Parents of people with Dubowitz syndrome are sometimes related, and there have been several cases of it occurring in monozygotic twins, siblings, and cousins. There is great variability in symptoms between cases, especially in intelligence.
Parents of individuals with Dubowitz syndrome sometimes share a common ancestry, and there have been instances of it occurring in monozygotic twins, siblings, and cousins. There is considerable variability in symptoms between cases, particularly in intellectual capacity.