Hsu J W, Tsai P, Liu K, Ferguson D
Graduate Research Institute of Medicine, Kaohsiung Medical College, Taiwan, ROC.
Forensic Sci Int. 1997 Sep 19;89(1-2):65-74. doi: 10.1016/s0379-0738(97)00114-x.
Caucasoid populations differ from Mongoloids by having a high prevalence of Carabelli's trait and a low prevalence of shovel trait. This study was conducted to investigate the association between the shovel and the Carabelli's traits in a Caucasoid population. The research design sought a Caucasoid population at Milwaukee of Wisconsin in United States. The Caucasoid group selected for study was the European descendant. The effects of sex and age on Carabelli's trait were controlled in this investigation, as was the association between tooth size and Carabelli's trait. Results show that males were more likely to have Carabelli's trait expressed on teeth than females. The buccolingual diameter of Carabelli's trait teeth was larger than that of teeth without the trait. After adjusting for sex, age, and tooth size, the existence of the shovel trait decreased the likelihood of having Carabelli's trait which shows an significant effect.
高加索人种与蒙古人种的不同之处在于，卡氏特征的患病率较高，而铲形特征的患病率较低。本研究旨在调查高加索人群中铲形特征与卡氏特征之间的关联。研究设计在美国威斯康星州密尔沃基市寻找高加索人群。选定进行研究的高加索群体是欧洲后裔。在这项调查中，控制了性别和年龄对卡氏特征的影响，以及牙齿大小与卡氏特征之间的关联。结果表明，男性比女性更有可能在牙齿上表现出卡氏特征。有卡氏特征的牙齿的颊舌径大于没有该特征的牙齿。在调整了性别、年龄和牙齿大小后，铲形特征的存在降低了出现卡氏特征的可能性，这显示出显著的影响。
