Researchers investigated surgical checklist intervention to reduce infection rates and unplanned OR returns. How did this intervention affect outcomes?

This choice implies that the p-value related to OR returns showed no significant effect, which contradicts the findings of the study. If the intervention had no impact on OR returns, the p-value would not support a conclusion of significance, allowing for a misinterpretation of the results regarding the checklist's efficacy.

This option incorrectly suggests that the checklist intervention worsened infection rates. In fact, the study demonstrated a positive impact, highlighting the effectiveness of the checklist in reducing infection occurrences. A negative impact would have been reflected in an increase in infection rates, which is not supported by the data.

Choosing this option suggests that the surgical checklist had no effect on infection rates or OR returns, which contradicts the evidence presented in the research. The study clearly indicates significant positive outcomes, thus demonstrating that the intervention was beneficial.