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Design and psychometric evaluation of the quality of life in patients with anal fistula questionnaire

dc.contributor.authorFerrer-Márquez M.
dc.contributor.authorEspínola-Cortés N.
dc.contributor.authorReina-Duarte A.
dc.contributor.authorGranero-Molina J.
dc.contributor.authorFernández-Sola C.
dc.contributor.authorHernández-Padilla J.M.
dc.date.accessioned2020-09-02T22:17:32Z
dc.date.available2020-09-02T22:17:32Z
dc.date.issued2017
dc.identifier10.1097/DCR.0000000000000877
dc.identifier.citation60, 10, 1083-1091
dc.identifier.issn00123706
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4466
dc.descriptionBACKGROUND: Quality of life is often considered when deciding and evaluating the treatment strategy for patients diagnosed with anal fistula. OBJECTIVE: The purpose of this study was to develop and psychometrically test the Quality of Life in Patients with Anal Fistula Questionnaire. DESIGN: This was an observational cross-sectional study for the development and validation of a psychometric tool. SETTINGS: The study was conducted at a general hospital in the southeast of Spain. PATIENTS: A convenience sample included 54 patients diagnosed with anal fistula. MAIN OUTCOMES MEASURES: The reliability of the tool was assessed through its internal consistency (Cronbach α) and temporal stability (Spearman correlation coefficient (r) between test-retest). The content validity index of the items and the scale was calculated. Correlation analysis and an ordinal regression analysis between the developed tool and the Short Form 12 Health Survey examined its concurrent validity. Principal component analysis and known-group analysis using the Kruskal-Wallis test examined its construct validity. RESULTS: The reliability of the developed questionnaire was very high (α = 0.908; r = 0.861; p < 0.01). Its content validity was excellent (all-item content validity index = 0.79-1.00; scale validity index = 0.92). Evidence of its concurrent validity included strong correlation between the developed tool and Short Form 12 Health Survey (r = 0.734; p < 0.001), and participant scores on the developed tool explained ≈46.2% of the between-subject variation for the participant scores on Short Form 12 Health Survey (Nagelkerke R2 = 0.462). Confirming its construct validity, principal component analysis revealed that 2 factors explained 81.63% of the total variance found. Known-group analysis evidenced the ability of the questionnaire to detect expected differences in patients presenting with different symptomatology. LIMITATIONS: The major limitations of this study were the use of a small sample of Spanish-speaking patients, not including patients in the initial development of the questionnaire, and developing the scoring system using a summation method. CONCLUSIONS: The Quality of Life in Patients with Anal Fistula Questionnaire has proven to be a valid, reliable, and concise tool that could contribute to the evaluation of quality of life among patients with an anal fistula.
dc.language.isoen
dc.publisherLippincott Williams and Wilkins
dc.subjectAnal fistula
dc.subjectPsychometrics
dc.subjectQuality of life
dc.subjectReliability
dc.subjectValidity
dc.subjectadult
dc.subjectanus fistula
dc.subjectArticle
dc.subjectcolorectal surgery
dc.subjectcomorbidity
dc.subjectconcurrent validity
dc.subjectconstruct validity
dc.subjectcontent validity
dc.subjectcross-sectional study
dc.subjectfemale
dc.subjectgeneral hospital
dc.subjecthuman
dc.subjectinternal consistency
dc.subjectLikert scale
dc.subjectmajor clinical study
dc.subjectmale
dc.subjectmiddle aged
dc.subjectobservational study
dc.subjectpsychometry
dc.subjectquality of life
dc.subjectquality of life assessment
dc.subjectQuality of Life in Patients with Anal Fistula Questionnaire
dc.subjectquestionnaire
dc.subjectShort Form 12
dc.subjectsurgical patient
dc.subjectdisability
dc.subjecthealth survey
dc.subjectprocedures
dc.subjectpsychology
dc.subjectquestionnaire
dc.subjectRectal Fistula
dc.subjectreproducibility
dc.subjectSpain
dc.subjectstandards
dc.subjectvalidation study
dc.subjectAdult
dc.subjectCross-Sectional Studies
dc.subjectDisability Evaluation
dc.subjectFemale
dc.subjectHealth Surveys
dc.subjectHumans
dc.subjectMale
dc.subjectMiddle Aged
dc.subjectPsychometrics
dc.subjectQuality of Life
dc.subjectRectal Fistula
dc.subjectReproducibility of Results
dc.subjectSpain
dc.subjectSurveys and Questionnaires
dc.titleDesign and psychometric evaluation of the quality of life in patients with anal fistula questionnaire
dc.typeArticle


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