A tale of 2,000 charts: Measuring provider response to patient-reported outcome measures.

157Background: Patients undergoing cancer treatment often experience physical and psychosocial symptoms that go undetected by clinicians, which highlights the need to incorporate patient-reported outcome measures (PROMs) in routine care. Systematic symptom screening for cancer patients using the Edmonton Symptom Assessment System (ESAS) is standard practice in Ontario. However, provider response to PROMs is essential to addressing symptom burden. To measure provider response, Regional Cancer Centre (RCC) Leads and Cancer Care Ontario developed a chart audit process. The objective was to determine whether the clinical team acknowledged, assessed and/or addressed symptoms identified by ESAS screening. Methods: RCCs received a chart audit tool with preset options and a data dictionary. Sites audited at least 140 charts for seven of the ESAS symptoms. Sites used a business intelligence tool to access patient charts based on sampling parameters. RCCs were required to audit charts of patients whose ESAS symptom...