Table 1.
Fingerprint pattern counts, number of discordant finger pairs, atd-angles, and fluctuating asymmetry of atd-angles for boys with ASD and typically developing boys.
| Trait | Character | ASD boys M (SD) |
Control boys M (SD) |
P value | ES (Cohen's d) |
|---|---|---|---|---|---|
| Fingerprint patterns (Anscombe transformation of counts) | Number of whorls (LH + RH) |
2.52 (1.43) |
2.42 (1.42) |
0.75 | 0.07 |
| Number of arches (LH + RH) |
1.53 (0.56) |
1.74 (1.04) |
0.23 | −0.25 | |
| Number of discordant finger pairs | 2.24 (0.88) |
1.80 (0.72) |
0.01 | 0.55 | |
|
| |||||
|
Atd-angles (log10 degrees) |
(log10LH + log10 RH)/2 | 1.61° (0.033°) |
1.62° (0.048°) |
0.21 | −0.38 |
| |log10LH − log10 RH| | 0.03° (0.05°) |
0.02° (0.02°) |
0.33 | 0.30 | |
ASD = Autism Spectrum Disorders; ES = effect size; LH = left hand; M = mean (SD = standard deviation); RH = right hand.