Estimating the shielding ratio for institutionalised nursing home residents versus the rest of the population in 10 countries during the first wave of COVID-19
| Country | Nursing home residents per 100 000 population | Proportion COVID-19 deaths in nursing homes, G (%) | Overall population IFR (%) | IFR in non-institutionalised, IFRl (%) | Shielding ratio, S |
| Belgium | 1080 | 61 | 0.87 | 0.34 | 1.9 (1.4–3.2) |
| Denmark | 690 | 35 | 0.27 | 0.18 | 0.5 (0.4–0.9) |
| Germany | 980 | 39 | 0.23 | 0.14 | 0.4 (0.3–0.6) |
| Hungary | 570 | 23 | 0.54 | 0.42 | 0.9 (0.6–1.4) |
| Slovenia | 1100 | 81 | 0.11 | 0.02 | 0.3 (0.2–0.5) |
| Spain | 690 | 63* | 0.85 | 0.31 | 3.1 (2.2–5.1) |
| Sweden | 810 | 46 | 0.57 | 0.31 | 1.3 (0.9–2.1) |
| UK (England) | 760 | 45 | 0.93 | 0.51 | 2.2 (1.6–3.7) |
| South Korea | 420 | 8 | 0.09 | 0.08 | 0.07 (0.05–0.11) |
| Israel | 520 | 39 | 0.10 | 0.06 | 0.3 (0.2–0.5) |
S is calculated from equation 4 assuming IFRh in nursing home residents of 25% in the baseline scenario and 15% or 35% in the scenarios of sensitivity analyses that define the presented bounds.
*The proportion may be actually lower, since in its calculation the International Long Term Care Policy Network report16 uses both confirmed and probable nursing home deaths but only confirmed total deaths; with a proportion of 50% instead of 63%, IFRl is estimated as 0.43% and S as 2.5.
IFR, infection fatality rate.;