How common is a dupuytren's contracture?

About 1 in 20 people: Typically affects people of northern european origin, less common in other ethnicities.

Heritage genes: It depends where you are form, as a gene that is expressed more poignantly and present more on those of northern european heritage, dupuytrens os sometimes called viking disease, although ive seen it in patients of every seemingly ethnic background. My joke with my patients is that those viking "got around a lot" a thousand years ago. http://www.ncbi.nlm.nih.gov/pmc/articles/pmc1305903/.

Common: Incidence 3-6%. Higher incidence in descendants of northern europe.

Common: it is present in 6% of the world caucasian population it is also seen in different races as well