The Spanish and Italian Healthcare Professionals' Contribution to the Safety Attitudes Questionnaire Short Form in the Operating Room: Construct Validity and Reliability.

Abstract

The aims of the study are to determine the construct validity and reliability of the Spanish and Italian versions of the Safety Attitudes Questionnaire Short Form and to study the capability of this scale of distinguishing between different countries, types of healthcare professionals, and attitudes around patient safety. This was a cross-sectional study of the scale among registered nurses, surgeons, and anesthetists providing direct patient care at surgical inpatient units within public health services in Spain (Sistema Nacional de Salud) and Italy (Servizio Sanitario Nazionale). Construct validity, in both countries, was firstly assessed by exploratory factor analysis. Then, a confirmatory factor analysis was conducted, and finally an assessment was performed by means of hypothesis testing. The reliability of the scale was calculated using Cronbach α coefficient. A total of 499 healthcare professionals completed the questionnaire (Spain, n = 183; Italy, n = 316). The questionnaire showed excellent internal consistency (α = 0.85). An exploratory factor analysis identified a new factor model of the scale. The confirmatory factor analysis performed on this new model reflected the fair dimensionality of the construct (χ2 = 1193.63, root mean square error of approximation < 0.05, standardized root mean square residual < 0.08; nonnormed fit index, comparative fit index, incremental fit index, and goodness of fit index values = 0.90, indicating a good fit). This study provides scientific evidence of the construct validity and reliability of the Safety Attitudes Questionnaire Short Form in both Spain and Italy, showing the capability of this scale of distinguishing between different countries, types of healthcare professionals, and attitudes around patient safety.