How common is clubfoot?
There are differing estimates of the rates of incidence ranging from 1:500 to 1:1,000 births. The March of Dimes statistic is 1:735. Ratio of male to female is 2:1 to 3:1. 40% of cases are reported to be bilateral (both feet). If one child in a family has clubfoot, the chances for a second child having clubfoot are 1 in 35 (2.9%). In identical twins, both children have clubfoot only 32.5% of the time. In non-identical twins, the chances are the same as non-twin siblings that both children will have clubfoot, 2.9%. If one parent has clubfoot, the chances that they will have a child with clubfoot are 3%.
