[Quality of life in patients with chronic rhinosinusitis: validation of the Sino-Nasal Outcome Test-20 German Adapted Version]

HNO. 2007 Jan;55(1):42-7. doi: 10.1007/s00106-005-1347-6.
[Article in German]

Abstract

Background: No validated German instrument for measuring health-related quality of life (QOL) in patients with chronic rhinosinusitis (CRS) has been available to date.

Methods: The Sino-Nasal Outcome Test-20 German Adapted Version (SNOT-20 GAV) is a translated and adapted version of SNOT-20. To validate this instrument, we evaluated its reliability, validity and sensitivity. SNOT-20 GAV was completed by 163, 123, and 82 patients at the initial visit and at 3 months and 1 year after treatment commencement, respectively.

Results: Cronbach's alpha indicated good internal consistency. Test-retest scores in 38 patients were highly correlated. Discrimination validity was demonstrated by a comparison with healthy controls. Sensitivity to change showed medium to large effects.

Conclusions: SNOT-20 GAV is the first reliable, validated and sensitive German instrument for measuring health-related QOL in patients with CRS.

Publication types

  • Validation Study

MeSH terms

  • Adult
  • Chronic Disease
  • Germany / epidemiology
  • Humans
  • Outcome and Process Assessment, Health Care / methods*
  • Outcome and Process Assessment, Health Care / statistics & numerical data
  • Quality Assurance, Health Care / methods*
  • Quality of Life*
  • Reproducibility of Results
  • Rhinitis / diagnosis*
  • Rhinitis / epidemiology
  • Rhinitis / therapy*
  • Sensitivity and Specificity
  • Sinusitis / diagnosis*
  • Sinusitis / epidemiology
  • Sinusitis / therapy*
  • Surveys and Questionnaires*
  • Treatment Outcome