Anticipation phenomenon in familial adenomatous polyposis: an analysis of its origin

Table 4 Deceased parent-child pairs of FAP patients classified by the parental status of the child, and the anticipation

Age at death	Group A	Group Bb
Parent > child	184	93
Parent ≤ child	57	5

Group A: Parent-child pairs in which the child had become a parent. Group B: Parent-child pairs in which the child had not had any child.

^bP < 0.01, vs Group A.