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Signal Attenuation as a Rat Model of Obsessive Compulsive Disorder
Published on: January 9, 2015
Metabolic and Cardiovascular Complications in Obsessive-Compulsive Disorder: A Total Population, Sibling Comparison
Kayoko Isomura1, Gustaf Brander2, Zheng Chang3
1Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden.
Background:
Obsessive-compulsive disorder (OCD) is associated with increased mortality, but the causes of this increase are poorly understood. This study examined whether OCD is associated with an increased risk of metabolic and cardiovascular complications.
Methods:
Individuals diagnosed with OCD (n = 25,415) were identified from a cohort of 12,497,002 individuals living in Sweden between 1973 and 2013. Cox proportional hazard regression analyses were used to investigate the risk of metabolic and cardiovascular complications in OCD patients compared with the general population and unaffected full siblings of OCD individuals. Exploratory analyses were used to examine the effect of treatment with serotonin reuptake inhibitors, with or without antipsychotics, on the outcomes of interest.
Results:
Individuals with OCD had a higher risk of any metabolic or cardiovascular complications compared with the general population (adjusted hazard ratio = 1.45; 95% confidence interval = 1.42-1.49) and their unaffected full siblings (adjusted hazard ratio = 1.47; 95% confidence interval = 1.40-1.54). In the fully adjusted sibling comparison models, patients had higher risks of obesity, type 2 diabetes mellitus, and circulatory system diseases. The risks were already evident from the beginning of the follow-up period and remained largely unchanged when excluding different groups of psychiatric comorbidities. Compared with patients who were not taking serotonin reuptake inhibitors, patients taking higher doses of serotonin reuptake inhibitors and who had a longer duration of treatment had significantly lower risks of metabolic and cardiovascular complications, regardless of whether they were also taking antipsychotics.
Conclusions:
OCD is associated with an increased risk of metabolic and cardiovascular complications. Our results underscore the importance of carefully monitoring metabolic and cardiovascular health in patients with OCD early in the course of the disorder.
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