COVID-19 burden differed by city district and ethnicity during the pre-vaccination era in Amsterdam, the Netherlands 3 77 Table 2. Hospitalisation rates by city district and migration background among confirmed COVID-19 cases who were linked to the population register, in Amsterdam, the Netherlands, from 15 June 2020 to 20 January 2021 Hospital admissions Populationa Crude rate per 100,000 population (95% CI) Standardised rate per 100,000 populationb (95% CI) Standardised rate difference (95% CI) Standardised rate ratio (95% CI) Total 1,096 873,055 125.54 (118.21-133.19) City districtc Central 480 523,536 91.68 (83.66-100.27) 93.41 (85.24-102.17) Ref. Ref. Peripheral 615 349,519 175.96 (162.32-190.43) 173.31 (159.85-187.6) 79.89 (63.81-95.98) 1.86 (1.74-1.97) Migration background None (ethnic-Dutch) 292 386,521 75.55 (67.13-84.73) 60.53 (53.65-68.04) Ref. Ref. Non-European 681 316,720 215.02 (199.17-231.79) 273.22 (252.21-295.51) 212.69 (190.13-235.26) 4.51 (4.37-4.65) European 116 169,814 68.31 (56.45-81.93) 82.36 (67.86-99.03) 21.83 (5.06-38.6) 1.36 (1.14-1.58) a Population on 1 April 2020 b Standardised for age (in 15-year groups) and gender, using the total population of Amsterdam as the standard population c 1 matched case had missing data
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