Similar Distributions of Dupuytren's Contracture and Y-Chromosome Haplogroup I Among Modern Europeans Suggest Simultaneous Spreading of These Traits Some 40 to 10 KYA.

A proposition is made that when two independent traits show similar regional patterns of incidence among modern European regions, a plausible expectation is that these two, otherwise unrelated traits, have simultaneously been spread by migration of our ancestors. As a potential example for the proposed concept, distribution of patients with Dupuytren's contracture is here compared with the reported European distribution of Y-Chromosome Haplogroup I, a genetic marker linked to the last glaciation period.