TY - JOUR T1 - The role of pretreatment squamous cell carcinoma antigen level in locally advanced squamous cell carcinoma of the uterine cervix treated by radiotherapy JF - International Journal of Gynecologic Cancer JO - Int J Gynecol Cancer SP - 1094 LP - 1100 DO - 10.1136/ijgc-00009577-200605000-00023 VL - 16 IS - 3 AU - I. Ogino AU - H. Nakayama AU - N. Okamoto AU - T. Kitamura AU - T. Inoue Y1 - 2006/04/01 UR - http://ijgc.bmj.com/content/16/3/1094.abstract N2 - The purpose of this study was to determine the pretreatment serum squamous cell carcinoma antigen (SCC-ag) level as a generally applicable measurement in predicting and estimating the treatment outcome of patients with locally advanced SCC of the cervix. Three hundred fifty-two patients with stage IIB–IVA SCC of the cervix were managed with both external irradiation and high–dose rate intracavitary brachytherapy. A significantly higher median SCC-ag was seen in association with increasing stage, tumor size, and lymph node involvement. The difference in disease-free survival (DFS) between stages IIB and III patients was not statistically significant with SCC-ag level <2 ng/mL. In multivariate analysis, median SCC-ag level (≥6.0 ng/mL) and lymph node metastases had significant independent effects on absolute survival and DFS. A direct linear relationship (y = −2.932x + 84.896) existed between the median SCC-ag of groups distributed by pretreatment prognostic factors and the 5-year DFS rate. The 5-year DFS rate as a function of SCC-ag level defined by cervix size, lymph node status, and hydronephrosis was obtained from a formula combining risk scores and the baseline survival function. From the obtained formulas, we can objectively estimate the treatment outcome in patients with locally advanced squamous cell cervical cancer. ER -