This study describes the anti-influenza vaccination coverage of persons aged 65 or over who presented at the family medicine unit (FMU) of the Saint-Sacrement Hospital (Quebec City), between January 1988 and December 1992. All individuals were classified according to their anti-influenza vaccination status for each vaccination period. In general, the proportion of vaccinated persons increased by 14.1% during the five-year vaccination period. The mean increase in the proportion of vaccinated persons is 22.6% for those seen at least once a year at the FMU and 52.6% for those who were vaccinated at the FMU the previous year. The study results indicate that regular medical examination and previous vaccination increase the likelihood of subsequent vaccination in persons aged 65 or over.