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09 Jan 2019
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Stress does not increase risk of breast cancer

17 May 2018
Breast cancer, if detected early, has a high 5-year survival rate. This underscores the importance of regular self-checks and clinical breast examination.

Stress does not appear to affect the risk of breast cancer, according to a recent study, which shows no link between acute and chronic stressors, optimism, anger control, antiemotionality or social support, and breast cancer.

Researchers performed a prospective cohort repeated measures study of 3,054 adult women (mean age 45.0 years), of whom 103 developed the primary outcome of breast cancer over the mean study duration of 7.2 years. Questionnaires and interviews were used to assess acute and chronic stressors, along with psychosocial variables, at baseline and at follow-ups every 3 years.

In the final Cox proportional hazards regression model, stressors were significantly associated with the risk of breast cancer. For instance, the number of mild-to-moderate (hazard ratio [HR], 1.05; 95 percent CI, 0.99–1.10; p=0.10) and high-to-severe (HR, 0.93; 0.73–1.19; p=0.57) acute stressors did not increase the risk of breast cancer.

The number of mild-to-moderate (HR, 1.00; 0.89–1.13; p=0.96) and high-to-severe (HR, 1.36; 0.91–2.04; p=0.13) chronic stressors were likewise unrelated to breast cancer development risk.

Similar trends were observed for psychosocial variables. Social support (HR, 1.00; 0.97–1.04; p=0.97), optimism (HR, 1.03; 0.98–1.08; p=0.23), antiemotionality (HR, 0.75; 0.49–1.14; p=0.17) and anger (HR, 1.00; 0.93–1.07; p=0.99) all showed null associations with breast cancer risk.

The findings suggest that women prioritize proven methods for breast cancer risk reduction, such as preventive surgery or medication and close monitoring.

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Most Read Articles
09 Jan 2019
Despite comparable efficacies, triamcinolone injections appear to be slightly superior over 5-fluorouracil injections for inducing keloid remission, a recent trial has found.
Jairia Dela Cruz, 5 days ago
Use of standard-dose aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs) appears to confer protection against the risk of endometrial cancer in overweight and obese women, according to a meta-analysis.
Tristan Manalac, 5 days ago
Less than 15 percent of Singaporean adolescents get the recommended 8–10 hours of sleep on a school night, reports a recent study, noting that such short sleep duration is linked to symptoms of depression, overweight or obesity, and poorer self-rated health.
04 Jan 2019
Obstructive sleep apnoea may increase the risk of male-pattern baldness in men with a family history of hair loss, and this association appears to be mediated by low serum transferrin saturation levels related to hypoxia, a study suggests.