Work out ventilator requirement forecast instantly with clear inputs, formula shown and shareable results.
Chains case numbers through hospitalisation and ventilation rates, then multiplies by ventilation duration to give simultaneous ventilator demand.
Ventilator demand
Ventilators in use = new cases per day x hospitalisation rate x ventilation share x average days ventilated
Demand is proportional to length of ventilation, so a small increase in ventilated days raises the requirement in step.
Only with caution: case ascertainment varies, so hospitalisation data give more reliable forecasts.