Table 1 Components of mixed methods process evaluation using RE-AIM Framework

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