RESUMEN
Te aim of this work was to devise and assess the reliability of an instrument to measure satisfaction with medical consultation of primary care urban patients at public outpatients clinics. A model was elaborated, based on data collected from the literature and from focal groups of patients and physicians and an enquiry was developed and applied at four outpatient clinics. Fifty enquires were obtained and analyzed to discard questions of difficult understanding. Next, a second self administered questionnaire and with fewer questions was devised. Its reliability was assessed in 53 enquires, obtaining a Cronbach's of 0.904. Questions that decreased consistency were discared, finally obtaining a self administered instrument with analysis with varimax rotation, which separated three factors that explain 64 percent of the variance. It is concluded that a valid and reliable instrument was obtained