. Author manuscript; available in PMC: 2015 May 4.

Published in final edited form as: Head Neck. 2012 Jul 17;35(8):1096–1100. doi: 10.1002/hed.23085

TABLE 2.

Tobacco metabolite levels in cases and controls.

Variable	Case	Control	p value
n 1-HOP	30	100
1-HOP, pmol/mg Cr (± SE)	1.82 (± 0.25)	1.08 (± 0.12)	.004
n NNN	27	27
NNN, pmol/mg Cr (± SE)	0.10 (± 0.02)	0.04 (± 0.005)	.014
n NNAL	29	100
NNAL, pmol/mg Cr (± SE)	1.51 (± 0.19)	1.68 (± 0.11)	.48

Abbreviations: 1-HOP, 1-hydroxypyrene; NNN, nitrosonornicotine; NNAL, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol.