Environmental Health

Table 3 Association between head and neck cancer and exposure to chlorinated solvents. Mutually adjusted ORs

From: Occupational exposure to chlorinated solvents and risk of head and neck cancer in men: a population-based case-control study in France

	PCE			TCE			MC			CF			CT
Exposure	Co	Ca	OR^a [95%CI]	Co	Ca	OR^a [95%CI]	Co	Ca	OR^a [95%CI]	Co	Ca	OR^a [95%CI]	Co	Ca	OR^a [95%CI]
Never	2581	1635	1	1686	938	1	2432	1508	1	2619	1691	1	2622	1686	1
Ever	89	70	1.17 [0.73 to 1.87]	984	767	0.93 [0.76 to 1.14]	238	197	0.95 [0.69 to 1.31]	51	14	0.80 [0.25 to 2.52]	48	19	0.69 [0.25 to 1.90]
CEI
Low	44	36	1.20 [0.63 to 2.29]	494	389	0.95 [0.75 to 1.20]	114	107	1.10 [0.72 to 1.69]	25	5	0.70 [0.15 to 3.17]	24	7	0.47 [0.14 to 1.55]
Medium	34	20	0.91 [0.40 to 2.08]	395	312	0.95 [0.73 to 1.23]	100	63	0.68 [0.42 to 1.10]	26	9	0.68 [0.14 to 3.21]	24	12	1.05 [0.24 to 4.58]
High	11	14	2.43 [0.83 to 7.08]	95	66	0.76 [0.49 to 1.19]	24	27	1.41 [0.68 to 2.94]	26	9	0.68 [0.14 to 3.21]	24	12	1.05 [0.24 to 4.58]
p for trend			0.25			0.27			0.33			0.03			0.53

Abbreviations PCE perchloroethylene, TCE trichloroethylene, MC methylene chloride, CF chloroform, CT carbon tetrachloride, OR odds ratio, CI confidence interval, CEI cumulative exposure index, Ca cases, Co controls
^aOR adjusted for age at interview, residence area, alcohol consumption, smoking status, frequency and duration of smoking, exposure to asbestos, exposure to other chlorinated solvents

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ISSN: 1476-069X

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