Aim: To evaluate preoperative levels of CA-125 and HE4 in patients with endometriosis-like symptoms and to construct diagnostic models.
Patients: Prospective case-control study included 124 endometriosis patients and 97 control patients.
Materials & methods: Logistic regression was used to construct diagnostic models based on serum biomarker levels and clinical data.
Results: A model with CA-125, BMI, information on cysts and dyspareunia had an area under the curve value of 0.836, sensitivity of 74.0% and specificity of 81.3%. The second model included CA-125, BMI, information on cysts and dysmenorrhea and had an area under the curve value of 0.819, sensitivity of 74.8% and specificity of 79.2%.
Conclusion: Constructed models have the potential for noninvasive diagnosis of endometriosis, and might be translated into clinical practice after additional validation.
Keywords: CA-125; HE4; diagnostic algorithm; endometriosis; fallopian tubes; logistic regression; ovarian cysts.