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Table 2 Characteristics of patients with triple negative breast cancer by race, New Castle County, DE

From: Racial disparities in triple negative breast cancer: toward a causal architecture approach

  Black
(N = 179)
White
(N = 274)
Total
(N = 453)
p-values
Age at diagnosis, mean (SD)** 56.9 (13.1) 62.4 (15.2) 60.2 (14.6)  < 0.001
Insurance, n (%)**    < 0.001
 Private 114 (63.7) 137 (50.0) 251 (55.4) 0.020
 Medicare†† 43 (24.0) 119 (43.4) 162 (35.8)  < 0.001
 Medicaid/None 20 (11.2) 17 (6.2) 37 (8.2) 0.313
 Unknown 2 (1.1) 1 (0.4) 3 (0.7) 1.000
Stage of diagnosisa, n (%) 0.857
 Early stage 153 (85.5) 228 (83.2) 381 (84.1)
 Late stage 24 (13.4) 43 (15.7) 67 (14.8)
 Unknown stage 2 (1.1) 3 (1.1) 5 (1.1)
Census tract ICE-Race, n (%)**  < 0.001
 Q1†† (most disadvantaged) 78 (43.6) 26 (9.5) 104 (23.0)  < 0.001
 Q2 46 (25.7) 56 (20.4) 102 (22.5) 1.000
 Q3 37 (20.7) 66 (24.1) 103 (22.7) 1.000
 Q4†† 15 (8.4) 80 (29.2) 95 (21.0)  < 0.001
 Q5†† (most advantaged) 3 (1.7) 46 (16.8) 49 (10.8)  < 0.001
Census tract ICE-Income, n (%)**  < 0.001
 Q1†† (most disadvantaged) 56 (31.3) 24 (8.8) 80 (17.7)  < 0.001
 Q2 43 (24.0) 53 (19.3) 96 (21.2) 1.000
 Q3 23 (12.8) 41 (15.0) 64 (14.1) 1.000
 Q4 38 (21.2) 76 (27.7) 114 (25.2) 1.000
 Q5†† (most advantaged) 19 (10.6) 80 (29.2) 99 (21.9)  < 0.001
Census tract ICE-Race/Income, n (%)**  < 0.001
 Q1†† (most disadvantaged) 65 (36.3) 17 (6.2) 82 (18.1)  < 0.001
 Q2 54 (30.2) 58 (21.2) 112 (24.7) 0.300
 Q3 19 (10.6) 58 (21.2) 77 (17.0) 0.035
 Q4 33 (18.4) 61 (22.3) 94 (20.8) 1.000
 Q5†† (most advantaged) 8 (4.5) 80 (29.2) 88 (19.4)  < 0.001
  1. aEarly stage includes stages 1-3a and late stage includes stages 3b-4
  2. *Significant at p < 0.05
  3. **Significant at p < 0.001
  4. Post hoc test significant at p < 0.05
  5. ††Significant at p < 0.001