Table 2.

Minor allele frequency, puff volume and demographic characteristics by racial and ethnic group. Means are presented for puff volumes and demographic values with standard deviation expressed in parentheses. CPD = cigarettes per day.

			Race
	Minor Allele	Caucasian	African American
N (% of sample)		52 (78.79)	12 (18.18)
MAF
rs16969968	A (A/G)	0.25	0.08
rs11637635	A (A/G)	0.48	0.25
rs17408276	C (C/T)	0.48	0.13
rs3829787	A (A/G)	0.48	0.08
rs4275821	C (C/T)	0.48	0.17
rs569207	A (A/G)	0.20	0.25
rs588765	T (T/C)	0.54	0.29
rs637137	A (A/T)	0.20	0.25
rs684513	G (G/C)	0.16	0.13
Demographic
Age		39.40 (12.15)	42.42 (12.34)
CPD		22.17 (6.35)	24.42 (8.53)
FTND		5.48 (1.80)	6.92 (1.62)
Puff Volume
Nicotine		500.69 (167.46)	522.61 (106.37)
Placebo		530.881 (118.70)	639.96 (124.60)
All		520.36 (116.66)	560.59 (126.44)
		Ethnicity
American Indian or Alaskan Native		Non-Hispanic	Hispanic
1 (1.52)		58 (87.88)	7 (10.61)
0.50		0.22	0.21
0.50		0.45	0.43
0.50		0.42	0.43
0.50		0.42	0.43
0.50		0.44	0.43
0.00		0.19	0.29
0.50		0.51	0.43
0.00		0.19	0.29
0.00		0.14	0.29
32.00		39.67 (11.90)	38.29 (15.11)
25.00		22.48 (6.67)	22.71 (8.56)
9.00		5.83 (1.83)	5.29 (2.43)
638.14		516.53 (160.09)	413.02 (106.19)
590.31		555.83 (119.87)	483.11 (149.06)
614.22		538.20 (115.17)	447.17 (126.57)