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Validity and responsiveness of VELO: a velopharyngeal insufficiency quality of life measure.

ABSTRACT: OBJECTIVE:Test the Velopharyngeal Insufficiency (VPI) Effects on Life Outcomes (VELO) instrument for validity, reliability, and responsiveness. STUDY DESIGN:Observational cohort. SETTING:Academic tertiary medical center. SUBJECTS:Children with VPI (n = 59) and their parents (n = 84) were prospectively enrolled from a pediatric VPI clinic. METHODS:Pediatric speech language pathologists diagnosed VPI using perceptual speech analysis and rated VPI severity and speech intelligibility deficit (each as minimal, mild, moderate, or severe). All parents and youth 8+ years old (n = 24) completed the VELO instrument and other quality-of-life questionnaires at baseline; the first 40 subjects completed the VELO instrument again 2 weeks later. Treatments included Furlow palatoplasty (n = 20), sphincter pharyngoplasty (n = 14), or an obturator (n = 2), and 29 of 36 (81%) subjects completed the questionnaires 3 months posttreatment. VELO was tested with correlations for criterion validity against VPI severity, construct validity against speech intelligibility and velopharyngeal gap size, and concurrent validity against other quality-of-life measures (r > .40 demonstrating validity); for test-retest reliability using intraclass correlation (>.6 demonstrating reliability); and for responsiveness with the 3-month posttreatment measure using the paired t test. RESULTS:Parental responses are reported; youth responses showed similar results. The VELO instrument did not meet criterion validity (r = -.18, P = .10), or functional construct validity (r = -.37, P = .001), but did meet anatomic construct and concurrent validity (each r > .50, P < .01). VELO scores demonstrated excellent test-retest reliability (r = .85, P < .001) and responsiveness (baseline 54 ± 14 to posttreatment 70 ± 18, P < .001). CONCLUSION:VELO provides a VPI-specific quality-of-life instrument that demonstrates concurrent validity, test-retest reliability, and responsiveness to change in quality of life with treatment.

SUBMITTER: Skirko JR

PROVIDER: S-EPMC4074517 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature

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Validity and responsiveness of VELO: a velopharyngeal insufficiency quality of life measure.

Skirko Jonathan R JR Weaver Edward M EM Perkins Jonathan A JA Kinter Sara S Eblen Linda L Sie Kathleen C Y KC

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 20130412 2

<h4>Objective</h4>Test the Velopharyngeal Insufficiency (VPI) Effects on Life Outcomes (VELO) instrument for validity, reliability, and responsiveness.<h4>Study design</h4>Observational cohort.<h4>Setting</h4>Academic tertiary medical center.<h4>Subjects</h4>Children with VPI (n = 59) and their parents (n = 84) were prospectively enrolled from a pediatric VPI clinic.<h4>Methods</h4>Pediatric speech language pathologists diagnosed VPI using perceptual speech analysis and rated VPI severity and sp ...[more]

PMID: 23585146

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Project description:ObjectiveAssessment of the hypothesized correlation between the Chinese Velopharyngeal Insufficiency (VPI) Effects on Life Outcomes (VELO) instrument and measured speech parameters.MethodsA cross-sectional study was conducted in the Oral Clefts Center of West China Hospital of Stomatology between January 2019 and December 2019. Speech parameters including speech intelligibility deficit, VPI severity, VP gap, and need for speech therapy were evaluated by speech-language pathologists. All patients and their parents completed the VELO instrument. The correlation between aforementioned speech parameters and VELO scores was examined utilizing Spearman correlation coefficients. The reliability of VELO test-retest and parent proxy assessment was estimated utilizing intraclass correlation coefficients (ICC). A receiver operating characteristic curve was used to calculate the cutoff VELO score.ResultsOne hundred and forty patients with their parents were enrolled. The mean age was 12.58 ± 3.72 years. Both parent and youth VELO total and domain scores recorded moderate to strong correlations with all speech parameters (r > -.40, P ˂ .001) except the swallowing domain. Most VELO domain items have shown significant correlations with at least one speech parameter. Moreover, the scales of all speech parameters showed different VELO scores (P ˂ .001). The ICC reported test-retest correlation >.73 in all domains, and parent proxy correlation >.63 in most domains except the emotional and perception domains. The cutoff VELO score was 79.04 in parent version and 85.77 in youth version.ConclusionsThe correlations between VELO scores and measured speech parameters have provided evidence for test-retest and parent proxy reliability and criterion and construct validity of the Chinese version of the VELO instrument. A VELO score ≥79.04 (in parent version) or ≥85.77 (in youth version) mostly reflects proper speech-related quality of life. Hence, this instrument could serve as a simple tool to help clinicians understand the social, emotional, and physical influences of VPI.

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Validity and responsiveness of VELO: a velopharyngeal insufficiency quality of life measure.

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Validity and responsiveness of VELO: a velopharyngeal insufficiency quality of life measure.

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