A retrospective analysis of the factors associated with surgical checklist compliance using data from a local health unit in Italy, 2018-2021.

Checklist compliance in the LHU was 95%, with the presence of NCs in about 7% of surgeries. The factors that increased the RR were incompleteness of the checklist (adjusted RR = 3.12; 95% confidence interval [CI] = 2.86-3.40), urgent surgeries (adjusted RR [aRR] = 1.59; 95% CI = 1.47-1.72), emergencies (aRR = 2.09; 95% CI = 1.15-3.79), and surgeries with more than four procedures (aRR = 1.64; 95% CI = 1.41-1.92). Most notably, the RR for incomplete checklists showed a negative association with NCs before the COVID-19 outbreak but positive afterwards. Checklist compliance was overall satisfactory, though the observation of noncompliant checklists of about 1000 per year suggests there is still room for improvement. Moreover, attention to the checklist best practices and organization of outpatient workload may have been affected by the exceptional circumstances of the pandemic.