The 4C Mortality Score is a risk stratification score that predicts in-hospital mortality for hospitalised COVID-19 patients, produced by the ISARIC 4C consortium.
The Score is intended to be considered only by clinicians to aid their clinical decision-making, however clinicians should ultimately rely on their own clinical judgement in treatment decisions. In compliance with the Medical Devices Regulations 2002, the raw data generating the Score and look up table to estimate mortality are provided for the clinician to review and as such this webpage is not considered to be a medical device.
It is designed to be easy-to-use, and require only parameters that are commonly available at hospital presentation.
It is based on a UK cohort of patients, and should not be adopted for routine clinical use in other settings until it has been appropriately validated.
For full details, see the paper introducing the score.
This page is an infographic that visualises risk, based on observed mortality among hospitalised adult COVID19 patients recruited into the ISARIC 4C study in the UK.
Please select a value for every variable to calculate a mortality score.
It is important that everyone follows the Government's advice on Staying alert and safe (social distancing), and on self-isolating if they or someone in their household has symptoms of COVID-19. This is important not only to protect yourself, but also to prevent you from accidentally infecting more vulnerable people.
People who are defined as extremely vulnerable on medical grounds should also follow the government's advice on shielding.
If you think that you might have COVID-19, you should stay at home and consult the NHS Website for advice.