Table 1.

Descriptive Statistics of Measures Included in Analyses and Test of Differences Between Participants With and Without Dopamine Signaling Polygenic Scores.

	PGS Present (N=115)				PGS Absent (N=50)				P-Value	Full Sample (N=165)
Measures	Min	Max	Mean	Std. Dev.	Min	Max	Mean	Std. Dev.	T-test	Min	Max	Mean	Std. Dev
Age	18	22	19.86	1.18	18	22	20.16	1.30	0.15	18	22	19.95	1.22
BMI	17.48	43.38	23.55	3.44	18.73	29.82	23.18	2.67	0.50	17.48	43.38	23.44	3.22
mYFAS	0	16	5.71	3.74	0	13	5.92	3.57	0.74	0	16	5.78	3.68
Right VS	−0.45	0.44	0.07	0.16	−0.48	0.74	0.09	0.20	0.50	−0.48	0.74	0.07	0.17
Left VS	−0.24	1.12	0.09	0.17	−0.18	0.43	0.08	0.13	0.55	−0.24	1.12	0.09	0.16
PGS	0	3	1.51	0.68
	% Sample				% Sample				X2	% Sample
Sex
Male	43.5				48.0				0.59	44.8
Female	56.5				52.0					55.2

Note. “PGS Present” refers to the 115 participants without missing PGS data. “PGS Absent” refers to the 50 participants with missing PGS data. “Full Sample” refers to the 165 participants with and without missing PGS data. The P-value column refers to independent samples t- and chi-square tests that compare differences between the PGS present (N=115) and PGS absent (N=50) samples on measures included in subsequent analyses. BMI = body mass index; mYFAS = Modified Yale Food Addiction Scale; VS = ventral striatum; PGS = polygenic scores.