. Author manuscript; available in PMC: 2012 Dec 1.

Published in final edited form as: Cancer. 2011 Aug 8;117(23):5377–5382. doi: 10.1002/cncr.26235

Table 3.

Odds ratios and 95% confidence intervals for head and neck cancer and time to first cigarette in ever smokers by tumor site, adjusting for pack-years of smoking

Time to first cigarette*	OR for floor of mouth	95% CI	OR for palate	95% CI	OR for anterior and base of tongue	95% CI	OR for pharynx	95% CI
>60 min.	1.0		1.0		1.0		1.0
31–60 min.	1.19	0.63–2.27	1.43	0.68–3.02	1.01	0.67–1.54	2.07	1.02–4.18
1–30 min.	1.76	1.0–3.0	1.87	0.82–4.23	1.21	0.75–1.94	2.19	0.99–4.83
Trend X²	P<0.05		P=0.45		P=0.96		P=0.06

Odds ratios adjusted for age, sex, race, education, alcohol consumption, and body mass index.