Results
We identified a total of 1394 women with stage I epithelial ovarian
cancer. The median follow-up time for the cohort was 73 months. The
cohort included 477 patients with low-risk tumors, 754 patients with
high-risk early-stage tumors and 163 patients classified as unknown
risk. The clinical and demographic characteristics of the low-risk patients
are displayed (Table 1). Overall, 32.9% ofwomenwith low-risk tumors
received chemotherapy. Chemotherapy use increased over time
for low-risk patients from 29.4% (95% CI, 7.8–51.1%) in 1992 to 36.0%