• Suyun Li, William Kwame Amakye, Zikuan Zhao, Xiaowei Xin, Ying Jia, Hui Zhang, Yuwei Ren, Yuxin Zhou, Lina Zhai, Weicong Kang, Xuemin Lu, Ji Guo, Min Wang, Yongzhao Xu, Junlin Yi, and Jiaoyan Ren.
• Department of Clinical Nutrition, National Cancer Hospital/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Science, Beijing, 100021, China.
• Nutrition. 2024 Oct 1; 126: 112520112520.

AbstractBody weight, body mass index (BMI), Nutrition Risk Screening 2002 (NRS2002), and prognostic nutritional index (PNI) are among vital nutrition status indices employed during cancer treatment. These have also been associated with levels of blood chemistry panels (BCPs), which are touted as significant indicators of disease prognosis. However, it remains unclear which nutrition status index better predicts future trends in specific BCPs. Using the records of 407 cancer patients, we retrospectively examined the potential of nutritional status indices at baseline for predicting changes in specific BCPs over a 6-week period. Generally, both serum biochemical parameters and nutrition status indices fluctuated over the study period among study participants. PNI was often linearly associated with blood cell counts (white blood cells [WBCs] and hemoglobin) compared with anthropometric-based nutrition status indices. Increase in body weight was protective against having abnormal lymphocyte levels at 6 weeks (odds ratio [OR]: 0.960-0.974; CI: 0.935-0.997; P < 0.05), while increase in baseline PNI was associated with 0.865-0.941 and 0.675-0.915 odds of having future abnormal WBC and lymphocyte levels, respectively. Increases in PNI were also protective against having future abnormal albumin levels (OR: 0.734-0.886) and 8.5-12.5% decreases in the odds of having an abnormal C-reactive protein level in subsequent visits. Changes in NRS2002 tended to be associated with the odds of having future abnormal blood glucose levels. In conclusion, the serum biochemistry-derived nutrition status index, PNI, is a more consistent measure as an early indicator to track the trends of future changes in the BCPs of cancer patients. This implies that PNI could be targeted as an early-warning measure with relevant preventive interventions for patients at risk of malnutrition.Copyright © 2024 Elsevier Inc. All rights reserved.

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