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[User opinions based on complaints filed].

BACKGROUND
The analysis of complaints is a way to know the users satisfaction on a health center.


METHODS
We analyzed 270 formal patient complaints, made at Pino Montano Health Centre (Seville) from 1986 to 1989.


RESULTS
Complaint rates was 315.55 per 100,000 persons-years. This rate was higher than such observed in other studies. 75.5% of complaints were related to organizational or structural problems.


CONCLUSIONS
With this analysis we can overtake the acceptability of health system overall or to highlight some structural problems in the organization and to discover areas of dissatisfaction with the medical quality.