Hassanali J
Am J Phys Anthropol. 1982 Nov;59(3):317-9. doi: 10.1002/ajpa.1330590313.
Examination for incidence of Carabelli's trait was done on 1267 Africans and 781 Asian school children, 298 dental plaster casts and 248 skulls of Africans. The African sample is composed of 80% Bantu, 20% Nilote, and Nilo-Hamitic people. When observed intraorally, the trait is present in 31-35% of Africans and 26-27% of Asians. In the dental casts and skull sample of Africans, the trait is present as pit in 23-28%, groove in 20%, and as tubercle and cusp in 22%. The total trait frequency in Africans is 68%.
对1267名非洲学童和781名亚洲学童进行了卡氏特征发生率的检查，还检查了298个非洲人的牙石膏模型和248个非洲人的头骨。非洲样本中80%是班图人，20%是尼罗特人以及尼罗-哈姆itic人。经口腔内观察，该特征在31%-35%的非洲人以及26%-27%的亚洲人身上出现。在非洲人的牙石膏模型和头骨样本中，该特征表现为凹陷的占23%-28%，表现为沟的占20%，表现为结节和尖的占22%。非洲人身上该特征的总发生率为68%。
