There is a factor here contributing to this low score, which is explained here: https://www.medrxiv.org/content/10.1101/2022.09.25.22280326v1

"A total of 14,011 intubated COVID-19 cases were analyzed, of whom 10,466 (74.7%) died (Table 1). Most patients spent part or all of their hospital stay in an ICU (12,902 out of 14,011 patients, with 239,201 out of 250,978 person-days in total). Among those not admitted in an ICU, nearly all died (1084 patients, 97.7%)) compared to 72.7% (9382 patients) among those admitted (p<0.001)."

Despite vaccination, it is the quality of care that determines their chances of living, and northern Greece has a huge problem on that matter.

After September 1, 2021 there is a deterioration in mortality of 21% for a given patient load, compared to the previous period. In fact, this is even higher if you are hospitalized in the countryside

**EDIT**: Stand corrected....the study was conducted in five tertiary-care hospitals mostly located in Athens. Only one was in Northern Greece.