ABSTRACT
Objectives: This study aimed to evaluate gender-based disparities in preventable adverse events due to low-value practices (LVPs) in primary care. Methods: A retrospective cohort study in Alicante, Spain. Results: A total of 1,516 patient records were examined, finding that older individuals and women experienced more LVP-related events. Female patients faced a higher volume of such events than males with the same health issue. Interaction analysis revealed patients treated by male physicians had more severe events, while those attended by females experienced milder ones. Adverse events were more frequent in LVPs associated with gender-based reasons. Conclusion: These results highlight the need for tailored healthcare professional awareness programs on overuse's impact on safety. Addressing outcome differences between male and female patients should inform awareness campaigns.