The Rhône-Alpes and Auvergne regions have had childhood cancer registries since 1987; they compile about 200 new cases a year. The Rhône-Alpes registry has conducted a preliminary trial on children (0-15 years old) diagnosed with cancer between 1987 and 1992. They analyzed the correlation between patients' quality of life and the long-term medical effect of cancer and treatment, both recorded in patients' medical files and declared by patients. These young adults who survived pediatric cancer appear to suffer from and declare many complications, although this does not impact their global quality of life much. There is a negative correlation between the number of complications (observed or declared) and the global quality of life score, but only three types of complications play a significant role (motor function complications, auditory complications, and alopecia.) In addition, there is a significant mismatch between patients's perceived health (what they say they experience), and the information contained in their medical files. These young adults expressed the need for their impressions to be better taken into account by health care professionals. This study does not assess patients' psychopathological characteristics.