. 2023 Nov 16;46(2):170–180. doi: 10.1097/FTD.0000000000001154

TABLE 1.

C/D Ratios in Adults According to Ancestry (Modified From de Leon et al²⁶)

	Asian Ancestry³⁷/Native Americans³⁸		European ancestry³⁹
	N	Clozapine C/D ratio	N	Clozapine C/D ratio
	N	(ng/mL per mg/d)	N	(ng/mL per mg/d)
♀ nonsmokers	252	2.10	218	1.48
♂ nonsmokers	227	1.68	340	1.18
♀ smokers	16	1.22	269	0.99
♂ smokers	137	1.30	546	0.95