Table 2

Occupational exposure: frequency distribution of occupational exposures increasing the risk for lung cancer in male cases and controls (adjusted odds ratios (OR) and 95% confidence intervals (CI))

Exposure*		Cases (n = 201)		Controls (n = 626)		OR†	95% CI
Exposure*		n	%	n	%	OR†	95% CI
*Exposure to risk occupations was assessed by filling in a check list of 23 occupations considered to increase the risk for lung cancer according to the International Agency for Research on Cancer (IARC).²
†Odds ratios (exposed v non-exposed) adjusted for age, year of death, and smoking habits (number of cigarettes per day).
Asphalt	No	176	91.7	583	95.4	1.00	–
	Yes	16	8.3	28	4.6	1.66	0.86 to 3.20
Coal	No	195	98.5	594	95.7	1.00	–
	Yes	3	1.5	27	4.4	0.30	0.09 to 1.03
Paint	No	173	87.4	540	89.1	1.00	–
	Yes	25	12.6	66	10.9	1.05	0.63 to 1.74
Asbestos	No	167	90.8	583	97.2	1.00	–
	Yes	17	9.2	17	2.8	3.45	1.68 to 7.07
Welder	No	176	89.3	574	93.0	1.00	–
	Yes	21	10.7	43	7.0	1.55	0.88 to 2.72
Construction	No	160	82.1	483	78.5	1.00	–
	Yes	35	18.0	132	21.5	0.70	0.46 to 1.07
Truck driver	No	185	92.5	565	90.7	1.00	–
	Yes	15	7.5	58	9.3	0.76	0.41 to 1.39
Garage/filling station	No	197	98.5	602	96.3	1.00	–
	Yes	3	1.5	23	3.7	0.34	0.10 to 1.15
Leather	No	196	98.5	617	98.7	1.00	–
	Yes	3	1.5	8	1.3	1.42	0.34 to 5.86
Foundry	No	192	97.5	616	98.6	1.00	–
	Yes	5	2.5	9	1.4	2.00	0.63 to 6.35
Butcher	No	194	97.0	614	98.2	1.00	–
	Yes	6	3.0	11	1.8	1.64	0.57 to 4.71
Seaman	No	160	80.4	548	87.8	1.00	–
	Yes	39	19.6	76	12.2	1.53	0.99 to 2.38
Longshoreman	No	160	80.8	524	84.1	1.00	–
	Yes	38	19.2	99	15.9	1.14	0.74 to 1.75
Cement	No	186	94.4	581	93.6	1.00	–
	Yes	11	5.6	40	6.4	0.82	0.40 to 1.67
Power plant	No	173	86.9	555	89.2	1.00	–
	Yes	26	13.1	67	10.8	1.10	0.66 to 1.82