Table III.

Cancer-specific RRs for frequency of CAs

Cancer site (ICD IX)	CA tertile
	Low a	Medium			High
	Cases	Cases	RR	95% CI	Cases	RR	95% CI
All cancers (140–208)	152	240	1.31	1.07–1.60	283	1.41	1.16–1.72
Mouth and pharynx (140–149)	7	5	0.55	0.17–1.74	15	1.47	0.60–3.63
Stomach (151)	5	7	1.17	0.37–3.70	20	3.13	1.17–8.39
Colon and rectum (153–154)	20	31	1.24	0.71–2.18	37	1.30	0.75–2.24
Liver and biliary ducts (155–156)	4	4	0.85	0.21–3.42	11	2.13	0.68–6.74
Pancreas (157)	3	6	1.66	0.42–6.66	7	1.69	0.44–6.58
Lung (162)	22	28	0.98	0.56–1.71	49	1.37	0.83–2.27
Melanoma (172)	3	6	1.74	0.43–7.01	9	2.65	0.71–9.92
Breast (174)	22	31	1.23	0.71–2.13	23	0.95	0.53–1.72
Female genital tract (179–183)	11	24	1.81	0.88–3.69	17	1.36	0.63–2.91
Prostate (185)	10	9	0.82	0.33–2.01	26	1.92	0.91–4.02
Bladder and kidney (188–189)	19	35	1.50	0.86–2.63	22	0.81	0.44–1.50
Lymphohaematopoietic system (200–208)	11	18	1.40	0.66–2.97	17	1.29	0.60–2.76

ICD, International Classification of Diseases.

RRs were adjusted for country, gender, age, time since test, job exposure and smoking habit.

^aReference category.