Table 4.

Age adjusted relative risk for all cancers, prostate cancer and malignant melanoma, by employment years, cumulative air hours, cumulative mSv, and cumulative mSv up to age of 40 years

	All primary cancers (C00-C97)			Prostate cancer (C61)			Malignant melanoma (C43)
Exposure	No	Yes		No	Yes		No	Yes
metrics	n = 474	n = 77	RR (95% CI)	n = 524	n = 27	RR (95% CI)	n = 544	n = 7	RR (95% CI)
Employment years
Unexposed	232	33	1.00 (Referent)	253	12	1.00 (Referent)	264	1	1.00 (Referent)
<15	127	5	1.73 (0.51 to 5.18)	132	0	−	131	1	9.33 (0.22 to 596.01)
15+	115	39	2.34 (1.45 to 3.80)	139	15	2.40 (1.10 to 5.23)	149	5	9.55 (1.49 to 187.47)
p-trend			0.002			0.05			0.02
Cumulative air hours
Unexposed	232	33	1.00 (Referent)	253	12	1.00 (Referent)	264	1	1.00 (Referent)
<10,000	163	7	1.40 (0.49 to 3.73)	170	0	−	169	1	3.27 (0.09 to 160.46)
10,000+	79	37	2.41 (1.50 to 3.90)	101	15	2.61 (1.22 to 5.60)	111	5	10.29 (1.66 to 197.12)
p-trend			0.0001			0.01			0.004
Cumulative mSv
Unexposed	232	33	1.00 (Referent)	253	12	1.00 (Referent)	264	1	1.00 (Referent)
<25	145	6	1.36 (0.46 to 3.56)	151	0	−	150	1	5.07 (0.14 to 201.23)
25+	97	38	2.42 (1.50 to 3.92)	120	15	2.57 (1.18 to 5.56)	130	5	9.88 (1.57 to 190.78)
p-trend			0.0005			0.02			0.009
Cumulative mSv up to age of 40 years
Unexposed	232	33	1.00 (Referent)	253	12	1.00 (Referent)	264	1	1.00 (Referent)
<5	120	5	1.53 (0.47 to 4.20)	125	0	−	125	0	−
5+	122	39	2.37 (1.47 to 3.85)	146	15	2.47 (1.13 to 5.41)	155	6	10.34 (1.23 to 86.61)
p-trend			0.003			0.06			0.005

Abbreviations: MilliSievert (mSv), relative risk (RR), confidence interval (CI)