1. Practical Dyspnea Assessment: Relationship Between the 0–10 Numerical Rating Scale and the Four-Level Categorical Verbal Descriptor Scale of Dyspnea Intensity 
Nicholas G. Wysham, MD, Benjamin J. Miriovsky, MD, MS, David C. Currow, BMed, MPH, James E. Herndon, PhD, Gregory P. Samsa, PhD, Andrew Wilcock, MB ChB, DM, FRCP, Amy P. Abernethy, MD, PhD 
Journal of Pain and Symptom Management 
Volume 50, Issue 4, Pages (October 2015)
DOI: /j.jpainsymman
Copyright © 2015 American Academy of Hospice and Palliative Medicine Terms and Conditions

2. Fig. 1
Practical relationship between Numerical Rating Scale and Verbal Descriptor Scale for pain (based on results from Refs. 15,16).
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2015 American Academy of Hospice and Palliative Medicine Terms and Conditions

3. Fig. 2
Distribution of Verbal Descriptor Scale (VDS) categories at each Numerical Rating Scale (NRS) score, reflecting current breathlessness across all study days.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2015 American Academy of Hospice and Palliative Medicine Terms and Conditions

4. Fig. 3
Practical relationships between Numerical Rating Scale and Verbal Descriptor Scale for pain (top, based on results from Refs. 15,16) and breathlessness (bottom, based on this study).
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2015 American Academy of Hospice and Palliative Medicine Terms and Conditions