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Development of the thirst distress scale.

Janet L Welch1

  • 1Indiana University School of Nursing, Department of Adult Health, Indianapolis, IN, USA. jwelch@iupui.edu

Nephrology Nursing Journal : Journal of the American Nephrology Nurses' Association
|September 13, 2002
PubMed
Summary

Researchers developed a new 6-item thirst distress scale for hemodialysis patients. The scale demonstrates good reliability and validity, aiding clinical research and patient care.

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Area of Science:

  • Nephrology
  • Psychometrics
  • Patient-Reported Outcomes

Background:

  • Thirst is a common and distressing symptom for patients undergoing hemodialysis.
  • Existing measures may not adequately capture the multifaceted nature of thirst distress in this population.
  • A validated instrument is needed to assess thirst distress in clinical settings.

Purpose of the Study:

  • To develop and validate a reliable and valid 6-item instrument to measure thirst distress.
  • To provide a tool for assessing the impact of thirst on hemodialysis patients.
  • To support clinical research and improve patient management.

Main Methods:

  • Instrument development involved interviews, literature review, and expert consensus.
  • Content validity was established by an expert panel.
  • A sample of 247 outpatient hemodialysis adults completed the scale.
  • Reliability was assessed using Cronbach's alpha (α = .78).
  • Construct validity was examined through factor analysis and correlations with thirst intensity and interdialytic weight gain.

Main Results:

  • The developed 6-item thirst distress scale showed good internal consistency (Cronbach's alpha = .78).
  • Factor analysis supported the construct validity of the scale.
  • Significant positive correlations were found between thirst distress, thirst intensity, and interdialytic weight gain.

Conclusions:

  • The 6-item thirst distress scale is a reliable and valid instrument for use in clinical studies.
  • This scale can aid in understanding and managing thirst distress in hemodialysis patients.
  • Further research may explore its application in diverse clinical populations and interventions.

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