TABLE 3.

Standardized Mortality Ratios and Standardized Rate Ratios for Select Underlying Causes of Death, Stratified by Asbestos Exposure Category

Cause	Exposure Category	Obs	Exp	SMR (95% CI)	SRR (95% CI)
Lung cancer	WRG worker	21	11.89	1.77 (1.09, 2.70)	2.83 (1.10, 7.25)
	Secondary contractor	6	12.15	0.49 (0.18, 1.07)	0.44 (0.19, 1.03)
	Other asbestos occupation	35	35.14	1.00 (0.69, 1.39)	1.69 (1.04, 2.75)
	Household contact	15	15.83	0.95 (0.53, 1.56)	1.29 (0.56, 3.00)
	Resident	46	62.73	0.73 (0.54, 0.98)	1
Mesothelioma	WRG worker	8	0.28	28.58 (12.34, 56.32)	15.12 (3.32, 68.90)
	Secondary contractor	0	0.28	0 (0.00, 13.10)	–
	Other asbestos occupation	3	0.73	4.12 (0.85, 12.03)	1.19 (0.26, 5.45)
	Household contact	0	0.18	0 (0.00, 20.18)	–
	Resident	4	0.94	4.25 (1.16, 10.89)	1
Asbestosis	WRG worker	12	0.07	179.79 (92.79, 314.08)	2.42 (1.11, 5.26)
	Secondary contractor	8	0.06	125.62 (54.24, 247.53)	2.10 (0.87, 5.06)
	Other asbestos occupation	13	0.16	82.11 (43.68, 140.41)	1.16 (0.55, 2.46)
	Household contact	13	0.02	558.46 (297.07, 955.05)	2.58 (1.01, 6.58)
	Resident	16	0.17	93.15 (53.21, 151.28)	1
Other musculoskeletal disease	WRG worker	1	0.23	4.27 (0.11, 23.78)	0.44 (0.06, 3.46)
	Secondary contractor	1	0.22	4.46 (0.11, 24.83)	0.43 (0.05, 3.39)
	Other asbestos occupation	3	0.87	3.44 (0.71, 10.07)	1.56 (0.42, 5.77)
	Household contact	2	0.75	2.68 (0.32, 9.68)	0.52 (0.11, 2.40)
	Resident	10	2.53	3.96 (1.90, 7.27)	1

Statistically significant (P < 0.05) SMRs and SRRs are in bold font. CI, confidence interval; SMRs, standardized mortality ratios; SRRs, standardized rate ratios. Person-years for each exposure category: WRG worker 6,005; secondary contractor 6,821; other asbestos occupation 26,044; household contact 17,066; resident 69,855.