Pharmaceutically treated anxiety but not depression prior to cancer diagnosis predicts the onset of cardiovascular disease among breast cancer survivors

Dounya Schoormans, Lonneke van de Poll-Franse, Pauline Vissers, Myrthe P P van Herk-Sukel, Susanne S Pedersen, Nina Rottmann, Trine Horsbøl, Susanne Dalton, Johan Denollet

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PURPOSE: To examine the associations between pharmaceutically treated anxiety and depression present in the year prior to breast cancer diagnosis and the risk of incident cardiovascular disease (CVD), while controlling for traditional cardiovascular risk factors and clinical characteristics in a population-based observational study.

METHODS: Adult 1-year breast cancer survivors (n = 7227), diagnosed between 01-01-1999 and 12-31-2010, with no history of CVD, were selected from the Netherlands Cancer Registry. Drug dispensing data were derived from the PHARMO Database Network and used as proxy for CVD, anxiety, and depression. By multivariable Cox regression analysis, we examined the risk associated with pharmaceutically treated anxiety and depression for developing CVD after cancer diagnosis, adjusting for age, pharmaceutically treated hypertension, hypercholesterolemia, and diabetes mellitus in the year prior to cancer diagnosis, tumor stage, and cancer treatment.

RESULTS: During the 13-year follow-up period, 193 (3%) breast cancer survivors developed CVD. Women pharmaceutically treated for anxiety in the year prior to their cancer diagnosis had a 48% increased hazard for CVD [HR = 1.48; 95% CI 1.05-1.08] after full adjustment. This association was restricted to breast cancer survivors who were 65 years or younger. Depression was not associated with CVD risk [HR = 0.89; 95% CI 0.52-1.53]. Older age [HR = 1.06; 95% CI 1.05-1.08], hypertension [HR = 1.80; 95% CI 1.32-2.46], and hypercholesterolemia [HR = 1.63; 95% CI 1.15-2.33] were associated with an increased hazard for incident CVD, whereas hormone therapy [HR = 0.59; 95% CI 0.42-0.83] was protective.

CONCLUSIONS: Anxiety present in the year prior to breast cancer diagnosis increases the risk of incident CVD in 1-year breast cancer survivors, after adjustment for depression, traditional cardiovascular risk factors, and clinical characteristics.

OriginalsprogEngelsk
TidsskriftBreast Cancer Research and Treatment
Vol/bind166
Udgave nummer1
Sider (fra-til)259–266
ISSN0167-6806
DOI
StatusUdgivet - 2017

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