher hospitalization rates compared to central districts.
- Individuals with a non-Western migration background experienced significantly higher hospitalization rates than ethnic-Dutch individuals.
- Both city district and migration background were independently associated with COVID-19 hospitalization risk.
Conclusions:
- City districts characterized by lower socioeconomic and health status, as well as those with a non-Western migration background, bore the highest burden of COVID-19 during the first wave.
- Findings underscore the need for tailored public health interventions addressing geographic and demographic disparities in COVID-19 impact.
Background:
It is important to gain insight into the burden of COVID-19 at city district level to develop targeted prevention strategies. We examined COVID-19 related hospitalisations by city district and migration background in the municipality of Amsterdam, the Netherlands.
Methods:
We used surveillance data on all PCR-confirmed SARS-CoV-2 hospitalisations in Amsterdam until 31 May 2020, matched to municipal registration data on migration background. We calculated directly standardised (age, sex) rates (DSR) of hospitalisations, as a proxy of COVID-19 burden, per 100,000 population by city district and migration background. We calculated standardised rate differences (RD) and rate ratios (RR) to compare hospitalisations between city districts of varying socio-economic and health status and between migration backgrounds. We evaluated the effects of city district and migration background on hospitalisation after adjusting for age and sex using Poisson regression.
Results:
Between 29 February and 31 May 2020, 2326 cases (median age 57 years [IQR = 37-74]) were notified in Amsterdam, of which 596 (25.6%) hospitalisations and 287 (12.3%) deaths. 526/596 (88.2%) hospitalisations could be matched to the registration database. DSR were higher in individuals living in peripheral (South-East/New-West/North) city districts with lower economic and health status, compared to central districts (Centre/West/South/East) (RD = 36.87,95%CI = 25.79-47.96;RR = 1.82,95%CI = 1.65-1.99), and among individuals with a non-Western migration background compared to ethnic-Dutch individuals (RD = 57.05,95%CI = 43.34-70.75; RR = 2.36,95%CI = 2.17-2.54). City district and migration background were independently associated with hospitalisation.
Conclusion:
City districts with lower economic and health status and those with a non-Western migration background had the highest burden of COVID-19 during the first wave of COVID-19 in Amsterdam.
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