Assessing equity of care across metastatic breast cancer treatment junctures: a multi-site retrospective cohort study

Table 1 Descriptive findings of the vulnerability cluster variables (predictor variables) of patients with mBC (N = 460)

Variables	N (%)	Mean (SD)
Age		72.66 (9.65)
Gender
Female	454 (98.70)
Male	6 (1.30)
Race/Ethnicity
White	339 (73.70)
Hispanic	49 (10.65)
Black	35 (7.61)
Asian	6 (1.30)
Other	4 (0.87)
Declined/Unknown	27 (5.87)
Marital Status
Married	184 (40.00)
Widowed	123 (26.74)
Single	65 (14.13)
Unknown	36 (7.83)
Number of Metastatic sites		2.07 (1.28)
Social and Structural Determinants of Health(County level)*
Access to primary care^a		2092.67 (1098.86)
Access to other primary care providers^b		2050.30 (1267.42)
High school completion^c		0.90 (0.05)
Mammography screening (Medicare patients)^d		0.58 (0.06)
Median Income^e		57,671.79 (14,168.33)
Poor or fair health^f		0.18 (0.05)
Residential segregation index^g
Black/White		44.86 (9.26)
Nonwhite/White		29.29 (7.28)
Unemployment^h		0.04 (0.01)
Uninsuredⁱ		0.19 (0.04)

* As reported by County Health Rankings (except median income reported by the US Census Bureau)
a Ratio of population to primary care physicians
b Ratio of population to primary care providers other than physicians
c Percentage of adults ages 25 and over with a high school diploma
d Percentage of female Medicare enrollees ages 65–74 that received an annual mammography screening
e Median reported income for 2018 as reported bythe US Census Bureau at the zip code level of the patient
f Percentage of adults reporting fair or poor health (age-adjusted)
g Residential segregation index for black/white and non-white/white
h Percentage of population aged ≥ 16 unemployed but seeking work
i Percentage of adults under the age of 65 who do not have health insurance

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