Table 2. Demographic and clinical characteristics of hospitalised COVID-19 cases, I-MOVE-COVID-19 hospital surveillance network, Europe, February 2020–December 2021 (n = 25,971).
| Characteristics | SARS-CoV-2-positive hospitalised patients | |
|---|---|---|
| n | % | |
| Sex | ||
| Female | 11,780 | 45.4 |
| Male | 14,191 | 54.6 |
| Age (years) | ||
| 0–44a | 4,292 | 16.5 |
| 45–64 | 7,675 | 29.6 |
| 65–74 | 4,996 | 19.2 |
| ≥ 75 | 9,008 | 34.7 |
| Median age (IQR) | 67 (52–79) | |
| Number of chronic underlying conditions b | ||
| 0 | 1,763 | 10.0 |
| 1 | 4,918 | 27.9 |
| ≥ 2 | 10,971 | 62.2 |
| Missingc | 8,319 | 32.0 |
| ICU/HDU admission b | ||
| Yes | 3,196 | 13.7 |
| No | 20,093 | 86.3 |
| Missingc | 2,682 | 10.3 |
| Median LOS (IQR) in days | 8 (4–18) | |
| Mechanical ventilation | ||
| Any ventilation receivedb | 6,754 | 38.4 |
| - High-flow oxygend | 1,608 | 23.8 |
| - Non-invasived | 1,503 | 22.3 |
| - Invasived | 1,007 | 14.9 |
| - Otherd | 2,323 | 34.4 |
| - Ventilation type unknownd | 313 | 4.6 |
| No ventilationb | 10,836 | 61.6 |
| Missingc | 8,381 | 32.3 |
| Discharge status b | ||
| In-hospital death | 4,306 | 18.8 |
| Discharged from hospital | 18,557 | 81.2 |
| Missingc | 3,108 | 12.0 |
| Median LOS (IQR) in days | 8 (4–15) | |
HDU: high-dependency unit; ICU: intensive care unit; I-MOVE: Influenza-Monitoring Vaccine Effectiveness in Europe; IQR: interquartile range; LOS: length of stay; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.
a Hospitalised COVID-19 cases aged under 18 years comprised 2.6% (663/25,971) of the surveillance population but these data were not collected by all sites.
b Percentage is calculated as the proportion of hospitalised cases with non-missing data.
c Percentage is calculated as the proportion of all hospitalised cases.
d For types of ventilation used, the percentage is calculated as the proportion of hospitalised cases where any mechanical ventilation was received.
Underlying conditions: asthma, anaemia, asplenia, cancer, dementia, diabetes, heart disease, hypertension, immunodeficiency, liver disease, lung disease, neuromuscular disorder, obesity, renal disease, rheumatic disease, stroke, tuberculosis.