Correlations of social isolation and anxiety and depression symptoms among patients with breast cancer of Heilongjiang province in China: The mediating role of social support.

Social isolation was positively correlated with symptoms of anxiety and depression in patients with breast cancer, respectively. Social support for patients with breast cancer has a mediating effect on the patients' social isolation and symptoms of anxiety and depression. Therefore, the support of family, friends, hospitals, and organizations plays a positive role in reducing social isolation as well as symptoms of depression and anxiety in these patients.