Table 5

Adjusted^5-150 OR (95% CI) between oesophageal cancer and exposure to selected substances, with three statistical models, by histological subtype, Montreal, 1979–85

		All histological subtypes			Squamous cell carcinoma
		n_exp^5-151	OR		95% CI	n_exp	OR	95% CI
Model 1:
Carbon black	9	1.7	0.8 to 3.8	8	2.9	1.2 to 7.1
Sulphuric acid	15	2.2	1.1 to 4.2	10	2.8	1.2 to 6.2
Model 2:
Carbon black	9	1.9	0.8 to 4.7	8	2.6	1.0 to 7.0
Sulphuric acid	15	2.3	1.2 to 4.4	10	2.7	1.2 to 6.1
Toluene	13	0.8	0.4 to 1.6	12	1.2	0.5 to 2.7
Model 3:
Carbon black	9	2.1	0.8 to 5.3	8	2.6	0.9 to 7.2
Sulphuric acid	15	2.7	1.3 to 5.5	10	3.0	1.2 to 7.2
Toluene	13	0.8	0.4 to 1.7	12	1.1	0.4 to 2.5
Chrysotile asbestos	18	1.4	0.7 to 2.7	14	1.7	0.8 to 3.6
Other paints and varnishes^5-151	14	1.4	0.7 to 2.7	12	1.7	0.8 to 3.8
Iron compounds	18	0.6	0.3 to 1.1	15	0.7	0.3 to 1.7

↵5-150 Adjusted for age, respondent status, birthplace, educational level, beer consumption, spirits consumption, β-carotene index, cigarette-years, smoking patterns.
↵5-151 This group comprises paints used on surfaces other than metal and varnishes used on surfaces other than wood.
n_exp=Number of exposed cases.