Table 2.

Correlational analyses of demographics with percent methylation of HTR2A promoter CpG sites.

Healthy Controls
Characteristics	Site -1439	Site -1420	Site -1224	Site -253
Age (R Value, P value)	-0.086, 0.573	-0.111, 0.460	-0.312, <0.05	-0.336, <0.05
Years of Cocaine Use (R value, P Value)	–	–	–	–
Years of Smoking (R value, P Value)	–	–	–	–
Cocaine Users
Characteristics	Site -1439	Site -1420	Site -1224	Site -253
Age (R Value, P value)	-0.078, 0.678	-0.249, 0.156	-0.407, <0.05	-0.269, 0.118
Years of Cocaine Use (R value, P Value)	0.035, 0.822	0.082, 0.587	0.039, 0.779	-0.293, <0.05
Years of Smoking (R value, P Value)	-0.102, 0.593	-0.045, 0.813	-0.365, <0.05	-0.171, 0.319

*p < 0.05 for correlation is bolded and italicized.