Table 3

Relative mortality ratios and 95% CIs for only those male volunteer firefighters who attended incidents to 30 November 2011 by the number of incidents and incident types (adjusted for age and calendar period)

Causes of death	Groups*	O	All incidents	O	All fire incidents	O	Structural fire incidents	O	Landscape fire incidents	O	Vehicle fire incidents
All causes of death combined	Baseline	2590	Ref	2595	Ref	2645	Ref	2220	Ref	2589	Ref
	Group 2	117	1.04 (0.86 to 1.25)	118	1.00 (0.83 to 1.21)	78	1.18 (0.94 to 1.47)	399	1.06 (0.95to 1.18)	123	1.04 (0.87 to 1.25)
	Group 3	61	1.16 (0.90 to 1.50)	55	1.19 (0.91 to 1.56)	45	1.31 (0.98 to 1.76)	149	1.08 (0.91 to 1.27)	56	1.29 (0.99 to 1.68)
All malignancies	Baseline	1082	Ref	1084	Ref	1108	Ref	926	Ref	1081	Ref
	Group 2	58	1.23 (0.95 to 1.61)	60	1.21 (0.93 to 1.56)	38	1.38 (1.00 to 1.91)	171	1.08 (0.91 to 1.27)	63	1.29 (1.00 to 1.66)
	Group 3	26	1.16 (0.79 to 1.72)	22	1.11 (0.73 to 1.69)	20	1.37 (0.88 to 2.13)	69	1.15 (0.90 to 1.47)	22	1.19 (0.78 to 1.81)
All nervous system	Baseline	57	Ref	57	Ref	58	Ref	49	Ref	56	Ref
	Group 2	2	0.80 (0.20 to 3.29)	2	0.77 (0.19 to 3.17)	1	0.69 (0.10 to 4.98)	9	1.08 (0.53 to 2.21)	2	0.78 (0.19 to 3.21)
	Group 3	2	1.73 (0.42 to 7.11)	2	1.96 (0.48 to 8.07)	2	2.66 (0.65 to 10.88)	3	0.98 (0.31 to 3.16)	3	3.18 (0.99 to 10.17)
All circulatory	Baseline	673	Ref	675	Ref	684	Ref	558	Ref	679	Ref
	Group 2	29	0.99 (0.68 to 1.43)	28	0.90 (0.62 to 1.31)	25	1.47 (0.99 to 2.19)	116	1.22 (1.00 to 1.49)	23	0.75 (0.50 to 1.14)
	Group 3	22	1.60 (1.05 to 2.45)	21	1.71 (1.11 to 2.64)	15	1.67 (1.00 to 2.78)	50	1.38 (1.03 to 1.84)	22	1.95 (1.28 to 2.99)
IHD	Baseline	381	Ref	382	Ref	386	Ref	309	Ref	381	Ref
	Group 2	15	0.90 (0.54 to 1.50)	16	0.90 (0.55 to 1.49)	15	1.54 (0.92 to 2.58)	71	1.33 (1.03 to 1.72)	15	0.87 (0.52 to 1.45)
	Group 3	15	1.91 (1.14 to 3.20)	13	1.86 (1.07 to 3.23)	10	1.95 (1.04 to 3.64)	31	1.54 (1.06 to 2.23)	15	2.34 (1.39 to 3.92)
All respiratory	Group 2	119	Ref	119	Ref	121	Ref	108	Ref	120	Ref
	Group 3	4	0.79 (0.29 to 2.13)	4	0.73 (0.27 to 1.99)	3	1.05 (0.33 to 3.31)	12	0.67 (0.37 to 1.22)	3	0.57 (0.18 to 1.80)
	Baseline	1	0.42 (0.06 to 3.03)	1	0.47 (0.07 to 3.34)	0	–	4	0.56 (0.21 to 1.52)	1	0.53 (0.07to3.81)
COPD	Baseline	61	Ref	60	Ref	61	Ref	53	Ref	61	Ref
	Group 2	1	0.39 (0.05 to 2.79)	2	0.73 (0.18 to 2.99)	2	1.41 (0.35 to 5.78)	7	0.81 (0.37 to 1.77)	1	0.38 (0.05 to 2.74)
	Group 3	1	0.83 (0.12 to 6.02)	1	0.93 (0.13 to 6.71)	0	-	3	0.85 (0.27 to 2.73)	1	1.06 (0.15 to 7.67)
All digestive	Baseline	63	Ref	62	Ref	64	Ref	59	Ref	64	Ref
	Group 2	3	1.07 (0.34 to 3.42)	5	1.75 (0.70 to 4.35)	4	2.45 (0.89 to 6.72)	5	0.48 (0.19 to 1.20)	4	1.34 (0.49 to 3.69)
	Group 3	4	3.05 (1.11 to 8.38)	3	2.64 (0.83 to 8.43)	2	2.34 (0.57 to 9.56)	6	1.59 (0.69 to 3.70)	2	1.80 (0.44 to 7.34)
All injuries and trauma	Baseline	387	Ref	389	Ref	395	Ref	341	Ref	384	Ref
	Group 2	12	0.75 (0.42 to 1.34)	10	0.65 (0.34 to 1.21)	4	0.40 (0.15 to 1.08)	54	1.06 (0.79 to 1.41)	15	0.86 (0.51 to 1.44)
	Group 3	6	0.90 (0.40 to 2.02)	6	1.12 (0.50 to 2.52)	6	1.42 (0.63 to 3.19)	10	0.68 (0.36 to 1.27)	6	1.00 (0.45 to 2.24)
Suicide	Baseline	123	Ref	122	Ref	127	Ref	101	Ref	123	Ref
	Group 2	5	0.98 (0.04 to 2.39)	6	1.23 (0.54 to 2.80)	1	0.31 (0.04 to 2.19)	23	1.50 (0.95 to 2.36)	5	0.88 (0.36 to 2.16)
	Group 3	2	0.93 (0.23 to 3.75)	2	1.18 (0.29 to 4.77)	2	1.45 (0.36 to 5.87)	6	1.39 (0.61 to 3.19)	2	1.01 (0.25 to 4.08)

COPD, chronic obstructive pulmonary disease; IHD, ischaemic heart disease; O, observed.
*Cut points are based on the tertiles of cumulative incidents for paid firefighters (see online supplementary table S1).