NEQOL Survey Spanish Validation in a Hispanic Clinic Based Population

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

385 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-10-31

Study Completion Date

2017-11-30

Brief Summary

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Chronic esophageal disorders affect approximately one third part of global population, with a deleterious impact in the quality of life of patients. Measured of health related quality of life in chronic esophageal conditions such as gastroesophageal reflux disease and achalasia are widely used to measure this important patient-reported outcome. The Northwestern Esophageal Quality of Life (NEQOL) is a hybrid measure of esophageal illness, allowing for broad use across esophageal diseases while maintain sensitivity to nuances of a specific condition. The NEQOL is a reliable and valid hybrid measure of disease specific health related quality of life across several chronic esophageal conditions. The Ecuadorian Institute of Digestive Diseases aims to translate and validate this survey into Spanish for its use in a Hispanic population. This cross-sectional study aims to translate, apply and validate the NEQOL in the patients attending in the esophageal division of the institute.

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Detailed Description

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Methods: An authorization for translating the survey into Spanish was obtained from the survey authors. The translation and cross-cultural adaptations were carried out based on guidelines and international criteria proposed by Sperber. The NEQOL was translated independently from English into Spanish by two professional translators. Each one provided a written report, which was combined by the authors in a new version that contained the most reliable translation for each question. The new version was back translated to English by two different professional translators, who were blinded to the original version of the NEQOL. A new English version was developed by combining the written reports. The aim of the back translation was to compare each item of the new English version with the original NEQOL. Each item of the new English version was compared with the original questionnaire by 30 native English speakers. The success of the translation was evaluated using two scales of comparison: comparability of language and similarity of interpretability. Each one used Likert scales ranging from 1 (extremely comparable/ extremely similar) to 7 (not at all comparable/ not at all similar). A mean score for each question was obtained. Questions with mean scores of three or less were included in the Spanish version. The Spanish version of the NEQOL was tested on 10 subjects diagnosed with GERD, each subject provided feedback on the survey content, which was used to make final corrections. The questionnaire contains fourteen questions; every statement refers to the impact of the esophageal condition in the quality of life. There are five options ranking from not at all true to very true, with every option meaning a numerical value, a higher grade in the questionnaire will express a better quality of life and a low impact in the health-related quality of life.

Patients above 18 years old with chronic esophageal disorders, that require a functional esophageal test such as ph-impedanciometry and/or high-resolution manometry, will be included. Written informed consent will be obtained. All participants will complete the questionnaire before performing the functional esophageal tests and a gastroenterologist specialized on functional esophageal pathology will perform the esophageal tests and analyze the results. Finally, the data from the questionnaire will be compared with the esophageal tests results in order to stablish if there is a correlation between the impact in the quality of life measured by the questionnaire and the tests results.

Statistical analysis: Base line characteristics will be analyzed using Chi-square o Fisher Test for categorical variable, and the Mann-Whitney Test for continuing variables. Continuous variables will be expressed as mean +/- standard deviation. The sensitivity, specificity, predictive values and accuracy will be calculated with the 95% Confidence Interval (95% CI). A P value of less than 0.05 was considered to be statistically significant. All the statistical analysis was performed using SPSS software suite v.22.

Conditions

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Gastroesophageal Reflux Disease and Esophageal Motility Disorders

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Interventions

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Spanish Northwestern Esophageal Quality of Life questionnaire

Intervention Type OTHER

Other Intervention Names

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Spanish NEQOL

Eligibility Criteria

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Inclusion Criteria

* Written informed consent obtained
* Ability to complete the survey
* Hispanic patients above 18 years old with chronic esophageal disorders, that require a functional esophageal test such as ph-impedanciometry and/or high-resolution manometry