Fig. 2. Standardized coefficients of the seven-factor model of the Patient Satisfaction with Perioperative Anesthesia Care questionnaire in group 3 patients (n = 225). Rectangles indicate observed items; ovals, latent constructs; values behind squares, variance of error terms; values on the arrows, path coefficients; values on the double arrows, correlations. The number of observed items in this model coincided with table 2of the exploratory factor analysis.