7-point Subjective Global Assessment is more time sensitive than conventional Subjective Global Assessment in detecting nutrition changes

Lim, Su Lin, Lin, Xiang Hui, & Daniels, Lynne (2016) 7-point Subjective Global Assessment is more time sensitive than conventional Subjective Global Assessment in detecting nutrition changes. Journal of Parenteral and Enteral Nutrition, 40(7), pp. 966-972.

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  • It is important for nutrition intervention in malnourished patients to be guided by accurate evaluation and detection of small changes in the patient’s nutrition status over time. However, the current Subjective Global Assessment (SGA) is not able to detect changes in a short period of time. The aim of the study was to determine whether 7-point SGA is more time sensitive to nutrition changes than the conventional SGA.


  • In this prospective study, 67 adult inpatients assessed as malnourished using both the 7-point SGA and conventional SGA were recruited. Each patient received nutrition intervention and was followed up post-discharge. Patients were reassessed using both tools at 1, 3 and 5 months from baseline assessment.


  • It took significantly shorter time to see a one-point change using 7-point SGA compared to conventional SGA (median: 1 month vs. 3 months, p = 0.002). The likelihood of at least a one-point change is 6.74 times greater in 7-point SGA compared to conventional SGA after controlling for age, gender and medical specialties (odds ratio = 6.74, 95% CI 2.88-15.80, p<0.001). Fifty-six percent of patients who had no change in SGA score had changes detected using 7-point SGA. The level of agreement was 100% (k = 1, p < 0.001) between 7-point SGA and 3-point SGA and 83% (k=0.726, p<0.001) between two blinded assessors for 7-point SGA.


  • The 7-point SGA is more time sensitive in its response to nutrition changes than conventional SGA. It can be used to guide nutrition intervention for patients.

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ID Code: 83225
Item Type: Journal Article
Refereed: Yes
Keywords: 7-point Subjective Global Assessment, Nutrition status, Malnutrition, Nutrition changes, Intervention
DOI: 10.1177/0148607115579938
ISSN: 0148-6071
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2015 American Society for Parenteral and Enteral Nutrition
Deposited On: 08 Apr 2015 23:24
Last Modified: 26 Sep 2016 05:07

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