Complexity of care among pediatric patients in acute care settings: A systematic integrative review.

BACKGROUND: The concept of complexity of care is well established in scientific literature; however, in pediatric populations, research has primarily focused on medical aspects, lacking a comprehensive approach that includes additional influencing factors. PURPOSE: This study aimed to identify the evidence on complexity of care among pediatric patients attending pediatric acute care settings. METHODS: An integrative review was conducted the PRISMA guidelines (PROSPERO registration: CRD42023469426). The search included articles published up to July 2025 in PubMed, CINHAL, Scopus, and WOS. Both the quality and internal validity of the studies included were independently assessed by two reviewers. RESULTS: Twenty-two articles were analysed, identifying 48 complexity-related factors and 39 assessment scales. Findings were grouped into four thematic categories, within each of which the following key complexity factors were identified: A) Clinical aspects of pediatric patients, such as diagnosis, patient type, and clinical stability; B) Environmental factors, particularly family involvement; C) Care provider aspects, such as direct/indirect nursing activities and workload; D) Organisational elements, especially nursing staff experience. CONCLUSIONS AND IMPLICATIONS: This review expands the understanding of complexity beyond patient pathology. It underscores the need for further research to explore healthcare professionals' perceptions of complexity and examine how the identified factors influence health outcomes. Developing integrated assessment tools may enhance care planning and resource allocation in pediatric settings.