[The quality of voter registration lists and participation factors during a community survey of elderly people]. / Qualité des listes électorales et facteurs de participation lors d'une enquête communautaire auprès de personnes âgées.

ABSTRACT

Electoral registers are often used to randomly select persons for epidemiological surveys. The importance and the different types of inaccurate informations found in these lists were studied during a survey among an elderly population of 5,161 persons aged 75 and over in Tarn area. Information was found to be inaccurate in 13.7% of the cases (people who have died 3%, moved out of the area 10.5%, inaccurate date of birth 0.2%), this increased with age and with size of the parish. The overall participation was 65.3%. The corrected participation (with exclusion of inaccurate information) was 75.7% and was higher in rural parishes and where the help of local organizations of elderlies was available.