Notice: The calculation reference being different between 2003 and 2004, the probabilities are not comparables between the charts.
Interpretation: At the second semester of 2003, the probability of taking out the MGET additional health cover is different according to subscribers' age: up to the age of 20, the probability decreases as age goes up; then it increases between the age of 20 and 80, and lastly it drops after 80 (left). From the second semester of 2004, the additional health cover attracts young subscribers: the probability of taking out the additional health cover lowers as age rises (right).
Data: Mutuelle générale de l'équipement et des territoires (MGET).
Adapted from the Questions d'économie de la Santé n° 150: Who Took out Additional Supplementary Health Insurance? A dynamic Analysis of Adverse-Selection.