4.6 Article

Paper Conditional estimates for uterine serous cancer: Tools for survivorship counseling and planning

期刊

GYNECOLOGIC ONCOLOGY
卷 166, 期 1, 页码 90-99

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygyno.2022.05.013

关键词

Endometrial cancer; Uterine serous carcinoma; Conditional survival; Standardized mortality risk; Survivorship; NCDB

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This study aims to develop conditional survival and risk-assessment estimates for uterine serous carcinoma (USC) to provide tools for annual survivorship counseling and care planning. The results showed that five-year survival rates increased with higher stages and longer follow-up, while the standardized mortality ratio decreased. Differences in the risk of death were observed between diagnosis and after surviving 5 years.
Objectives. Develop conditional survival and risk-assessment estimates for uterine serous carcinoma (USC) overall and stratified by stage as tools for annual survivorship counseling and care planning. Methods. Patients in the National Cancer Data Base diagnosed between 2004 and 2014 with stage I-IV USC were eligible. Individuals missing stage or survival data or with multiple malignancies were excluded. Fiveyear conditional survival was estimated using the stage-stratified Kaplan-Meier method annually during follow-up. A standardized mortality ratio (SMR) estimated the proportion of observed to expected deaths in the U.S. adjusted for year, age, and race. The relationships between prognostic factors and survival were studied using multivariate Cox modeling at diagnosis and conditioned on surviving 5-years. Results. There were 14,575 participants, including 43% with stage I, 8% with stage II, 29% with stage III, and 20% with stage IV USC. Five-year survival at diagnosis vs. after surviving 5-years was 52% vs. 75% overall, 77% vs. 81% for stage I, 57% vs. 72% for stage II, 40% vs. 66% for stage III, and 17% vs. 60% for stage IV USC, respectively (P < 0.0001). Incremental improvements in 5-year conditional survival and reductions in SMR tracked with annual follow-up and higher stage. The adjusted risk of death at diagnosis vs. after surviving 5-years was 1.15 vs. 1.40 per 5-year increase of age, 1.26 vs. 1.68 for Medicaid insurance, 3.92 vs. 2.48 for stage III disease, and 6.65 vs. 2.79 for stage IV disease, respectively (P < 0.0001).

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