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SAN DIEGO – Depression is an independent risk factor for acute myocardial infarction in patients with psoriasis or psoriatic arthritis, a large population-based cohort study indicates.
In this study of more than 10,000 British Columbians with psoriasis and/or psoriatic arthritis, the increased risk of MI was confined to the patient subset having comorbid depression, Lindsay C. Burns, Ph.D., reported at the annual meeting of the American College of Rheumatology.
"These data underscore the need to actively screen for depression among psoriasis and psoriatic arthritis patients and closely monitor cardiovascular health in this high-risk group to improve long-term survival," declared Dr. Burns of the University of British Columbia, Vancouver.
She and her coinvestigators mined the comprehensive health records available for 4.1 million adults through British Columbia’s universal medical insurance coverage system in order to identify all 10,041 patients who were diagnosed with psoriasis by a dermatologist or psoriatic arthritis by a rheumatologist during 1996-2006, and who at that time had no history of MI. The patients were matched by age, gender, and years of follow-up with 47,415 controls.
Acute MI occurred in 268 patients with psoriasis or psoriatic arthritis, for an incidence rate of 5.8 cases per 1,000 person-years. The incidence rate of physician-diagnosed depression was 3.4 per 1,000 person-years in the psoriatic group, with a 10-year prevalence of 21.6%.
In a multivariate regression analysis adjusted for comorbid conditions, socioeconomic status, health resource utilization, age, and gender, individuals with psoriasis or psoriatic arthritis were 26% more likely to be depressed than controls. Diagnosis of depression in psoriatic patients during the follow-up period increased their risk of having an MI by an adjusted 80% compared with psoriatic patients without the psychiatric diagnosis.
Psoriatic subjects without depression had a statistically nonsignificant 10% increased risk of MI compared with nonpsoriatic controls. In contrast, psoriatic patients with diagnosed depression had a 60% greater MI risk than controls, according to Dr. Burns.
The study was funded by the Arthritis Research Center of Canada. Dr. Burns reported having no financial conflicts of interest.
SAN DIEGO – Depression is an independent risk factor for acute myocardial infarction in patients with psoriasis or psoriatic arthritis, a large population-based cohort study indicates.
In this study of more than 10,000 British Columbians with psoriasis and/or psoriatic arthritis, the increased risk of MI was confined to the patient subset having comorbid depression, Lindsay C. Burns, Ph.D., reported at the annual meeting of the American College of Rheumatology.
"These data underscore the need to actively screen for depression among psoriasis and psoriatic arthritis patients and closely monitor cardiovascular health in this high-risk group to improve long-term survival," declared Dr. Burns of the University of British Columbia, Vancouver.
She and her coinvestigators mined the comprehensive health records available for 4.1 million adults through British Columbia’s universal medical insurance coverage system in order to identify all 10,041 patients who were diagnosed with psoriasis by a dermatologist or psoriatic arthritis by a rheumatologist during 1996-2006, and who at that time had no history of MI. The patients were matched by age, gender, and years of follow-up with 47,415 controls.
Acute MI occurred in 268 patients with psoriasis or psoriatic arthritis, for an incidence rate of 5.8 cases per 1,000 person-years. The incidence rate of physician-diagnosed depression was 3.4 per 1,000 person-years in the psoriatic group, with a 10-year prevalence of 21.6%.
In a multivariate regression analysis adjusted for comorbid conditions, socioeconomic status, health resource utilization, age, and gender, individuals with psoriasis or psoriatic arthritis were 26% more likely to be depressed than controls. Diagnosis of depression in psoriatic patients during the follow-up period increased their risk of having an MI by an adjusted 80% compared with psoriatic patients without the psychiatric diagnosis.
Psoriatic subjects without depression had a statistically nonsignificant 10% increased risk of MI compared with nonpsoriatic controls. In contrast, psoriatic patients with diagnosed depression had a 60% greater MI risk than controls, according to Dr. Burns.
The study was funded by the Arthritis Research Center of Canada. Dr. Burns reported having no financial conflicts of interest.
SAN DIEGO – Depression is an independent risk factor for acute myocardial infarction in patients with psoriasis or psoriatic arthritis, a large population-based cohort study indicates.
In this study of more than 10,000 British Columbians with psoriasis and/or psoriatic arthritis, the increased risk of MI was confined to the patient subset having comorbid depression, Lindsay C. Burns, Ph.D., reported at the annual meeting of the American College of Rheumatology.
"These data underscore the need to actively screen for depression among psoriasis and psoriatic arthritis patients and closely monitor cardiovascular health in this high-risk group to improve long-term survival," declared Dr. Burns of the University of British Columbia, Vancouver.
She and her coinvestigators mined the comprehensive health records available for 4.1 million adults through British Columbia’s universal medical insurance coverage system in order to identify all 10,041 patients who were diagnosed with psoriasis by a dermatologist or psoriatic arthritis by a rheumatologist during 1996-2006, and who at that time had no history of MI. The patients were matched by age, gender, and years of follow-up with 47,415 controls.
Acute MI occurred in 268 patients with psoriasis or psoriatic arthritis, for an incidence rate of 5.8 cases per 1,000 person-years. The incidence rate of physician-diagnosed depression was 3.4 per 1,000 person-years in the psoriatic group, with a 10-year prevalence of 21.6%.
In a multivariate regression analysis adjusted for comorbid conditions, socioeconomic status, health resource utilization, age, and gender, individuals with psoriasis or psoriatic arthritis were 26% more likely to be depressed than controls. Diagnosis of depression in psoriatic patients during the follow-up period increased their risk of having an MI by an adjusted 80% compared with psoriatic patients without the psychiatric diagnosis.
Psoriatic subjects without depression had a statistically nonsignificant 10% increased risk of MI compared with nonpsoriatic controls. In contrast, psoriatic patients with diagnosed depression had a 60% greater MI risk than controls, according to Dr. Burns.
The study was funded by the Arthritis Research Center of Canada. Dr. Burns reported having no financial conflicts of interest.
AT THE ACR ANNUAL MEETING
Major finding: Patients with psoriasis or psoriatic arthritis who developed comorbid depression had a highly significant 80% increased risk of acute MI during follow-up, compared with those without depression.
Data source: This was a population-based cohort study involving 10,041 adults diagnosed with psoriasis or psoriatic arthritis in British Columbia during 1996-2006 and more than 47,000 controls.
Disclosures: The study was funded by the Arthritis Research Center of Canada. Dr. Burns reported having no financial conflicts of interest.