The CHARGE Association is a nonrandom occurrence of congenital malformation
s that has been described in clinical series. Reported patients have been s
elected on the basis of certain prior criteria. In this article, we try to
identify a congenital malformation pattern corresponding to the CHARGE Asso
ciation, using statistical methods and analyzing 5,260 infants with multipl
e malformations collected from four large registries of congenital malforma
tions. Care was taken to identify a number of confounding characteristics t
hat can influence the ascertainment and registration of specific congenital
malformations. We have identified a cluster of malformations that generall
y agreed with the current clinical definition of the CHARGE Association and
have added some further malformations (e.g., facial clefts). We demonstrat
e that others (e.g., esophageal atresia) are probably not part of the patte
rn. Heart defects (H in the acronym) seems to be less helpful in identifyin
g infants with the association. We suggest a method to select infants who p
robably represent the CHARGE Association for analyses of possible risk fact
ors. (C) 1999 Wiley-Liss, Inc.