My reason for posting the graphic was in the title, older people should take self- isolating and social distancing very seriously, age adds a lot to the score.
The graphic only comes into play when you have caught COVID-19 and it has progresed to a critical state.
The scoring is made by a clinician by entering the person's data in section 1,2, and 3 to give a nominal score and adjusting it for any special consideration according to the instruction next to the exclamation mark.
The score then leads to a grade indicating the most appropriate treatment, again the final choice is by a clinician.
Higher scores mean that chance of survival is less, age gives a start to a high score so older people should be more careful.