Validity and reliability of nutrition screening administered by nurses

Lim, Su Lin, Ang, Emily, Foo, Yet Li, Ng, Lian Ye, Tong, Chung Yan, Ferguson, Maree, & Daniels, Lynne (2013) Validity and reliability of nutrition screening administered by nurses. Nutrition in Clinical Practice.

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Abstract

Background: Nutrition screening is usually administered by nurses. However, most studies on nutrition screening tools have not used nurses to validate the tools. The 3-Minute Nutrition Screening (3-MinNS) assesses weight loss, dietary intake and muscle wastage, with the composite score of each used to determine risk of malnutrition. The aim of the study was to determine the validity and reliability of 3-MinNS administered by nurses, who are the intended assessors.

Methods: In this cross sectional study, three ward-based nurses screened 121 patients aged 21 years and over using 3-MinNS in three wards within 24 hours of admission. A dietitian then assessed the patients’ nutritional status using Subjective Global Assessment within 48 hours of admission, whilst blinded to the results of the screening. To assess the reliability of 3-MinNS, 37 patients screened by the first nurse were re-screened by a second nurse within 24 hours, who was blinded to the results of the first nurse. The sensitivity, specificity and best cutoff score for 3-MinNS were determined using the Receiver Operator Characteristics Curve.

Results: The best cutoff score to identify all patients at risk of malnutrition using 3-MinNS was three, with sensitivity of 89% and specificity of 88%. This cutoff point also identified all (100%) severely malnourished patients. There was strong correlation between 3-MinNS and SGA (r=0.78, p<0.001). The agreement between two nurses conducting the 3-MinNS tool was 78.3%.

Conclusion: 3-Minute Nutrition Screening is a valid and reliable tool for nurses to identify patients at risk of malnutrition.

Impact and interest:

8 citations in Scopus
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5 citations in Web of Science®

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ID Code: 63298
Item Type: Journal Article
Refereed: Yes
Additional Information: Published online before print October 9, 2013
Keywords: 3-Minute Nutrition Screening, Subjective Global Assessment, malnutrition, reliability, validity, sensitivity, specificity, nurses
DOI: 10.1177/0884533613502812
ISSN: 1941-2452
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NURSING (111000)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NUTRITION AND DIETETICS (111100)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Information Systems
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2013 American Society for Parenteral and Enteral Nutrition
Deposited On: 13 Oct 2013 23:40
Last Modified: 21 Oct 2013 04:01

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