Objective To comparatively analyze risk factors that influence the postoperative recurrence and distant metastasis between Xinjiang Uygur and Han women with breast cancer. Methods The clinical data of Han and Uyghur women with diagnosis of breast cancer at Ⅰ-Ⅲ period were completely collected for retrospective analysis. Then logistic regression (univariate and multivariate) was performed for analyzing the risk factors that influenced recurrence and metastasis. Results A total of 728 patients were included. The recurrence and metastasis rates among Uyghur and Han patients 3 years after surgery were 28.4%, 9.8%, respectively, including local recurrence[11 Uyghur cases (6.5%) and 9 Han cases (1.6%)] and distant metastasis[37 Uyghur cases (21.8%) and 45 Han cases (8.0%)]. Significant differences were found between the two groups in tumour size and time from symptom occurrence to clinical visits (P<0.05). Pathological type, tumour size, axillary lymph node metastasis, clinical stage, ER and PR expression, and whether to accept a regular postoperative adjuvant therapy were associated with the recurrence and metastasis rate among the patients with breast cancer at Ⅰ-Ⅲ period (P<0.05). The results of multivariate logistic regression analysis showed that, the recurrence and metastasis rate of Uyghur patients was higher than that of Han patients with a significant difference (P<0.01). Pathological type, tumour size, and axillary lymph node metastasis number were the risk factors used to predict postoperative recurrence and metastasis among Uygur and Han patients; while ER positive expression, adjuvant radiation and postoperative chemotherapy were protective factors. Conclusion The recurrence and metastasis rate of Uyghur patients with breast cancer is higher than that of Han patients. Pathological type, tumour size, and axillary lymph node metastasis number are the risk factors of postoperative recurrence and distant metastasis; while ER positive expression, adjuvant radiation and postoperative chemotherapy may inhibit the recurrence and distant metastasis of breast cancer.

Citation： LVWei-wei, LIUChun-sheng, MABin-lin, AliBiyaTi·Aini. Risk Factors of Recurrence and Metastasis between Xinjiang Uygur and Han Women with Breast Cancer: A Comparative Analysis. Chinese Journal of Evidence-Based Medicine, 2015, 15(1): 8-11. doi: 10.7507/1672-2531.20150004 Copy