Association between Hand Digit Ratio (2D : 4D) and Acute Lymphoblastic Leukemia

Table 2

Comparison of right-hand digit ratio (R2D : 4D), left-hand digit ratio (L2D : 4D), and right-hand minus left-hand digit ratio (DR-L) among patients with acute lymphoblastic leukemia (ALL group) and the control group.

All participants,	ALL group; Mean (SD); 43	Control group; Mean (SD); 86	value	Cohen’s
R2D : 4D	0.9609 (0.0343)	0.9549 (0.0351)	0.292	0.172
L2D : 4D	0.9663 (0.0334)	0.9645 (0.0333)	0.767	0.054
DR-L	−0.0054 (0.0300)	−0.0104 (0.0259)	0.325	0.178
Distribution by gender
Girls,	19	43
R2D : 4D	0.9675 (0.0309)	0.9651 (0.2757)	0.756	0.012
L2D : 4D	0.9723 (0.0308)	0.9701 (0.0314)	0.891	0.071
DR-L	−0.0037 (0.0262)	−0.0050 (0.0239)	0.852	0.052
Boys,	24	43
R2D : 4D	0.9557 (0.0366)	0.9434 (0.0390)	0.211	0.325
L2D : 4D	0.9624 (0.0355)	0.9598 (0.0349)	0.776	0.074
DR-L	−0.0067 (0.0332)	−0.0141 (0.0257)	0.243	0.249

Student’s t-test for unpaired samples.