Tools used to measure the impact of comorbidities on surgical outcomes in children with complex chronic conditions: A scoping review.

AIM: To identify and describe assessment tools used to measure the impact of comorbidities on postoperative outcomes in children with complex chronic conditions (CCC).

METHOD: This was a scoping review using five electronic databases. The search was conducted in March 2022 by a medical librarian. There were no date or language restrictions. Included studies were full-text articles published in peer-reviewed journals that described a tool used to measure the impact of comorbidities in children with CCC to assess postoperative outcomes. A standardized data charting tool was used.

RESULTS: A total of 2157 articles were retrieved. Five studies reporting on six comorbidity measures met inclusion criteria. All were cohort studies and were secondary analyses of data from an administrative database (n = 4) or a patient registry (n = 1). Sample sizes ranged from 645 to 25 747 participants. One paper described the assessment of reliability. Only one form of validity - predictive validity - was assessed in three papers for five measures.

INTERPRETATION: Findings from this scoping review revealed a paucity of comorbidity assessment tools validated for use with children with CCC; significant conceptual and measurement challenges exist in the current scientific literature.