Table 1. Mean 2D:4D and Dr–l values in individuals with unproblematic vs. at-risk/addicted video gaming behavior.

	unproblematic (n = 27)		at-risk/addicted (n = 27)
	mean ± SD	min – max	mean ± SD	min – max
2D:4D mean	0.979±0.024	0.939 – 1.029	0.966±0.024	0.929 – 1.009
2D:4D right	0.977±0.025	0.928 – 1.030	0.967±0.018	0.942 – 1.011
2D:4D left	0.982±0.025	0.926 – 1.034	0.966±0.020	0.918 – 1.017
Dr–l	–0.0051±0.0157	–0.0354 – 0.0302	0.0012±0.0142	–0.0165 – 0.0358
CSAS	26.2±4.3	18 – 33	40.5±5.3	35 – 51
Age (years)	19.1±1.2	18 – 21	18.6±0.9	18 – 21
Level of Education
	n		n
Higher educational level (Abitur or higher)	14		10
Secondary schooling (Realschule)	12		12
Lower secondary schooling (Hauptschule)	1		4
No graduation	0		1

Dr–l =  right 2D:4D – left 2D:4D.