Table 2.

Cox Proportional hazards Regression Model for overall death after initial surgical diagnosis in women with stage I-III adenocarcinoma of the breast.

Variables	Hazard Ratio (Confidence Intervals)	p (Pearson Chi Square)
Race (Caucasian as base)
African American	1.36(1.34-1.39)	0
Native American	1.40(1.27-1.53)	3.68×10-12
Asian	0.82(0.80-0.85)	0
Hawaiian or Pacific Islander	0.72(0.65-0.79)	7.14×10-11
Age (years, 50 years as base)
20	1.32 (1.08-1.59)	0.0056
30	1.24 (1.18-1.31)	0
40	1.01 (0.98-1.04)	N.S.*
60	1.40 (1.37-1.43)	0
70	2.58 (2.52-2.65)	0
80	5.17 (5.05-5.30)	0
90	10.97 (10.62-11.35)	0
Stage (Stage I as base)
II	1.53 (1.51-1.55)	0
III	3.41 (3.35-3.48)	0
Grade (Grade 1 as base)
2	1.20 (1.17-1.22)	0
3	1.49 (1.46-1.53)	0
ER status (ER positive as base)
Negative	1.27 (1.25-1.30)	0
PR status (PR positive as base)
Negative	1.16 (1.14-1.18)	0
Marital status (single as base)
Married	0.80 (0.78-0.81)	0
Separated	1.08 (1.01-1.17)	0.0361
Divorced	0.97 (0.94-1.00)	N.S.
Widowed	1.05 (1.03-1.08)	7.8 x 10-5
Laterality (right as base)
Left	1.01 (1.00-1.02)	N.S.

*Not Significant