Positive deviance involves an intentional act of breaking the rules in order to serve the greater good. For nurses, the rightness or wrongness of such actions will be judged by other people who are in charge of rules enforcement; but the decision to engage in positive deviance lies solely with the nurse. There is no uniform or consistent definition of positive deviance. This article uses the Walker and Avant method of concept analysis to explore and identify the essence of the term positive deviance in the nursing practice environment, provide a better understanding of the concept, and clarify its meaning for the nursing profession. In turn this led to an operational definition: positive deviance is intentional and honorable behavior that departs or differs from an established norm; contains elements of innovation, creativity, adaptability, or a combination thereof; and involves risk for the nurse. The concept of positive deviance is useful, offering nurses a basis for decision making when the normal, expected actions collide with the nurse's view of the right thing to do.

Objective We systematically reviewed the literature on paediatric frequent emergency department (ED) users to identify and to synthesize characteristics and factors associated with frequent ED utilization among this population in the United States. Methods We searched Medline (Ovid), CINAHL (Ebsco), and Embase (Ovid) to identify all relevant studies after 1990. We focused on US studies analysing paediatric frequent ED (PFED) users excluding those focused on specific subgroups. Two reviewers independently selected articles and extracted data on predisposing, enabling, behavioural, need and reinforcing factors. Results Fifteen studies met the inclusion criteria. PFED users comprised 3% to 14% of all paediatric ED users and accounted for 9% to 42% of all paediatric ED visits in 11 studies that defined frequent use as four to six ED visits per year. Most PFED users were less than 5 years old who had public insurance coverage and a regular provider. Public insurance compared to private residency in disadvantaged areas, having at least one chronic or complex condition and a history of hospitalization, were associated with frequent use. Children who had a regular primary care provider were less likely to exhibit frequent ED use. Conclusions Minimizing unnecessary ED visits by frequent utilizers is a quality improvement and cost‐saving priority for health systems. Our findings indicate that many PFED users have greater healthcare needs and face barriers accessing care in a timely manner, even though some have regular providers. To better address the needs of this vulnerable group, health systems should focus on educating caregivers and expanding access to providers in other settings.

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