RESUMO
Purpose:To investigate the survival and prognostic factors in patients with stage Ib～IIb node-negative cervical carcinoma.Methods:From Nov.1993 to Dec. 1997,236 patients who had radical hysterectomy and pelvic lymphadenectomy and pelvic lymph node found negative were reviewed retrospectively. Survival rates were calculated by Kaplan-Meier method with differences in survival estimated by Log-rank test. Independent prognostic factors were identified by the Cox's proportional-hazards regression model. Results:The overall 5-year survival of the patients was 82.0% and the median survival time was 100.0 months. The recurrence and/or metastatic rate was 19.5%. Of these patients the 5-year survival rate was 16.9% and median survival time was 15.0 months. Among the variables,clinical stage(Ⅱb),tumor size(≥4 cm),histological type (non-squamous carcinoma),poor differentiation,deep stromal invasion,parametrial extension,vaginal margin involved,and lymphvascular permeation were the poor prognostic factors in univariate survival analysis ( P