A forgotten disease: pelvic congestion syndrome as a cause of chronic lower abdominal pain.

Data from the medical records of the patients with dilated ovarian veins (OV) and the control group without dilated OV, including gynecological examinations available either in electronic medical records or matching paper-based gynecological files accessible within the hospital records. <br>PCS-associated symptoms of interest included chronic or recurrent abdominal, back and flank pain, dyspareunia, ovarian point tenderness on bimanual examination, urological symptoms (dysuria, urinary frequency, urgency, hematuria), and vulvar and lower extremity varicosities.<br>Demographic information was also collected: menopausal status, age, ethnicity, height, body mass index (BMI), blood group, gravidity, parity, birth weights of children, method of contraception, position of uterus (ante- or retroverted), smoking, alcohol consumption and signs of infection as measured in blood tests (CPR, leucocytes).

本数据集纳入卵巢静脉（Ovarian Veins, OV）扩张患者与无卵巢静脉扩张的对照组人群的临床病历资料，涵盖两类可获取的妇科检查资料：电子病历中的妇科检查结果，以及医院存档内可调取的匹配纸质妇科档案。
本研究关注的盆腔充血综合征（Pelvic Congestion Syndrome, PCS）相关症状包括：慢性或复发性腹部、腰背部及胁肋部疼痛，性交痛，双合诊检查下的卵巢点压痛，泌尿系统症状（排尿困难、尿频、尿急、血尿），以及外阴与下肢静脉曲张。
研究同时收集了以下人口统计学与临床基线信息：绝经状态、年龄、种族、身高、体质量指数（Body Mass Index, BMI）、血型、妊娠次数、分娩次数、子代出生体重、避孕方式、子宫位置（前倾或后倾）、吸烟与饮酒情况，以及血液检测评估的感染征象（C反应蛋白（C-reactive protein, CPR）、白细胞（Leucocytes））。