Gender differentiation by finger ridge count among South Indian population

Sex differences in the thumbprint ridge density in a central Indian population

“…Thus, even when the areas analysed for thumbprint ridge density in our study differ from that of the earlier studies, [2][3][4][5][6][12][13][14][15][16][17][18][22][23][24][25][26][27][28] the basic quantitative differences remain the same, i.e., females have a higher finger (thumb) print ridge density than males which is in accordance with earlier studies on different ethnic groups. 2,[5][6][7][8][13][14][15][16][17][18][22][23][24][25][26][27][28] Ridge thickness and furrows are the two important factors which determine the density of ridges. Cummins et al, 24 Ohler et al, 25 Kralik et al 26 and Moore 28 worked on the ridge thickness in fingerprints and showed that males have coarser finger ridges than females which suggests that males will have less ridges in a given area than females and thus a lower ridge density.…”

“…14 Subjects with any evidence of disease and injury of the fingertips that was likely to alter the fingerprint pattern (leprosy, scars of the fingertips, lacerations) were excluded. 17 The selected subjects were asked to wash and dry their hands. A clean fingerprint plate was smeared with Kores Ò thumb impression ink (black), with the help of a roller.…”

“…Consequently, these two characteristics of the fingerprints have been widely studied by the researchers and analysts. [2][3][4][5][6][12][13][14][15][16][17][18] The ever increasing frequency of crime has made fingerprinting an indispensable tool in the hands of investigating officers. If the sex of the individual could be established with certainty, the burden of the investigating officer would be reduced by half.…”

“…Fingerprint ridge density has been shown to be sexually dimorphic in Spanish Caucasians, 2 Spanish populations 3-5 the Sardinian population, 6 Egyptian, 16 Chinese, Malaysian 15 and some Indian populations 14 including the south Indian population, 17 Indo-Mauritian population, 18 etc. Other fingertip features; 16 palm print ridge density 19 and footprint ridge density 20 were also studied in the past for sex differences.…”

Variability of Finger Ridge Density among Thai Adolescents

“…Our result is concordant to Gutierrez-Redomero et al [12] which have been reported that female have higher RD than male when older than 12 years, but not when younger. Table 4 shows variability of means RD across various populations [4][5][6][7][13][14] including Thai adults [15] and Amerindian ethnic adolescents [16]. Females possess RDs statistically greater than those of males in any population except for Amerindian children [16].…”