PEOPLE with a severe mental illness are more likely to die following a heart attack than those without a psychiatric diagnosis, new research has suggested.

Experts at Edinburgh University examined anonymous hospital data for more than 235,000 people admitted for heart attacks in Scotland from 1991 to 2014.

They compared the risks of death and further heart attacks and strokes among heart attack patients with schizophrenia, major depression or bipolar disorder to patients without a history of mental illness.

The research team found that people with one of these three conditions were more likely to die within 30 days, one year and five years, and to have another heart attack or stroke, compared to those without ill mental health.

After 30 days, patients with schizophrenia were twice as likely to have died and patients with bipolar disorder or major depression had a 30%-50% increased risk of death.

People with severe mental illness were also less likely to receive revascularisation – an operation to restore blood flow ­– which researchers say may indicate differences in care.

Researchers say the findings may be due to a number of reasons including poor general health, social exclusion and possible differences in longer-term treatment, and are calling for disparities to be urgently addressed.

Dr Caroline Jackson, lead researcher at Edinburgh’s University Usher Institute, said: “This study highlights marked and persistent mental health inequalities in heart attack outcomes in Scotland.

“The underlying reason is likely to be multi-factorial and complex, and remains poorly understood.

“We need to know how comorbidities and lifestyle factors contribute to these disparities.

“We also need detailed investigation of the entire patient journey, from heart attack onset to rehabilitation among people with severe mental illness, to identify any areas of weakness in clinical care.”

The researchers found no evidence of any improvement across the 24-year period up to 2014 examined in the study.

They advise that people with mental health conditions should continue to seek advice from their medical team if they have any concerns about their health.

The study was funded by the Scottish Government’s Chief Scientist Office and is published in the journal BMC Medicine.