Table 1.

Components of mixed methods process evaluation using RE-AIM Framework

Domain and definition	Approach
Reach: the % and characteristics of children eligible for the direct admission intervention who were admitted via this approach	Monthly reports to primary care practices reporting the number and % of eligible children admitted via direct admission; quarterly reports displaying clinical and sociodemographic characteristics of children admitted directly compared to those admitted via the ED
Efficacy: consideration of positive and negative outcomes of the intervention	Quarterly reports to primary care practices of primary and secondary study outcomes
Adoption: barriers to and facilitators of adopting this intervention	Qualitative interviews with key stakeholders will focus on (i) experience with the direct admission intervention and (ii) barriers to and facilitators of (a) referral for direct admission, (b) delivery of the intervention, including adherence to core components, (c) provision of timely and patient-centered care, and d) assurance of patient safety
Implementation: the extent to which the intervention is delivered as intended	Qualitative interviews with stakeholders, and quarterly meetings of the Direct Admission Leadership Teams to discuss barriers to and facilitators of adherence to intervention
Maintenance: the extent to which the intervention is sustained over time	Monthly reports to primary care practices regarding the number and % of eligible children admitted via direct admission, demonstrating changes over time