Document Type: Research Articles
Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand.
Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Background: The Scored Patient-Generated Subjective Global Assessment (PG-SGA) is a multidimensional tool
to assess malnutrition and risk factors. The objectives of this study are to determine the validity of the Thai version of
the Scored PG-SGA (Thai PG-SGA) and examine the correlations with selected nutritional parameters. Methods: This
observational analytic study included 195 cancer patients aged greater than 18 years at a university-affiliated hospital in
Bangkok, Thailand. All patients were assessed for nutritional status by Thai PG-SGA in comparison to subjective global
assessment (SGA). Anthropometry, body composition, and hand grip strength were evaluated. Results: According to
PG-SGA global assessment categories, 39% (75) of 195 cancer patients were well nourished, 27% (53) were moderately
malnourished and 34% (67) of patients were severely malnourished. Thai PG-SGA had a sensitivity of 99.1% and a
specificity of 86.0% at predicting SGA classification. PG-SGA numerical scores were significantly different between
well-nourished and malnourished groups (4.2 ± 2.4 Vs 16.3 ± 4.9; p < 0.001). The PG-SGA scores, nutritional status
assessed by PG-SGA, and nutritional status assessed by SGA were correlated with weight, % weight loss in one month,
body mass index, body fat, and hand grip strength (p < 0.001) respectively. Conclusions: Thai PG-SGA showed high
sensitivity and good specificity in predicting malnutrition in Thai cancer patients. This tool demonstrated the correlations
with anthropometric parameters, body composition, and muscle strength.