. Author manuscript; available in PMC: 2014 Dec 1.

Published in final edited form as: Occup Environ Med. 2013 Sep 27;70(12):858–863. doi: 10.1136/oemed-2013-101528

Table 2.

Self-reported occupational exposure of men to asbestos and head and neck squamous cell carcinoma (HNSCC) by primary tumor site, for any occupational asbestos exposure and by duration spent at an asbestos-exposed occupation.

	Primary Tumor Site

	Oral Cavity		Pharynx		Larynx

Occupational Asbestos Exposure	n_cases/n_control	OR^a (95% CI)	n_cases/n_control	OR^a (95% CI)	n_cases/n_control	OR^a (95% CI)
Never occupationally exposed	168/654	reference	233/654	reference	83/654	reference
Ever occupationally exposed	55/203	0.86 (0.59–1.24)	100/203	1.41 (1.01–1.97)	35/203	1.04 (0.64–1.67)
Per decade of exposure	52/202	0.92 (0.80–1.05)	98/202	1.10 (0.99–1.23)	33/202	1.07 (0.93–1.24)

Abbreviations: OR = odds ratio; CI: confidence interval

Adjusted for age, race, smoking, alcohol consumption, education, income, and HPV16 serology