Effect of implementing an anesthesia nurse checklist in a safety and teamwork climate: quasi-experimental study.

The study lacked a control group and randomization, making it difficult to attribute changes solely to the checklist. Data was collected from a single private hospital in Brazil, limiting generalizability to other healthcare settings. The six-month intervention period may be too short to capture long-term changes in safety culture, as adherence to new standards often takes longer to stabilize. The participants were staff members, not patients, so the outcomes reflect perceptions of safety rather than actual clinical adverse events or patient outcomes.

The study was approved by the Ethics and Research Committee of the USP School of Nursing. No specific funding sources or commercial conflicts of interest are explicitly declared in the provided text.

Do not interpret the improved survey scores as evidence that the checklist reduced actual patient adverse events or mortality. The study measured staff perceptions of safety and teamwork, not clinical outcomes, and the lack of a control group means other factors could have influenced these perceptions.