Prognostic Nutritional Index and Cancer Prognostic Outcomes: An Umbrella Review of Systematic Reviews and Meta-analyses of Observational Studies.
Li Zhi-Tong, Sun Ming-Li, Liu Fang-Hua, +25 more·Advances in nutrition (Bethesda, Md.)
Prognostic nutritional index (PNI) has been widely investigated as a predictor of outcomes in patients with cancer; however, a comprehensive synthesis evaluating the breadth, methodological quality, and certainty of this evidence is lacking. We aimed to systematically review and critically appraise existing meta-analys…