Table 2.
Non-covid-19 hospital admission rates (per 100 000/week) during covid-19 pandemic in Denmark compared with prepandemic baseline period
| Cause | Baseline rate (reference) | First national lockdown | Gradual reopening | Few restrictions | Regional lockdowns | Second national lockdown | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rate | Rate ratio (95% CI) | Rate | Rate ratio (95% CI) | Rate | Rate ratio (95% CI) | Rate | Rate ratio (95% CI) | Rate | Rate ratio (95% CI) |
||||||
| Any cause | 204.1 | 142.8 | 0.70 (0.66 to 0.74) | 178.6 | 0.88 (0.84 to 0.92) | 188.8 | 0.92 (0.90 to 0.96) | 193.9 | 0.95 (0.92 to 0.98) | 158.3 | 0.78 (0.73 to 0.82) | ||||
| Including covid-19 admissions | 204.2 | 147.4 | 0.72 (0.68 to 0.76) | 179.6 | 0.88 (0.84 to 0.92) | 189.3 | 0.93 (0.90 to 0.96) | 197.3 | 0.97 (0.94 to 1.00) | 168.9 | 0.83 (0.79 to 0.87) | ||||
| ICD-10 chapters | |||||||||||||||
| Infectious diseases | 9.1 | 6.7 | 0.73 (0.70 to 0.76) | 7.7 | 0.85 (0.81 to 0.89) | 8.5 | 0.93 (0.90 to 0.97) | 8.2 | 0.90 (0.88 to 0.92) | 7.1 | 0.77 (0.75 to 0.80) | ||||
| Including covid-19 admissions | 9.2 | 11.0 | 1.19 (1.08 to 1.32) | 8.6 | 0.94 (0.90 to 0.97) | 9.1 | 0.98 (0.95 to 1.02) | 11.3 | 1.22 (1.14 to 1.32) | 16.9 | 1.84 (1.65 to 2.05) | ||||
| Cancer | 15.2 | 13.1 | 0.86 (0.80 to 0.91) | 13.6 | 0.89 (0.85 to 0.93) | 13.0 | 0.85 (0.83 to 0.88) | 14.0 | 0.92 (0.88 to 0.96) | 12.5 | 0.82 (0.77 to 0.88) | ||||
| Haematological disorders | 4.8 | 3.1 | 0.65 (0.59 to 0.71) | 4.4 | 0.93 (0.83 to 1.04) | 4.4 | 0.93 (0.87 to 0.99) | 4.7 | 0.99 (0.94 to 1.04) | 3.6 | 0.76 (0.68 to 0.85) | ||||
| Endocrine, nutrition, and metabolism | 8.9 | 5.1 | 0.57 (0.52 to 0.63) | 7.3 | 0.82 (0.74 to 0.91) | 8.4 | 0.95 (0.89 to 1.01) | 7.9 | 0.88 (0.84 to 0.93) | 6.3 | 0.70 (0.63 to 0.78) | ||||
| Mental and behavioural disorders | 2.7 | 1.7 | 0.64 (0.53 to 0.77) | 2.5 | 0.91 (0.85 to 0.98) | 2.9 | 1.06 (1.01 to 1.11) | 2.7 | 0.98 (0.93 to 1.04) | 2.1 | 0.77 (0.70 to 0.85) | ||||
| Diseases of the nervous system | 6.3 | 3.4 | 0.54 (0.46 to 0.64) | 5.0 | 0.80 (0.73 to 0.87) | 5.6 | 0.89 (0.82 to 0.97) | 5.8 | 0.92 (0.84 to 1.01) | 4.5 | 0.72 (0.63 to 0.81) | ||||
| Sensory organ disease | 2.0 | 1.1 | 0.54 (0.45 to 0.65) | 1.6 | 0.81 (0.74 to 0.89) | 1.7 | 0.85 (0.79 to 0.91) | 1.8 | 0.92 (0.86 to 0.99) | 1.3 | 0.65 (0.57 to 0.74) | ||||
| Circulatory disease | 24.9 | 18.9 | 0.76 (0.71 to 0.82) | 23.9 | 0.96 (0.92 to 1.00) | 23.3 | 0.93 (0.90 to 0.96) | 25.0 | 1.00 (0.97 to 1.03) | 21.7 | 0.87 (0.82 to 0.93) | ||||
| Respiratory diseases | 21.2 | 14.9 | 0.70 (0.62 to 0.79) | 13.4 | 0.63 (0.60 to 0.66) | 15.5 | 0.73 (0.70 to 0.77) | 14.8 | 0.70 (0.66 to 0.73) | 12.6 | 0.59 (0.56 to 0.63) | ||||
