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

Breast Cancer Research

Table 5 Census tract characteristics by TNBC prevalence and race-ICE quintiles

	Lower TNBC, lower race-ICE disadvantage (population N = 39,924, tract N = 12)^a	Lower TNBC, higher race-ICE disadvantage (population N = 4989, tract N = 2)^b	Higher TNBC, lower race-ICE disadvantage (tract N = 0)^c	Higher TNBC, higher race-ICE disadvantage (population N = 39,647, tract N = 10)^d
% TNBC^e	4.1%	0.0%	–	28.8%
ICE-Race, mean (SD)^f	0.82 (0.07)	− 0.37 (0.16)	–	− 0.48 (0.33)
% Black^f	4.5%	56.0%	–	63.9%
% Poverty^f	5.0%	27.0%	–	23.3%
% Without high school education^f,g	5.6%	15.4%	–	13.0%
Alcohol retailers	8	4	–	19
Fast-food retailers	12	5	–	14
Alcohol retailers per 1000 people	0.20	0.80	–	0.48
Fast-food retailers per 1000 people	0.30	1.00	–	0.35
% With AUD^h	14.9%	23.9%	–	25.4%
% With obesity^h	33.9%	38.7%	–	43.4%

^aCorresponds to light gray tracts in Fig. 1A
^bCorresponds to teal tracts in Fig. 1A
^cCorresponds to magenta tracts in Fig. 1A
^dCorresponds to blue tracts in Fig. 1A
^eTNBC prevalence determined from patients diagnosed with invasive breast cancer at HFGCCRI between 2012 and 2020 (N = 3449)
^fCensus tract population data from American Community Survey 5-year estimates, 2014–2018
^gEducational attainment defined for the population aged 25 and older
^hAUD and obesity prevalence determined from adults hospitalized at Christiana Care between July 1, 2018 and June 30, 2019 (N = 20,310)

ISSN: 1465-542X