Life Expectancy in Pleural and Peritoneal Mesothelioma

Table 3

Hazard ratios ( values) for variables in the univariate and multivariate Cox proportional hazards regression survival models for pleural and peritoneal mesothelioma.

Variable	Categories	Pleural		Peritoneal
		Univariate	Multivariate	Univariate	Multivariate
Sex	Male	1.324 (<0.001)	1.28 (<0.001)	1.50 (<0.001)	1.38 (0.001)
	Female	1 (ref)	1 (ref)	1 (ref)	1 (ref)
Race	White	1.00 (0.92)	0.97 (0.45)	0.76 (0.026)	0.78 (0.044)
	All other races	1 (ref)	1 (ref)	1 (ref)	1 (ref)
Age (years)	(Continuous)	1.02 (<0.001)	1.02 (<0.001)	1.03 (<0.001)	1.02 (<0.001)
Stage	Localized	1 (ref)	1 (ref)	1 (ref)	1 (ref)
	Regional	1.10 (0.003)	1.36 (<0.0001)	1.37 (0.073)	1.49 (0.026)
	Distant	1.33 (<0.001)	1.38 (<0.001)	1.92 (<0.001)	2.04 (<0.001)
	Missing	1.24 (<0.001)	1.25 (<0.001)	1.352 (0.046)	1.73 (0.001)
Histology	Fibrous (9051)	1.56 (<0.001)	1.58 (<0.001)	2.02 (0.002)	2.17 (0.001)
	Biphasic (9053)	1.44 (<0.001)	1.43 (<0.001)	1.23 (0.25)	1.444 (0.046)
	NOS (9050)	1.33 (<0.001)	1.22 (<0.001)	1.18 (0.021)	1.10 (0.227)
	Epithelial (9052)	1 (ref)	1 (ref)	1 (ref)	1 (ref)
Grade	1 or 2	1 (ref)	Not included	1 (ref)	Not included
	3 or 4	2.21 (<0.001)		4.28 (<0.001)
	Missing	1.59 (<0.001)		2.77 (<0.001)
Diagnosis year	(Continuous)	1.00 (0.001)	0.995 (<0.001)	0.98 (<0.001)	0.98 (<0.001)
Therapy	No radiation or surgery	1 (ref)	1 (ref)	1 (ref)	1 (ref)
	Radiation only	1.22 (<0.001)	1.22 (<0.001)	1.32 (0.168)	1.15 (0.507)
	Surgery only	0.67 (<0.001)	0.70 (<0.001)	0.54 (<0.001)	0.62 (<0.001)
	Radiation and surgery	0.61 (<0.001)	0.70 (<0.001)	0.54 (0.003)	0.58 (0.010)
	Missing	0.84 (0.003)	0.85 (0.007)	0.78 (0.159)	0.80 (0.220)