| Digestive diseases | 19.5 | 14.0 | 0.72 (0.67 to 0.77) | 18.2 | 0.94 (0.88 to 0.99) | 18.7 | 0.96 (0.93 to 1.00) | 19.1 | 0.98 (0.95 to 1.02) | 15.8 | 0.81 (0.76 to 0.87) | ||||
| Dermatological diseases | 2.2 | 1.3 | 0.61 (0.55 to 0.68) | 1.8 | 0.84 (0.78 to 0.90) | 2.0 | 0.90 (0.86 to 0.95) | 1.9 | 0.86 (0.79 to 0.92) | 1.5 | 0.68 (0.64 to 0.72) | ||||
| Bone, muscle, and connective tissues | 15.5 | 5.2 | 0.34 (0.25 to 0.46) | 12.1 | 0.78 (0.67 to 0.91) | 14.0 | 0.90 (0.81 to 1.01) | 17.6 | 1.14 (1.06 to 1.23) | 8.9 | 0.58 (0.49 to 0.68) | ||||
| Genitourinary system | 12.3 | 8.6 | 0.71 (0.64 to 0.77) | 11.3 | 0.93 (0.87 to 0.99) | 12.1 | 0.98 (0.94 to 1.03) | 12.6 | 1.03 (0.98 to 1.08) | 10.0 | 0.82 (0.75 to 0.89) | ||||
| Injury or poisoning | 19.9 | 14.8 | 0.74 (0.69 to 0.79) | 18.5 | 0.93 (0.88 to 0.98) | 20.1 | 1.01 (0.98 to 1.04) | 19.0 | 0.95 (0.92 to 0.99) | 16.8 | 0.84 (0.80 to 0.88) | ||||
| Selected acute medical conditions | |||||||||||||||
| Myocardial infarction | 2.4 | 2.2 | 0.90 (0.80 to 1.01) | 2.4 | 0.97 (0.90 to 1.04) | 2.3 | 0.93 (0.88 to 0.99) | 2.5 | 1.02 (0.98 to 1.07) | 2.4 | 1.00 (0.96 to 1.04) | ||||
| Heart failure | 2.8 | 2.1 | 0.74 (0.65 to 0.83) | 2.5 | 0.91 (0.85 to 0.97) | 2.4 | 0.87 (0.83 to 0.91) | 2.5 | 0.91 (0.86 to 0.96) | 2.3 | 0.84 (0.78 to 0.91) | ||||
| Stroke | 3.3 | 3.0 | 0.89 (0.86 to 0.93) | 3.6 | 1.07 (1.02 to 1.12) | 3.5 | 1.04 (1.00 to 1.09) | 3.4 | 1.03 (0.98 to 1.09) | 3.2 | 0.97 (0.93 to 1.01) | ||||
| Intracranial bleeding | 0.8 | 0.7 | 0.89 (0.79 to 0.99) | 0.7 | 0.97 (0.84 to 1.11) | 0.8 | 1.02 (0.93 to 1.11) | 0.9 | 1.16 (1.09 to 1.23) | 0.8 | 1.03 (0.95 to 1.13) | ||||
| Acute exacerbation of chronic pulmonary disease | 6.6 | 4.3 | 0.65 (0.61 to 0.69) | 4.1 | 0.62 (0.60 to 0.64) | 5.1 | 0.77 (0.74 to 0.82) | 4.6 | 0.71 (0.67 to 0.75) | 3.7 | 0.56 (0.52 to 0.60) | ||||
| Pneumonia | 9.7 | 6.8 | 0.71 (0.60 to 0.83) | 5.5 | 0.56 (0.53 to 0.60) | 6.1 | 0.63 (0.60 to 0.67) | 5.6 | 0.58 (0.55 to 0.62) | 5.2 | 0.54 (0.51 to 0.57) | ||||
| Sepsis | 5.5 | 4.2 | 0.77 (0.73 to 0.82) | 4.8 | 0.88 (0.83 to 0.93) | 5.3 | 0.96 (0.93 to 1.00) | 5.1 | 0.94 (0.91 to 0.97) | 4.5 | 0.83 (0.80 to 0.86) | ||||
| Urinary tract infection | 5.4 | 4.1 | 0.76 (0.68 to 0.85) | 5.2 | 0.97 (0.93 to 1.02) | 5.8 | 1.09 (1.05 to 1.13) | 5.6 | 1.04 (0.99 to 1.09) | 4.7 | 0.87 (0.83 to 0.91) | ||||
| Bone, skin, and soft tissue infections | 2.6 | 1.6 | 0.64 (0.58 to 0.69) | 2.2 | 0.85 (0.79 to 0.92) | 2.5 | 1.00 (0.95 to 1.05) | 2.2 | 0.88 (0.81 to 0.95) | 2.0 | 0.77 (0.71 to 0.83) | ||||
ICD-10=international classification of diseases version 10.
Rate ratio directly standardised using age (10 year intervals) and sex distribution of Danish population on 1 January 2019 as reference.