Table 3

MRR for unplanned hospital attendances in the weeks following the ‘shelter at home’ order in Denmark

9–15 March16–22 March23–29 March30 March–5 April6–12 April13–19 April20–26 April
MRR (95% CI, p value)MRR (95% CI, p value)MRR (95% CI, p value)MRR (95% CI, p value)MRR (95% CI, p value)MRR (95% CI, p value)MRR (95% CI, p value)
Population mortality—including COVID-19-related attendances1.04 (0.96 to 1.14, 0.35)1.09 (1.00 to 1.19, 0.046)1.11 (1.02 to 1.21, 0.02)1.20 (1.10 to 1.31,<0.001)1.10 (1.00 to 1.20, 0.04)1.17 (1.07 to 1.27, 0.001)1.15 (1.05 to 1.26, 0.003)
Population mortality—excluding COVID-19-related attendances1.04 (0.95 to 1.13, 0.38)1.06 (0.98 to 1.16, 0.16)1.05 (0.96 to 1.15, 0.28)1.10 (1.01 to 1.20, 0.03)1.01 (0.92 to 1.11, 0.80)1.10 (1.01 to 1.21, 0.04)1.08 (0.98 to 1.18, 0.11)
Risk of death-in-hospital—including COVID-19-related attendances0.96 (0.83 to 1.11, 0.59)0.91 (0.79 to 1.06, 0.22)0.91 (0.78 to 1.06, 0.24)1.03 (0.89 to 1.20, 0.68)1.03 (0.89 to 1.20, 0.66)1.02 (0.88 to 1.19, 0.79)1.01 (0.87 to 1.18), 0.87
Risk of death-in-hospital—excluding COVID-19-related attendances0.96 (0.83 to 1.10, 0.54)0.85 (0.73 to 0.99, 0.04)0.79 (0.67 to 0.93, 0.004)0.86 (0.73 to 1.01, 0.06)0.86 (0.74 to 1.01, 0.07)0.92 (0.79 to 1.08, 0.31)0.90 (0.77 to 1.06, 0.20)
Risk of death-in-non-psychiatric-hospital0.96 (0.83 to 1.11, 0.58)0.86 (0.74 to 1.00, 0.04)0.79 (0.67 to 0.93, 0.004)0.86 (0.73 to 1.00, 0.06)0.87 (0.74 to 1.01, 0.07)0.92 (0.79 to 1.08, 0.30)0.90 (0.77 to 1.06, 0.20)
Population mortality by age
 <181.18 (0.52 to 2.69, 0.69)0.84 (0.30 to 2.36, 0.74)0.94 (0.33 to 2.68, 0.91)0.19 (0.02 to 1.45, 0.11)0.55 (0.19 to 1.65, 0.29)1.05 (0.44 to 2.47, 0.19)0.57 (0.19 to 1.74, 0.33)
 18–490.92 (0.61 to 1.42, 0.74)0.88 (0.58 to 1.35, 0.57)0.58 (0.37 to 0.90, 0.02)1.03 (0.69 to 1.56, 0.88)0.63 (0.40 to 0.98, 0.04)1.38 (0.95 to 2.02, 0.09)1.00 (0.66 to 1.53, 0.98)
 49–691.15 (0.98 to 1.36, 0.08)1.00 (0.85 to 1.17, 0.98)0.91 (0.76 to 1.09, 0.29)1.04 (0.88 to 1.23, 0.63)1.06 (0.90 to 1.26, 0.49)1.02 (0.87 to 1.21, 0.77)0.99 (0.83 to 1.18, 0.92)
 70+1.02 (0.94 to 1.10, 0.67)1.12 (1.03 to 1.22, 0.004)1.18 (1.10 to 1.29, <0.001)1.26 (1.16 to 1.36, <0.001)1.14 (1.05 to 1.24, 0.002)1.20 (1.10 to 1.30, <0.001)1.20 (1.11 to 1.31, <0.001)
Risk of death in-hospital excluding COVID-19-related attendances for the five most common diagnosed expected to be stable without COVID-19 pandemic
 SchizophreniaNANANANANANANA
 COPD exacerbation1.06 (0.47 to 2.45, 0.88)0.49 (0.19 to 1.26, 0.14)0.68 (0.23 to 2.04, 0.49)0.63 (0.23 to 1.70, 0.36)0.36 (0.12 to 1.12, 0.08)1.47 (0.59 to 3.68, 0.41)0.49 (0.15 to 1.59, 0.24)
 Hip fracture1.08 (0.28 to 4.15, 0.90)0.73 (0.17 to 3.10, 0.67)1.45 (0.13 to 16.7, 0.77)0.75 (0.10 to 5.40, 0.76)1.09 (0.09 to 12.50, 0.95)0.54 (0.29 to 5.83, 0.50)1.31 (0.29 to 5.84, 0.73)
 Myocardial Infarction1.13 (0.27 to 4.60) NA1.35 (0.21 to 8.72)0.33 (0.04 to 3.2)4.53 (0.81 to 25.20)2.41 (0.50 to 11.73)0.81 (0.18 to 3.72)
 Urinary tract infectionNANANANANANANA
  • The incidence rate of attendances in the control period from 2017 to 2019 was used as reference.

  • NA signifies numbers that could not be calculated due to too few events.

  • The ‘five most stable diagnoses’ designate the 5 of 29 prespecified diagnoses we expected to remain stable during a pandemic.

  • COPD, chronic obstructive pulmonary disease; COVID, SARS-CoV2 virus disease; MRR, mortality rate ratio.