Table 1. Levels of M₁dG in Smokers’ and Nonsmokers’ Leukocyte DNA.

smokers			nonsmokers
subject no.	DNA yield	M1dG	subject no.	DNA yield	M1dG
	(μg)	(fmol/mg DNA)		(μg)	(fmol/mg DNA)
1	128	2.14	1	61.1	72.1
2	196	6.06	2	49.4	47.9
3	90.7	18.5	3	79.4	37.0
4	200	14.0	4	46.8	75.8
5	164	14.8	5	54.6	95.3
6	99.1	106	6	94.9	132
7	69.4	275	7	67.3	79.9
8	90.2	79.4	8	125	135
9	149	125	9	87.8	134
10	71.3	139	10	124	30.3
11	89.4	220	11	168	93.0
12	132	57.3	12	194	0.714
13	139	48.7	13	209	2.22
14	165	102	14	162	55.9
15	122	120	15	236	27.9
16	160	5.49	16	244	2.82
17	165	13.0	17	69.8	9.83
18	93.1	0.132	18	113	17.7
19	183	16.0	19	199	7.89
20	223	1.14	20	166	251
21	213	3.19	21	155	28.0
22	39.2	73.3	22	140	12.5
23	170	43.1	23	182	17.3
24	204	117	24	158	21.4
25	166	22.9	25	78.7	26.6
mean ± SD	141 ± 50.2	64.9 ± 71.9	mean ± SD	130 ± 60.3	56.5 ± 58.8