000133347 001__ 133347
000133347 005__ 20240412150654.0
000133347 0247_ $$2doi$$a10.3390/jcm13061662
000133347 0248_ $$2sideral$$a138065
000133347 037__ $$aART-2024-138065
000133347 041__ $$aeng
000133347 100__ $$aMartínez-González, Agustín Ernesto
000133347 245__ $$aPsychometric properties of the gastrointestinal symptom severity scale in a sample of adolescents and young adults
000133347 260__ $$c2024
000133347 5060_ $$aAccess copy available to the general public$$fUnrestricted
000133347 5203_ $$aBackground: Functional gastrointestinal disorders (FGIDs) are a set of chronic or recurrent gastrointestinal symptoms (GS) with great psychobiological complexity. The appearance of FGIDs harms quality of life and drains medical resources. Methods: Psychometric properties of the Gastrointestinal Symptom Severity Scale (GSSS) based on Rome IV criteria were examined in a sample of 1247 individuals with typical development. Observations were randomly divided into two subsets, namely, subsample 1 (n = 624) and subsample 2 (n = 623). Exploratory factor analysis (EFA) was performed with data from subsample 1, whilst confirmatory factor analysis (CFA) was performed with data from subsample 2. Internal consistency of the scale was assessed for the whole dataset according to ordinal alpha, whilst four-week reliability was measured according to the intraclass correlation coefficient (ICC). Measurement invariance as a function of sex was also examined, and discriminant–convergent validity of the GSSS was examined through hypothesis testing. Results: EFA revealed a two-factor structure with a moderate percentage of explained variance (51.3%), whilst CFA exhibited an excellent fit of the data to the model. A one-factor CFA model demonstrated an acceptable but slightly lower fit. Internal consistency was moderate and test–retest reliability was deemed adequate. Metric invariance was demonstrated as a function of sex. Hypothesis testing demonstrated strong convergent–discriminant validity with measures of sensory sensitivity, obsessive–compulsive symptoms, and pain. Conclusions: The GSSS is a tool with acceptable and promising psychometric properties when administered to neurotypical adolescents and young adults. The self-report GSSS may promote better understanding of GS involvement in the gut microbiota–brain axis in the general population.
000133347 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000133347 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000133347 700__ $$aMontoro-Pérez, Néstor
000133347 700__ $$aWallace, Agustín
000133347 700__ $$aPérez-Sánchez, Susana
000133347 700__ $$aPiqueras, José A.
000133347 700__ $$aInfante-Cañete, Lidia
000133347 700__ $$aHidalgo-Berutich, Silvia
000133347 700__ $$aRodríguez-Jiménez, Tíscar$$uUniversidad de Zaragoza
000133347 700__ $$aAndreo-Martínez, Pedro
000133347 7102_ $$14009$$2680$$aUniversidad de Zaragoza$$bDpto. Psicología y Sociología$$cÁrea Person.Eval.Trat.Psicoló.
000133347 773__ $$g13, 6 (2024), 13 pp.$$pJ. clin.med.$$tJournal of Clinical Medicine$$x2077-0383
000133347 8564_ $$s918983$$uhttps://zaguan.unizar.es/record/133347/files/texto_completo.pdf$$yVersión publicada
000133347 8564_ $$s2750474$$uhttps://zaguan.unizar.es/record/133347/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000133347 909CO $$ooai:zaguan.unizar.es:133347$$particulos$$pdriver
000133347 951__ $$a2024-04-12-13:58:25
000133347 980__ $$aARTICLE