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ABSTRACT
Ovarian cancer is a chronic disease with a risk of malnutrition. Nutritional Risk Index (NRI) has been reported as a simple and accurate tool to assess the nutritional status. We sought to explore the prevalence of malnutrition and its association with survival in ovarian cancer. A retrospective study was conducted in 213 advanced ovarian cancer patients. NRI was calculated before and at the end of treatment using patients’ body weight and serum albumin level. Overall survival (OS) and progression-free survival (PFS) were estimated by Kaplan-Meier method, and associations were assessed using a Cox proportional hazards analysis adjusted for known prognostic variables. Moderate to severely malnourished patients had lower 5-yr OS (45.3%) compared to normal to mild group (64.0%), respectively (P = 0.024). Adjusted for covariates, the relative risk of death was 5.8 times higher in moderate/severely malnourished group identified at the last course of chemotherapy (HR = 5.896, 95% CI = 2.723-12.764, P < 0.001). Similarly, this cohort had shorter PFS compared with normal to mild risk group (median 15 vs. 28 months, P = 0.011). Malnutrition is prevalent among ovarian cancer patients and is found to be a significant predictor for mortality.
Conflict of interest
All authors declare that there are no conflicts of interest.
Funding
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2015R1A2A2A01008162; NRF-2012R1A1A2040271).