NailQoL: a quality-of-life instrument for onychomycosis.
BACKGROUND: The disease burden onychomycosis is not trivial. The aim is to develop a quality of life instrument to measure the onychomycosis burden. METHODS: 402 patients with mycologically-confirmed onychomycosis completed a baseline questionnaire of 39 quality of life items (modified Skindex-29 questions and 10 additional nail-specific questions). Internal consistency, reproducibility and responsiveness of the final instrument, NailQoL were measured. RESULTS: 15 items consisting of symptom (3), emotion (10), and functional (2) domains were retained in NailQoL. Symptom and emotion subscales = 0.80-0.92. Administration alpha demonstrated good internal consistency (Cronbach's of the instrument to 46 patients at one month after baseline revealed good reproducibility (ICC 0.88-0.91). Responsiveness was measured in 292 patients at 18 months; statistically significant better NailQoL scores were found in individuals with complete cure (mycological and clinical) (P < 0.01). CONCLUSION: NailQoL represents a new concise, valid, reliable, and responsive instrument for measuring burden of skin disease for patients with onychomycosis.
Duke Scholars
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Related Subject Headings
- Surveys and Questionnaires
- Statistics, Nonparametric
- Sickness Impact Profile
- Reproducibility of Results
- Randomized Controlled Trials as Topic
- Quality of Life
- Psychometrics
- Onychomycosis
- Middle Aged
- Male
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Surveys and Questionnaires
- Statistics, Nonparametric
- Sickness Impact Profile
- Reproducibility of Results
- Randomized Controlled Trials as Topic
- Quality of Life
- Psychometrics
- Onychomycosis
- Middle Aged
- Male