[Perceived stress in Mexican patients newly diagnosed with breast cancer].

Background: Cancer diagnosis has been described as a significant factor causing psychological stress, which may increase a vulnerability to develop psychological disorders, decrease quality of life levels and affect the response to cancer treatment.

Objective: To validate the Newly Diagnosed Breast Cancer Stress Scale (NDBCSS) and to explore the differences concerning clinical and sociodemographic variables.

Material And Methods: Cross-sectional study.