Cluster B personality disorder (PD) is a highly prevalent mental health condition in general population (1 to 6% depending on the subtype and study). Patients affected are known to be heavier users of both mental and medical healthcare than other clinical conditions such as depression. Few studies have highlighted their elevated mortality rate compared to general population.

The estimates were produced using data from the integrated monitoring system for chronic disease of Quebec. It provides annual and life prevalence, mortality rate, years of and healthcare utilization profile Quebec inhabitants.

A total of 7,995,963 people were included in the study. The life prevalence of cluster B PD is 2.6%. The mean years of lost life is 13 for men and 9 for women when they are compared to general population. The 3 most important causes of death are: suicide (20.4%), cardiovascular diseases (19.1%) and cancers (18.6%). The standardized mortality ratio (SMR) for each medical condition is superior in cluster B personality disorders than general population. The most important SMR is for suicide (male: 10.2 and female: 21). In the year 2011–2012, 78% had consulted a general practitioner, 62% a psychiatrist, 41% were admitted in an emergency department and 21% were hospitalized.

The authors have not supplied their declaration of competing interest.