Table 3.

CpG factor item loadings on varimax-rotated factors.

CpG ID	CpG name	PC1	PC2	PC3	PC4	h2
DRD2-5	cg14809166	0.93	0.078	0.115	−0.157	0.91
DRD2-9	cg03608783	0.914	0.223	0.148	−0.126	0.923
DRD2-8	cg21141217	0.879	0.136	0.067	−0.109	0.807
DRD2-13	cg23881278	−0.874	−0.044	0.095	0.276	0.851
DRD2-2	cg02198192	0.869	0.275	0.044	−0.132	0.85
DRD2-6	cg16823554	0.85	0.384	−0.008	−0.005	0.87
DRD2-14	cg12758687	−0.701	−0.001	0.157	0.431	0.702
DRD2-10	cg18248586	−0.572	−0.221	−0.052	−0.429	0.563
DRD2-15	cg12176709	−0.09	−0.806	−0.037	0.284	0.739
DRD2-4	cg11323042	0.265	0.738	−0.206	0.243	0.716
DRD2-16	cg20629239	−0.37	−0.677	0.112	0.404	0.771
DRD2-7	cg00525373	0.037	−0.02	−0.819	−0.061	0.677
DRD2-1	cg22404572	−0.049	−0.126	0.79	0.003	0.643
DRD2-11	cg02332042	0.21	−0.039	0.732	0.04	0.583
DRD2-12	cg20016411	−0.197	−0.108	0.172	0.734	0.62
DRD2-3	cg19804476	0.31	0.226	0.153	−0.506	0.427
Eigenvalue		6.912	2.174	1.31	1.254
% variance explained		43.202	13.587	8.189	7.837

h² indicates communalities, boldface indicates items with salient loadings >|0.5|