Table 4

Cancer incidence among 16 422 male Nordic firefighters, by period of follow-up

Cancer site	1961–1975			1976–1990			1991–2005
Cancer site	Obs.	SIR	95% CI	Obs.	SIR	95% CI	Obs.	SIR	95% CI
All cancers	196	1.00	0.86 to 1.15	838	1.11	1.03 to 1.19	1502	1.05	1.00 to 1.11
Lung	27	0.92	0.60 to 1.33	109	0.90	0.74 to 1.09	174	1.04	0.89 to 1.21
Adenocarcinoma	4	1.19	0.32 to 3.05	26	1.27	0.83 to 1.87	50	1.31	0.97 to 1.72
Skin melanoma	12	1.94	1.00 to 3.39	37	1.39	0.98 to 1.92	60	1.11	0.84 to 1.42
Non-melanoma skin	2	0.55	0.07 to 1.98	27	1.28	0.84 to 1.86	88	1.39	1.11 to 1.71
Mesothelioma	0*	0.00	0.00 to 10.5	5	1.56	0.51 to 3.64	12	1.62	0.84 to 2.83
Prostate	20	0.97	0.59 to 1.49	145	1.10	0.93 to 1.29	495	1.15	1.05 to 1.26
Non-Hodgkin lymphoma	1	0.23	0.01 to 1.29	26	1.12	0.73 to 1.64	55	1.08	0.81 to 1.40
Multiple myeloma	4	1.17	0.32 to 2.99	11	0.87	0.44 to 1.57	26	1.28	0.84 to 1.88