Polymorphism of debrisoquine hydroxylation among Finns and Lapps.

Abstract
Debrisoquine hydroxylation polymorphism was studied in 155 Finns and 70 Lapps. The frequency of the poor metabolizer phenotype was 3.2% among Finns (95% confidence interval 0.4‐6.0%) and 8.6% among Lapps (95% confidence interval 2.0‐15.1%).