Table 3.

Creatinine-adjusted NNK metabolite levels (pmol/mg creatinine) in the urine of smokers (n=180).^a

	NNAL-N-Gluc	(R)-NNAL-O-Gluc	(S)-NNAL-O-Gluc	Total NNAL-Gluc	Free NNAL	Total NNAL
Mean	0.62 ± 0.49	0.59 ± 0.44	0.72 ± 0.50	1.93 ± 1.23	0.78 ± 0.60	2.71 ± 1.61
Range	0.06 - 3.23b	0.10 - 2.78c	0.06 - 2.96d	0.14 - 6.31	0.11- 3.29e	0.26 - 9.45

^aAll concentrations listed are in pmol/mg creatinine (mean ± SD) for 180 metabolite-informative subjects.

^bn=161; 19 subjects were below the detection limit for NNAL-N-Gluc;

^cn=171; 9 subjects were below the detection limit for (R)-NNAL-O-Gluc;

^dn=178; 2 subjects were below the detection limit for (S)-NNAL-O-Gluc;

^en=167; 13 subjects were below the detection limit for free NNAL.