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Immediate risk of suicide and cardiovascular death after a prostate cancer diagnosis: cohort study in the United States
Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Department of Health Care Policy, Harvard Medical School, Boston, USA; Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, USA.
Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA; Department of Epidemiology, Harvard School of Public Health, Boston, USA; Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Department of Nutrition, Harvard School of Public Health, Boston, USA.
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Epidemiology, Harvard School of Public Health, Boston, USA; Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavík, Iceland .
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2010 (English)In: Journal of the National Cancer Institute, ISSN 0027-8874, E-ISSN 1460-2105, Vol. 102, no 5, p. 307-14Article in journal (Refereed) Published
Abstract [en]

Background: Receiving a cancer diagnosis is a stressful event that may increase risks of suicide and cardiovascular death, especially soon after diagnosis.

Methods: We conducted a cohort study of 342,497 patients diagnosed with prostate cancer from January 1, 1979, through December 31, 2004, in the Surveillance, Epidemiology, and End Results Program. Follow-up started from the date of prostate cancer diagnosis to the end of first 12 calendar months after diagnosis. The relative risks of suicide and cardiovascular death were calculated as standardized mortality ratios (SMRs) comparing corresponding incidences among prostate cancer patients with those of the general US male population, with adjustment for age, calendar period, and state of residence. We compared risks in the first year and months after a prostate cancer diagnosis. The analyses were further stratified by calendar period at diagnosis, tumor characteristics, and other variables.

Results: During follow-up, 148 men died of suicide (mortality rate = 0.5 per 1000 person-years) and 6845 died of cardiovascular diseases (mortality rate = 21.8 per 1000 person-years). Patients with prostate cancer were at increased risk of suicide during the first year (SMR = 1.4, 95% confidence interval [CI] = 1.2 to 1.6), especially during the first 3 months (SMR = 1.9, 95% CI = 1.4 to 2.6), after diagnosis. The elevated risk was apparent in pre-prostate-specific antigen (PSA) (1979-1986) and peri-PSA (1987-1992) eras but not since PSA testing has been widespread (1993-2004). The risk of cardiovascular death was slightly elevated during the first year (SMR = 1.09, 95% CI = 1.06 to 1.12), with the highest risk in the first month (SMR = 2.05, 95% CI = 1.89 to 2.22), after diagnosis. The first-month risk was statistically significantly elevated during the entire study period, and the risk was higher for patients with metastatic tumors (SMR = 3.22, 95% CI = 2.68 to 3.84) than for those with local or regional tumors (SMR = 1.57, 95% CI = 1.42 to 1.74).

Conclusion: A diagnosis of prostate cancer may increase the immediate risks of suicide and cardiovascular death.

Place, publisher, year, edition, pages
New York, USA: Elsevier, 2010. Vol. 102, no 5, p. 307-14
National Category
Medical and Health Sciences Cancer and Oncology
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URN: urn:nbn:se:oru:diva-41453DOI: 10.1093/jnci/djp537ISI: 000275254600008PubMedID: 20124521Scopus ID: 2-s2.0-77749292154OAI: oai:DiVA.org:oru-41453DiVA, id: diva2:811699
Available from: 2015-05-12 Created: 2015-01-14 Last updated: 2018-09-06Bibliographically approved

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