Association between adenomyosis subtypes and concurrent endometrial lesions: a propensity score-matched retrospective study
By
Xiaoxi Niu
Yiyi Wang
Yijie Zhai
Yunyan Teng
Zhaogang Dong
Lijie Wang
May 29, 2026
Objective: To evaluate the association of the diffuse adenomyosis phenotype with the risk of co-existing endometrial lesions using propensity score matching.
Key Findings: The overall incidence of endometrial lesions was significantly higher in the diffuse adenomyosis group (49.5%) compared to the focal group (35.6%). After matching, diffuse adenomyosis was a significant risk factor for concurrent endometrial lesions (adjusted odds ratio = 2.05). A marginal interaction for age was observed, with a stronger association in women aged ≤45 years. Interpretation:
Limitations: The study is retrospective, which may introduce biases. The sample size for subgroup analyses may limit the generalizability of findings. Conclusion: