Morbidity and mortality among patients with breast cancer receiving anticancer treatment before and during the COVID-19 pandemic: A single tertiary center experience.

Breast cancer is the most common cancer type in women in Saudi Arabia (SA). Globally, cancer treatment has been affected by the recent COVID-19 pandemic. The present retrospective study reviews the 30-day morbidity and mortality rates of patients with breast cancer receiving anticancer systemic treatment before (group1) and during the peak of the COVID-19 (group 2) pandemic at a tertiary center, King Abdulaziz University Hospital (Jeddah, SA).