The number of medical negligence cases reported last year increased by nearly a quarter, according to the annual report from the Patient Ombudsman association.
Complaints over waiting times were the main cause of complaint, followed by negative feedback over surgery and emergency treatment.
13,156 complaints were filed last year, an increase of 2,647 on 2020 figures. However it is still below the 2019 figure, which was the last report pre-pandemic.
Madrid saw the higest death rate, with 23.8 deaths per million people. Navarra had the lowest rate at 4.6 deaths per million.
The death rate in the Canaries due to medical negligence stood at 8 cases per million people, whilst the death rate in the Valencian Community due to medical negligence stood at 9.3 cases per million people. In Murcia it was 21.1.