Five-year analysis of hospital complaints at a Japanese tertiary teaching hospital

Patient complaint taxonomies strongly support the use of healthcare complaints as a powerful tool to improve the quality and safety of patient care. Hospitals use complaint data at the organizational level to address quality variation across service lines and departments.

We applied a validated typology method to identify where the complaints occured and gained deeper insights about how they can be more effectively utilized to drive and implement continuous quality and service improvement activities within a tertiary hospital. We included all complaints and opinions from patients and their families over a 5-year period at a large tertiary teaching hospital in Japan. Two analysts categorized the opinions into complaints and gratitude expressions, with complaints classified using Reader et al.'s taxonomy. We performed statistical tabulations and determined the number of complaints across hospital sectors using the chi-squared test, residual analysis, and Cramer's V tests to check for significant correlations between the variables.

A total of 6607 complaints and comments were received. Of these, 5401 related to the Clinical, Administrative, and Human Relations domains, respectively (11.1%, 56.1%, and 32.8%). At the domain level, the most common complaints are related to the Relationships domain in both the Medical and Nursing departments. However, a detailed analysis of the category levels demonstrated that the Medicine department received the most complaints in the Communication and Patient Rights category, whereas in the Nursing department, the Humanness/Caring and Patient Rights categories were the most common sources for complaints. The Administrative department complaints were mostly related to the Management domain, with the largest number of complaints related to the Institutional Issues category.

We used a validated taxonomy to identify and address trends in patient complaints and identified the key hospital departments that required remedial improvement actions. All hospital departments received direct and targeted feedback on how to effectively improve the quality, safety and services of their clinical service lines.