Differences in Fingerprint Patterns and Axial Triradius Digital Angles between Normal and Autistic Children’s Parents of Javanese Ethnic

Abstract

Autism is a serious neurological development disorder that affects the way of communicating and relating to others. Genetic factors influence fingerprint patterns and axial triradius digital (ATD) angles. The aim of this study was to determine the difference in fingerprint patterns and ATD angles between autistic children’s parents and normal children’s parents of Javanese ethnic in Surabaya. This cross-sectional study used 24 autistic children’s parents and 24 normal children’s parents. The differences in fingerprint patterns will be analyzed using Chi-Square Test. The differences in right ATD angle will be analyzed using Independent Sample T-Test and the left using MannWhitney Test. The results of this study obtained the frequency of fingerprint pattern types of autistic subjects consisted of whorl (20.66%), ulnar loop (17.36%), double loop (2.26%), radial loop (0.35%), tented arch (0.69%), arch (0.35%). Normal subjects consisted of whorl (10.42%), ulnar loop (23.26%), double loop (2.60%), radial loop (0.69%), tented arch (0.87%), arch (3.82%). The mean of right ATD angle for autistic subjects was ± 43.17, normal subjects was ± 40.62. The mean of left ATD angle for autistic subjects was ± 42.83, normal subjects was ± 40.58. Statistical analysis showed there were significant differences of fingerprint patterns in digitidexter IV (p = 0.018) and digiti sinister II (p = 0.010). Most of autistic subjects had whorl patterns and most of normal subject had ulnar loop patterns. The right ATD angle (p = 0.277) and the left ATD angle (p = 0.125) were not significant differences between autistic and normal children’s parents.