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Reflections on Clinical and Statistical Use of the Penetration-Aspiration Scale
- Source :
- Dysphagia
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- The 8-point Penetration-Aspiration Scale (PAS) was introduced to the field of dysphagia in 1996 and has become the standard method used by both clinicians and researchers to describe and measure the severity of airway invasion during swallowing. In this article, we review the properties of the scale and explore what has been learned over 20 years of use regarding the construct validity, ordinality, intervality, score distribution, and sensitivity of the PAS to change. We propose that a categorical revision of the PAS into four levels of increasing physiological severity would be appropriate. The article concludes with a discussion of common errors made in the statistical analysis of the PAS, proposing that frequency distributions and ordinal logistic regression approaches are most appropriate given the properties of the scale. A hypothetical dataset is included to illustrate both the problems and strengths of different statistical approaches.
- Subjects :
- Pathology
medicine.medical_specialty
Scale (ratio)
Review Article
Penetration-aspiration
Machine learning
computer.software_genre
Severity of Illness Index
Videofluoroscopy
030507 speech-language pathology & audiology
03 medical and health sciences
Speech and Hearing
0302 clinical medicine
Humans
Medicine
Statistical analysis
Categorical variable
business.industry
Statistics
Gastroenterology
Construct validity
Dysphagia
Deglutition
Otorhinolaryngology
Ordered logit
Penetration aspiration scale
Artificial intelligence
Frequency distribution
medicine.symptom
Deglutition Disorders
0305 other medical science
business
computer
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 14320460 and 0179051X
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Dysphagia
- Accession number :
- edsair.doi.dedup.....675f0de1e2e7adfcf38e3f07c8a318a8