Table 1

Description of the algorithm that converts three parameters included in the national COVID monitoring framework into the risk levels associated with the three pre-determined colours (green/yellow, orange, and red)

Replicability index*
(or Rt according to the Italian notation)
Initial colour assignment†Additional parameters*Process of colour assignment revisionFinal colour assignment†
Number of new cases over 14 days normalised to 100 000 subjectsPercentage of ICU beds occupied by COVID-19 patients
between 1.00 and 1.20orange>400and/or>30%yesred