Ovarian cancer is a severe disease with a peak incidence in the older age groups where concurrent morbidity is common and could potentially influence mortality rates.
The aim was to study the influence of common comorbidity diagnoses on mortality in ovarian cancer patients.
The study population was patients with ovarian cancer in Sweden 1993-2006 (n=11.139) identified in the national Cancer Register. Comorbidity data was obtained from the Patient Register and mortality from Cause of Death Register. Mortality was analyzed with Cox' proportional hazards models and subgroup analyses were performed by age and tumor histology.
Almost all of the assessed comorbidities increased mortality in ovarian cancer patients. Thromboembolism was the most hazardous comorbidity (HR=1.95,