• Eur J Gen Pract · Dec 2024

    Evaluation of the psychometric performance of the Spanish and Catalan versions of the patient reported experiences and Outcomes of Safety in Primary Care (PREOS-PC)-Compact questionnaire.

    • Maria A Fiol-deRoque, José M Valderas, Jorge Arias de la Torre, Maria J Serrano-Ripoll, Montserrat Gens-Barberà, Encarna Sánchez-Freire, Francisco M Martín-Luján, Antonio Olry de Labry, and Ignacio Ricci-Cabello.
    • Research Group in Primary Care and Promotion - Balearic Islands Community (GRAPP-caIB), Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.
    • Eur J Gen Pract. 2024 Dec 1; 30 (1): 22965732296573.

    BackgroundPatients provide a unique, irreplaceable, and essential perspective in evaluating patient safety. The suite of Patient Reported Experiences and Outcomes of Safety in Primary Care (PREOS-PC) tools are a notable exception to the scarcity of patient-reported patient safety measures. Full evaluation of their performance has only been attempted for the English version, thereby limiting its international applicability.ObjectivesTo assess the psychometric performance of the Spanish and Catalan versions of the PREOS-PC-Compact.MethodsCross-sectional validation study. We used Classical Test Theory methods to examine scale score distribution, internal consistency, and construct validity; and Item Response Theory (IRT) methods to further explore construct validity.Results3287 patients completed the Spanish version, and 1007 the Catalan version. Similar results were obtained for both versions. Confirmatory Factor Analysis supported a single construct for each scale. The correlations between PREOS-PC-Compact scales and known group analysis suggested adequate construct validity (inconclusive for known groups at the provider level). All four multi-item scales demonstrated adequate internal consistency reliability (α > 0.7), which was only confirmed for test-retest reliability for 'Practice activation.' A sample between 60-90 patients per practice was estimated sufficient to produce scores with reliability > 0.7 for all scales except for harm scales. IRT models showed disordered thresholds for 'Practice activation' and 'Harm burden' but showed excellent fit after reducing the response categories.ConclusionThe Spanish and Catalan versions of the PREOS-PC-Compact are broadly valid and reliable tools to measure patient safety in Spanish primary care centres; confirmation of lower-than-expected test-rest reliability merits further examination .

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