Hospitalisation rates differed by city district and ethnicity during the first wave of COVID-19 in Amsterdam, the Netherlands 2 45 Table 2. Hospitalisation rates by city district and migration among those linked to the registration database Hospital admissions Population a Crude rate per 100,000 population (95% CI) Standardised rate per 100,000 population b (95% CI) Standardised rate difference (95% CI) Standardised rate ratio (95% CI) Total c 523 873,055 59.90 (54.88-65.27) City district Central (C/W/S/E) 233 523,536 44.51 (38.97-50.6) 44.99 (39.40-51.16) Ref. Ref. Peripheral (SE/N/NW) 289 349,519 82.69 (73.43-92.79) 81.87 (72.68-91.89) 36.87 (25.79-47.96) 1.82 (1.65-1.99) Migration background None (ethnic-Dutch) 204 386,521 52.78 (45.78-60.54) 42.04 (36.38-48.32) Ref. Ref. Non- Western 262 316,720 82.72 (73.01-93.37) 99.08 (87.08-112.28) 57.05 (43.34-70.75) 2.36 (2.17-2.54) Western 57 169,814 33.57 (25.42-43.49) 41.06 (30.96-53.4) -0.98 (-13.28-11.32) 0.98 (0.68-1.27) Abbreviations: C Centre, CI confidence interval, E East, N North, NW North-West, SE South-East, W West 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 3 matched cases had missing data
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