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Abstract Title:

Suicide and cardiovascular death after a cancer diagnosis.

Abstract Source:

N Engl J Med. 2012 Apr 5 ;366(14):1310-8. PMID: 22475594

Abstract Author(s):

Fang Fang, Katja Fall, Murray A Mittleman, Pär Sparén, Weimin Ye, Hans-Olov Adami, Unnur Valdimarsdóttir

Article Affiliation:

Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. fang.fang@ki.se

Abstract:

BACKGROUND: Receiving a diagnosis of cancer is a traumatic experience that may trigger immediate adverse health consequences beyond the effects of the disease or treatment.

METHODS: Using Poisson and negative binomial regression models, we conducted a historical cohort study involving 6,073,240 Swedes to examine the associations between a cancer diagnosis and the immediate risk of suicide or death from cardiovascular causes from 1991 through 2006. To adjust for unmeasured confounders, we also performed a nested, self-matched case-crossover analysis among all patients with cancer who died from suicide or cardiovascular diseases in the cohort.

RESULTS: As compared with cancer-free persons, the relative risk of suicide among patients receiving a cancer diagnosis was 12.6 (95% confidence interval [CI], 8.6 to 17.8) during the first week (29 patients; incidence rate, 2.50 per 1000 person-years) and 3.1 (95% CI, 2.7 to 3.5) during the first year (260 patients; incidence rate, 0.60 per 1000 person-years). The relative risk of cardiovascular death after diagnosis was 5.6 (95% CI, 5.2 to 5.9) during the first week (1318 patients; incidence rate, 116.80 per 1000 person-years) and 3.3 (95% CI, 3.1 to 3.4) during the first 4 weeks (2641 patients; incidence rate, 65.81 per 1000 person-years). The risk elevations decreased rapidly during the first year after diagnosis. Increased risk was particularly prominent for cancers with a poor prognosis. The case-crossover analysis largely confirmed results from the main analysis.

CONCLUSIONS: In this large cohort study, patients who had recently received a cancer diagnosis had increased risks of both suicide and death from cardiovascular causes, as compared with cancer-free persons. (Funded by the Swedish Council for Working Life and Social Research and others.).

Study Type : Human Study
Additional Links
Anti Therapeutic Actions : Nocebo Effect : CK(103) : AC(13)

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