COVID-19 burden differed by city district and ethnicity during the pre-vaccination era in Amsterdam, the Netherlands 3 73 RESULTS Study population Between 15 June 2020 and 20 January 2021, a total of 53,584 COVID-19 cases were notified. Among these individuals, 1,113 (2.1%) were hospitalised and 297 (0.6%) deceased. Figure 1 shows that there were two distinct peaks of notified COVID-19 cases during the second COVID-19 wave: in the middle of October and in December. Characteristics of COVID-19 cases by hospitalisation status are shown in Table 1. Hospitalised cases were older than non-hospitalised cases (median 65 years [IQR=50-76] versus 34 years [IQR=2551]). Confirmed cases were slightly more often female than male (28,299 [52.8%]), while hospitalised cases were more often male (636/1,113 [57.1%]). Figure 1. Confirmed COVID-19 cases notified to the Public Health Service of Amsterdam by notification date from 15 June 2020 to 20 January 2021, stratified by hospitalisation status
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