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To the Editor:—
In the recent article by Takashina and Yorifuji entitled, "Palmar Dermatoglyphics in Heart Disease" (197:689, 1966), authors report distal placement of the palmar axial triradius at a highly significant level in a group of individuals with congenital heart disease as compared to their control groups. We would like to comment on two aspects of their study.First, the authors combine the data from both male and female subjects in making their comparison between groups. This would not be inappropriate if the frequency of distal palmar axial triradii were similar in both males and females. However, from the data presented in Table 2 of their paper, it is clear that the frequency of distal palmar axial triradii in control females is approximately seven times higher than that in control males. In fact, the females in the control group have a higher frequency of distal palmar axial triradii
Stone EF, Kronmal R. Palmar Dermatoglyphics In Heart Disease. JAMA. 1966;198(8):954. doi:10.1001/jama.1966.03110210204061