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Table 4 Hazard ratios and 95% confidence intervals derived from Cox regression for race/ethnicity after adjustment for age, year of diagnosis, grade, and ER/PR/HER2 subtype*

From: Disparities in race/ethnicity and socioeconomic status: risk of mortality of breast cancer patients in the California Cancer Registry, 2000–2010

Stage 1 HR (95% CI)
SES  
 Lowest/least affluent (n = 14,011)  
    White 1.00
    Black 1.19 (0.85, 1.65)
    Hispanic 0.96 (0.74, 1.13)
    API 0.69 (0.43, 1.11)
 Intermediate (n = 11,839)  
    White 1.00
    Black 0.88 (0.51, 1.54)
    Hispanic 0.93 (0.64, 1.36)
    API 0.92 (0.59, 1.43)
 Highest/most affluent (n = 32,945)  
    White 1.00
    Black 1.47 (0.96, 2.27)
    Hispanic 1.05 (0.76, 1.44)
    API 0.84 (0.63, 1.13)
Stage 2  
SES  
 Lowest/least affluent (14,063)  
    White 1.00
    Black 1.14 (0.97, 1.38)
    Hispanic 0.85 (0.75, 0.97)
    API 0.85 (0.69, 1.04)
Intermediate (10,141)  
    White 1.00
    Black 1.66 (1.34, 2.06)
    Hispanic 1.11 (0.92, 1.32)
    API 0.80 (0.62, 1.03)
 Highest/most affluent (25,323)  
    White 1.00
    Black 1.41 (1.15, 1.73)
    Hispanic 1.12 (0.95, 1.31)
    API 0.92 (0.79, 1.07)
Stage 3  
SES  
 Lowest/least affluent (4,805)  
    White 1.00
    Black 1.05 (0.88, 1.25)
    Hispanic 0.74 (0.64, 0.85)
    API 0.64 (0.50, 0.83)
 Intermediate (3,087)  
    White 1.00
    Black 1.52 (1.20, 1.92)
    Hispanic 1.12 (0.91, 1.37)
    API 0.92 (0.69, 1.23)
 Highest/most affluent (6,532)  
    White 1.00
    Black 1.53 (1.22, 1.92)
    Hispanic 0.97 (0.79, 1.17)
    API 0.92 (0.76, 1.11)
  1. *Confidence intervals that include 1.00 indicate that the risk of mortality for a race/ethnicity was not statistically significantly better or worse than for whites within a stage/SES stratum.
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