Is older age a poor prognostic factor in stage I and II endometrioid endometrial adenocarcinoma?

Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Cedars-Sinai Women's Cancer Research Institute, Los Angeles, CA 90048, USA.
Gynecologic Oncology (Impact Factor: 3.77). 02/2011; 120(2):189-92. DOI: 10.1016/j.ygyno.2010.10.038
Source: PubMed

ABSTRACT Prior studies have shown that age ≥70 years is associated with more aggressive non-endometrioid histology and worse survival in endometrial cancer. The purpose of this study is to assess if age is an independent poor prognostic factor in endometrioid histologies.
Under an IRB-approved protocol, we identified patients with surgical stage I to II endometrioid endometrial adenocarcinoma from 1995 to 2008 at two institutions. Patients were divided into two groups based on age at diagnosis: Group A (age 50-69 years) and Group B (age≥70 years). All patients underwent hysterectomy, bilateral salpingoophorectomy, +/-pelvic/aortic lymphadenectomy and adjuvant therapy. Prognostic factors were evaluated by univariate and multivariate analyses.
We identified 338 patients with stage IA to IIB endometrioid endometrial adenocarcinoma. The median age in Group A was 59 years (range 50-69) and Group B was 75 years (range 70-92). Patients in Group B were more likely to have hypertension (51% vs. 68%, p=0.006) and coronary artery disease (9% vs. 18%, p=0.03). There were no differences in progression-free or disease-specific survival, however, Group B had a worse overall survival (OS) (50.1 vs. 62.6 months, p=0.03). On univariate analysis, age (p=0.04), grade (p=0.006), and coronary artery disease (p=0.01) were associated with worse OS. After adjusting for grade and coronary artery disease, age was no longer a significant variable for OS (p=0.17).
After adjusting for other poor prognostic factors, age ≥70 years alone may not be a significant variable affecting overall survival in patients with early stage endometrioid endometrial adenocarcinoma.

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