Registration is open for two AHRQ online open forums on how to harmonize patient registry outcome performance measures using AHRQ’s Outcome Measures Framework. The forums are scheduled on Dec.13 from 1 to 2:30 p.m. ET and Dec. 15 from 12 to 1:30 p.m. ET. Comparing, aggregating and reporting clinical care data can be difficult due to variations in the types and definitions of outcome measures used in patient registries. AHRQ’s Outcome Measures Framework is a generic content model for developing harmonized outcome performance measures in specific disease areas to reduce these variations. AHRQ is assessing the feasibility of using the framework to develop standardized libraries of outcome measures for five conditions. Forum participants will be asked for input on the planned approach for harmonization, dissemination of libraries of outcome measures and their use in new research. Contact RoPR@ahrq.hhs.gov with questions.