To run the search, copy/paste this into PubMed: 

(((“patient discharge” OR “patient discharge”[MeSH] and (decision making OR “Decision Support Techniques”[Mesh])))) AND (“Outcome and Process Assessment (Health Care)”[Mesh] OR length of stay)

Selected articles include:

Coudeyre, E, et al. “Transcultural validation of the Risk Assessment and Predictor Tool (RAPT) to predict discharge outcomes after total hip replacement.” Annals of physical and rehabilitation medicine 57.3 (2014):169-84.

Hansen, Viktor J, et al. “Does the Risk Assessment and Prediction Tool predict discharge disposition after joint replacement?.” Clinical orthopaedics and related research 473.2 (2015):597-601.

Holland, Diane E, et al. “Developing and testing a discharge planning decision support tool for hospitalized pediatric patients.” Journal for specialists in pediatric nursing 19.2 (2014):149-61.