Abstract
e19626 Background: It is important to identify cancer patients (pts) who are at risk for malnutrition as many pts experience an array of nutritional problems which can impact upon their treatment plan and quality of life. This requires using an easy and reliable screening tool such as the MST or the scored PG-SGA. The scored PG-SGA is a more extensive tool consisting of a patient (pt) - generated section identifying symptoms that can impact on nutritional status. It also includes a second part consisting a pt’s physical examination. Both sections are summed to give an overall PG-SGA score. We hypothesized that the PG-SGA‘s pt-generated part alone, could be a comparable screening tool to the MST. Methods: We performed a prospective analysis from our out-patient pulmonary oncology clinic between July 1, 2010 to January 1, 2012 on non-small cell lung cancer (NSCLC) pts at various times in their cancer trajectory and used the MST as the gold standard. Pts were asked the MST’s questions by an oncology dietitian and completed the pt - generated part of the PG-SGA. Cut off points of ≥ 2 for the MST and ≥ 4 for the PG-SGA ( pt-generated part) were used to identify pts at risk for malnutrition. Results: 144 pts with NSCLC (72 male, 72 female, aged 67 ± 11 years) completed the questionnaires. Sixty-nine percent (99/144) had advanced disease. Fifty-six percent (81/144) of pts had a score ≥ 2 on the MST and 70 % (101/144) pts had a score ≥ 4 on the PG-SGA ( pt generated part). In 114 cases, the MST and PG-SGA scores were congruent: 76 were true positive and 38 were true negative. And in 30 cases the scores were discordant: 25 were false positive and 5 were false negative. The PG-SGA had a sensitivity of 94 % and a specificity of 60% in comparison to the MST. Conclusions: The pt-generated part of the PG-SGA alone had a sensitivity of 94% when compared to the MST. This tool could be used to screen for malnutrition risk in NSCLC pts attending an out-patient oncology clinic.
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