Dataset Information

Brazilian-Portuguese Linguistic Validation of the Velopharyngeal Insufficiency Effects on Life Outcome Instrument.

ABSTRACT: BACKGROUND:The purpose of this study was to conduct a linguistic validation of the velopharyngeal insufficiency (VPI) Effects on Life Outcome (VELO) instrument for use in Brazilian-Portuguese patients with VPI. METHODS:The original English version of the VELO instrument was translated into Brazilian-Portuguese, back-translated, and adapted among the Brazilian patients (n?=?21) with VPI and their parents, based on the standardized guidelines for the cross-culture adaption process. Discrepancies in the forward and backward translation steps were computed. Comprehension rates were captured for each debriefing interview. The content validity index (CVI) per item (I-CVI) and of the scale (S-CVI universal agreement [S-CVI/UA] and averaging [S-CVI/Ave]) were calculated. RESULTS:Reconciliation of the 2 forward translations and the comparison between the back translation and the original VELO version resulted in some item wordings with discrepancies which were reviewed by the research team (translators, expert committee, and original developers of instrument). Three rounds of cognitive interviews also led to some revisions of wording. Comprehension rates of patients and their parents were 60% to 100%, 80% to 100%, and 100% in the first, second, and third rounds of cognitive interviews, respectively. The I-CVI, S-CVI/AU, and SCI/Ave for the Brazilian-Portuguese VELO version were 0.83 (or higher), 0.83 (or higher), and 0.97, respectively. CONCLUSIONS:The linguistic validation process of the VELO instrument created a cross-culturally equivalent Brazilian-Portuguese version for use in Brazilian-Portuguese speaking patients with VPI.

SUBMITTER: Denadai R

PROVIDER: S-EPMC6834880 | biostudies-literature | 2019 Nov-Dec

REPOSITORIES: biostudies-literature

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Brazilian-Portuguese Linguistic Validation of the Velopharyngeal Insufficiency Effects on Life Outcome Instrument.

Denadai Rafael R Raposo-Amaral Cassio Eduardo CE Sabbag Anelise A Ribeiro Rafael Andrade RA Buzzo Celso Luiz CL Raposo-Amaral Cesar Augusto CA Hung Man M Skirko Jonathan R JR

The Journal of craniofacial surgery 20191101 8

<h4>Background</h4>The purpose of this study was to conduct a linguistic validation of the velopharyngeal insufficiency (VPI) Effects on Life Outcome (VELO) instrument for use in Brazilian-Portuguese patients with VPI.<h4>Methods</h4>The original English version of the VELO instrument was translated into Brazilian-Portuguese, back-translated, and adapted among the Brazilian patients (n = 21) with VPI and their parents, based on the standardized guidelines for the cross-culture adaption process. ...[more]

PMID: 31233001

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Project description: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.

Project description:BACKGROUND:Measures that reflect patients' assessment of their health are of increasing importance as outcome measures in randomised controlled trials. The methodological approach used in the pre-validation development of new instruments (item generation, item reduction and question formatting) should be robust and transparent. The totality of the content of existing PRO instruments for a specific condition provides a valuable resource (pool of items) that can be utilised to develop new instruments. Such 'top down' approaches are common, but the explicit pre-validation methods are often poorly reported. This paper presents a systematic and generalisable 5-step pre-validation PRO instrument methodology. METHODS:The method is illustrated using the example of the Aberdeen Glaucoma Questionnaire (AGQ). The five steps are: 1) Generation of a pool of items; 2) Item de-duplication (three phases); 3) Item reduction (two phases); 4) Assessment of the remaining items' content coverage against a pre-existing theoretical framework appropriate to the objectives of the instrument and the target population (e.g. ICF); and 5) qualitative exploration of the target populations' views of the new instrument and the items it contains. RESULTS:The AGQ 'item pool' contained 725 items. Three de-duplication phases resulted in reduction of 91, 225 and 48 items respectively. The item reduction phases discarded 70 items and 208 items respectively. The draft AGQ contained 83 items with good content coverage. The qualitative exploration ('think aloud' study) resulted in removal of a further 15 items and refinement to the wording of others. The resultant draft AGQ contained 68 items. CONCLUSIONS:This study presents a novel methodology for developing a PRO instrument, based on three sources: literature reporting what is important to patient; theoretically coherent framework; and patients' experience of completing the instrument. By systematically accounting for all items dropped after the item generation phase, our method ensures that the AGQ is developed in a transparent, replicable manner and is fit for validation. We recommend this method to enhance the likelihood that new PRO instruments will be appropriate to the research context in which they are used, acceptable to research participants and likely to generate valid data.

Dataset Information

Brazilian-Portuguese Linguistic Validation of the Velopharyngeal Insufficiency Effects on Life Outcome Instrument.

Publications

Brazilian-Portuguese Linguistic Validation of the Velopharyngeal Insufficiency Effects on Life Outcome Instrument.

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