The validity of the Patient-Generated Subjective Global Assessment Short-form© in cancer patients undergoing chemotherapy

Background & aims: The high prevalence of malnourished cancer patients highlights the importance of sensitive and specific tools for nutritional risk and status assessment screening, namely the Patient-Generated Subjective Global Assessment (PG-SGA (R)). This study aimed to assess whether the short-form version of the PG-SGA (R) (PG-SGA (c) SF) would be appropriate to identify the nutritional risk of patients when compared with the final global score of PG-SGA (c) (long-form version). Methods: This transversal and observational study comprised a convenience sample of cancer patients undergoing chemotherapy at the Champalimaud Clinical Centre between December 2016 and February 2018. Clinical data and anthropometric parameters were collected in order to apply PG-SGA (R) and PG-SGA (c) SF. The data was statistically analysed through SPSS version 22 (SPSS Inc, Chicago, IL, USA). Results: In this study 355 patients were enrolled and PG-SGA (c) SF results showed that 69.3% (n = 246) of the population presented at least one risk factor for malnourishment (Sigma (box A) >= 1). Additionally, PG-SGA (R) revealed that 50% of patients (n = 177) have a risk of developing malnourishment or are already malnourished (B and C classification). The concordance of results showed to be high (coefficient k = 0.62; p < 0.001), meaning that PG-SGA SF (c) has a good sensibility (95%) and specificity (67%) for the identification of nutritional risk and assessment of nutritional status when compared with the complete version of PG-SGA (c). Conclusions: According to our results, PG-SGA (c) SF is a useful and sufficient tool, representing an easier and faster way to identify at-risk or malnourished patients. (C) 2021 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.