Customers' complaints and its determinants: the case of a training educational hospital in iran.

Background: Today, despite the efforts of the medical community and healthcare staff along with the advancements in medical technology, patients' dissatisfaction and complaints have been increased. The present study aimed at making a survey on the patients' complaints in a large training hospital affiliated to Mashhad University of Medical Sciences (MUMS).

Methods: This descriptive, cross-sectional study was conducted on written and verbal complaints of patients and their relatives in a tertiary (specialty and sub-specialty) training hospital.