Examining smoking-induced differential gene expression changes in buccal mucosa

BMC Medical Genomics

Table 1 Smoker vs. nonsmoker demographics and nicotine/cotinine levels

Subjects	Group	Age	Ethnicity	Nicotine ng/ml	Cotinine ng/ml
NS21	nonmoker	41	cau	ND	ND
NS22	nonsmoker	44	cau	ND	ND
NS23	nonsmoker	27	cau	ND	ND
NS24	nonsmoker	53	cau	ND	ND
SM25	smoker	53	cau	990	900
SM26	smoker	47	cau	> 2500	980
SM27	smoker	39	cau	510	2100
SM28	smoker	50	his	> 2500	1000
11Sm*	smoker	50	his	> 2500	1000
12NS*	nonsmoker	44	cau	ND	ND

Shown is the demography of the female study population used in the microarray study. No statistical significance was found when ages of smokers and non-smokers were compared (see results). Also shown are the nicotine and cotinine levels for each subject (see methods).
* 11Sm and 12NS represent repeat sampling of subjects Sm28 and NS22, respectively. (cau, Caucasian; his, Hispanic; ND, not detected)

ISSN: 1755-8794