Advanced Clinical Stage at Diagnosis of Breast Cancer Is Associated with Poorer Health-Related Quality of Life: A Cross-Sectional Study.

OBJECTIVE: To describe the clinical stage in women diagnosed with breast cancer and the association between clinical stage and Health-related quality of life (HRQoL). MATERIALS AND METHODS: This was a cross-sectional study involving women diagnosed with breast cancer. HRQoL was assessed with European Organization for Research and Treatment of Cancer 30-Item Quality of Life Questionnaire and the Quality of Life Questionnaire Breast Cancer 23. The principal exposure was clinical stage (