Table 10.2The sensitivity, specificity, PPVs and NPVs for the GUSS, these were compared with the FEES results in the first sample

FEES, highest score
GUSSAspiration risk, PAS (5 to 8)No Aspiration Risk, PAS (1 to 4)Accuracy
First sample (N=19)
Aspiration risk (0 to 14)133 PPV 81%
No aspiration risk (15 to 20)03NPV 100%
Sensitivity 100%Specificity 50%Prevalence 68%
Second sample (N=30)
Aspiration risk (0 to 14)145PPV 74%
No aspiration risk (15 to 20)011NPV 100%
Sensitivity 100%Specificity 69%Prevalence 10%

PAS, Penetration-Aspiration Scale; PPV, positive predictive value; NPV, negative predictive value

From: 10, Nutrition and hydration

Cover of Stroke
Stroke: National Clinical Guideline for Diagnosis and Initial Management of Acute Stroke and Transient Ischaemic Attack (TIA).
NICE Clinical Guidelines, No. 68.
National Collaborating Centre for Chronic Conditions (UK).
Copyright © 2008, Royal College of Physicians of London.

All rights reserved. No part of this publication may be reproduced in any form (including photocopying or storing it in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright owner. Applications for the copyright owner’s written permission to reproduce any part of this publication should be addressed to the publisher.

PubMed Health. A service of the National Library of Medicine, National Institutes of Health.