Frailty is a key risk factor for adverse outcomes among the increasingly large number of older patients presenting for surgery. The complexity and risk profile of frail patients makes them a population who may derive significant benefit from the multidisciplinary and continuous care provided by a Perioperative Surgical Home (PSH) model of care. Development of an evidence-based PSH for the frail elderly (PSH-Frail) is the overarching goal of the investigator's research program. However, the PSH-Frail is a complex intervention, and will require high quality evidence to support inclusion of specific processes and interventions into the overall framework.