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J Clin Oncol. 1989 Jun;7(6):769-73.

Predictability of the survival of patients with advanced ovarian cancer.

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  • 1Department of Medical Statistics, Leiden University, The Netherlands.


Based on material from two clinical trials performed by The Netherlands Joint Study Group for Ovarian Cancer, we constructed a prognostic index (PI) with considerable predictive power for long-term survival of patients treated with cytotoxic combination chemotherapy including cisplatin. The pretreatment characteristics needed for the calculation of the PI are the Karnofsky index, the site of metastases expressed as the International Federation of Gynecology and Obstetrics (FIGO) stage, the size of residual tumor, the Broders' grade, and the presence of ascites. In the subgroup comprising the 10% of the patients with the best prognosis, 4-year survival was 75%, whereas all of the patients in the subgroup comprising the 10% with the poorest prognosis died within 4 years, which illustrates the large variability of the prognosis among patients. The PI was found to retain its value after response was achieved. The information provided by the PI can be expected to be useful in treatment planning and for proper stratification of patients in clinical trials.

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