The new study could provide insight into why Italy’s death rate, at about 8% of total infected people, is higher than in other countries.

The Rome-based institute has examined medical records of about 18% of the country’s coronavirus fatalities, finding that just three victims, or 0.8% of the total, had no previous pathology. Almost half of the victims suffered from at least three prior illnesses and about a fourth had either one or two previous conditions.

More than 75% had high blood pressure, about 35% had diabetes and a third suffered from heart disease.

The average age of those who’ve died from the virus in Italy is 79.5. As of March 17, 17 people under 50 had died from the disease. All of Italy’s victims under 40 have been males with serious existing medical conditions.