• Amanda F Petrik, Beverly Green, Jennifer Schneider, Edward J Miech, Jennifer Coury, Sally Retecki, and Gloria D Coronado.
• Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA. Amanda.f.petrik@kpchr.org.
• J Gen Intern Med. 2020 Nov 1; 35 (Suppl 2): 815-822.

BackgroundEvidence-based programs such as mailed fecal immunochemical test (FIT) outreach can only affect health outcomes if they can be successfully implemented. However, attempts to implement programs are often limited by organizational-level factors.ObjectivesAs part of the Strategies and Opportunities to Stop Colon Cancer in Priority Populations (STOP CRC) pragmatic trial, we evaluated how organizational factors impacted the extent to which health centers implemented a mailed FIT outreach program.DesignEight health centers participated in STOP CRC. The intervention consisted of customized electronic health record tools and clinical staff training to facilitate mailing of an introduction letter, FIT kit, and reminder letter. Health centers had flexibility in how they delivered the program.Main MeasuresWe categorized the health centers' level of implementation based on the proportion of eligible patients who were mailed a FIT kit, and applied configurational comparative methods to identify combinations of relevant organizational-level and program-level factors that distinguished among high, medium, and low implementing health centers. The factors were categorized according to the Consolidated Framework for Implementation Research model.Key ResultsFIT tests were mailed to 21.0-81.7% of eligible participants at each health center. We identified a two-factor solution that distinguished among levels of implementation with 100% consistency and 100% coverage. The factors were having a centralized implementation team (inner setting) and mailing the introduction letter in advance of the FIT kit (intervention characteristics). Health centers with high levels of implementation had the joint presence of both factors. In health centers with medium levels of implementation, only one factor was present. Health centers with low levels of implementation had neither factor present.ConclusionsFull implementation of the STOP CRC intervention relied on a centralized implementation team with dedicated staffing time, and the advance mailing of an introduction letter.Trial RegistrationClinicalTrials.gov Identifier: NCT01742065 Registered 05 December 2012-Prospectively registered.

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