Table 6 Prediction of unintentional weight loss, ROC analysis.

From: Usefulness of barium sulfate and iohexol as contrast agents for VFSS in visualizing components of swallowing predictable of poor outcomes

Parameter (n = 27)

AUC-ROC

p value

95% CI

Upper limit

Lower limit

Barium sulfate

 FDS score—oral transit time

0.736**

0.037*

0.933

0.540

 FDS score—coating of pharyngeal wall after swallow

0.654

0.174

0.867

0.441

 Number of swallows to eliminate contrast from pharyngeal space

0.766**

0.019*

0.950

0.583

Iohexol

 FDS score—oral transit time

0.698

0.081

0.903

0.493

 FDS score—nasal penetration

0.720**

0.052

0.917

0.523

 FDS score—residue in valleculae

0.720**

0.052

0.918

0.522

 PAS score

0.761**

0.021*

0.951

0.571

 Number of swallows to eliminate contrast from pharyngeal space

0.805**

0.007*

0.974

0.636

  1. AUC area under the curve, FDS functional dysphagia scale, PAS penetration aspiration scale.
  2. *p < 0.05, **AUC-ROC > 0.7.
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