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Table 4 Bivariate cox regression analysis

From: The Will Rogers phenomenon, breast cancer and race

African American vs. Caucasian

 

HR (95% CI)

P Value

Age

0.90 (0.60–1.34)

0.623

Grade

1.38 (0.95–2.02)

0.087

ER status

1.52 (0.90–2.58)

0.115

PR status

1.26 (0.75–2.12)

0.373

HER 2 status

1.74 (0.88–3.42)

0.109

BMI (kg/ m2)

 Normal (18.5–24.9)

1

 

 Overweight (25–29.9)

2.83 (1.01–7.91)

0.046

 Obese (30–39.9)

1.12 (0.39–3.20)

0.831

 Morbidity (>  40)

1.18 (0.43–3.20)

0.746

7th AJCC TNM stage

 Stage IA

1

 

 Stage IIA

0.23 (0.09–0.58)

0.002

 Stage IIB

0.76 (0.41–1.38)

0.375

 Stage IIIA

0.23 (0.07–0.80)

0.020

 Stage IIIB

1.30 (0.66–2.55)

0.444

 Stage IIIC

1.64 (0.87–3.08)

0.119

 Stage IV

3.38 (1.64–6.94)

0.001

8th AJCC TNM stage

 Stage IA

1

 

 Stage IB

0.34 (0.12–0.96)

0.042

 Stage IIA

0.32 (0.11–0.91)

0.033

 Stage IIB

0.83 (0.33–2.07)

0.680

 Stage IIIA

1.81 (0.83–3.94)

0.130

 Stage IIIB

0.45 (0.13–1.60)

0.222

 Stage IIIC

1.84 (0.95–3.59)

0.070

 Stage IV

1.96 (1.11–3.47)

0.020

  1. BMI body mass index, ER estrogen receptor, PR progesterone receptor, HER2 human epidermal growth factor receptor 2, AJCC American Joint Committee on Cancer, HR hazard ratio, CI confident interval