A deficit-accumulation frailty index predicts survival outcomes in patients with gynecologic malignancy

Mary M. Mullen, Tyler R. McKinnish, Mark A. Fiala, Abigail S. Zamorano, Lindsay M. Kuroki, Katherine C. Fuh, Andrea R. Hagemann, Carolyn K. McCourt, David G. Mutch, Matthew A. Powell, Tanya M. Wildes, Premal H. Thaker

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1 Scopus citations

Abstract

Objective: To determine the association between scores from a 25-item patient-reported Rockwood Accumulation of Deficits Frailty Index (DAFI) and survival outcomes in gynecologic cancer patients. Methods: A frailty index was constructed from the SEER-MHOS database. The DAFI was applied to women age ≥ 65 diagnosed with all types of gynecologic cancers between 1998 and 2015. The impact of frailty status at cancer diagnosis on overall survival (OS) was analyzed using Kaplan-Meier curves and Cox proportional hazards regression. Results: In this cohort (n = 1336) the median age at diagnosis was 74 (range 65–97). Nine hundred sixty-two (72%) women were Caucasian and 132 (10%) were African-American. Overall, 651(49%) of patients were considered frail. On multivariate analysis, frail patients had a 48% increased risk for death (aHR 1.48; 95% CI 1.29–1.69; P < 0.0001). Each 10% increase in frailty index was associated with a 16% increased risk of death (aHR, 1.16; 95% CI, 1.11 to 1.21; P < 0.0001). In subgroup analyses of the varying cancer types, the association of frailty status with prognosis was fairly consistent (aHR 1.15–2.24). The DAFI was more prognostic in endometrial (aHR 1.76; 95% CI 1.41–2.18, P < 0.0001) and vaginal/vulvar (aHR 1.94; 95% CI 1.34–2.81, P = 0.0005) cancers as well as patients with loco-regional disease (aHR 1.94; 95% CI 1.62–2.33, P < 0.0001). Conclusions: Frailty appears to be a significant predictor of mortality in gynecologic cancer patients regardless of chronological age. This measure of functional age may be of particular utility in women with loco-regional disease only who otherwise would have a favorable prognosis.

Original languageEnglish
Pages (from-to)700-704
Number of pages5
JournalGynecologic oncology
Volume161
Issue number3
DOIs
StatePublished - Jun 2021

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