viral (eg. COVID19) and bacterial pneumonia treatment almost always entails mechanical respiration, regardless of patient age. CPAP, BiPAP indicated if spontaneous breathing in distress; ventilator, if not, indicating advanced tissue damage, regardless of age and comorbid diseased organs. The last complicates Rx chemistry combinations even in optimal clinical settings. "The numbers" are not all that relevant to comprehending the actual limitations of medical "arts" and why, in fact, physicians cannot or should not entertain reflections on indefinite "life support" to salve the consciences of the living.

Suburban Hospital, Bethesda, MD allowed my brother one week to grieve in ICU. A year ago.

So here we are. My understanding is, presses have devoted much interest in honoring the aged, condemning DNRs, and consoling the innocence of bereaved, because time is short, and there is no "effective treatment" for that.

archived comorbid disease, Causes of death statistics (2017)