Research Article

Individual and Neighborhood Socioeconomic Status and Healthcare Resources in Relation to Black-White Breast Cancer Survival Disparities

Table 2

Distribution of individual and county-level characteristics of breast cancer cases by race.

CharacteristicBlack ( ) %White ( ) % value

Age at diagnosis mean (SD)61.14 (14.34)63.51 (13.49)0.01
Income/$1000 mean (SD)25.03 (24.38)44.72 (40.40)<0.001
Marital Status
 Single19.117.36
 Married28.6053.55
 Widowed30.1928.04<0.001
 Divorced/separated19.729.84
 Missing2.391.21
Employment
 In labor force49.9147.66
 Not in labor force46.1048.180.79
 Missing3.994.17
Education
 <High school23.579.51
 High school graduate29.9938.76<0.001
 College46.4451.73
Rural/urban
 Rural6.229.150.12
 Urban93.7890.85
Stage of diagnosis
 In situ/localized53.0154.620.96
 Regional27.6927.11
 Distant/unstaged14.1613.25
 Missing5.145.02
Surgical treatment
 Received91.2395.07
 None, medical reasons4.302.060.03
 None-non medical reasons4.472.87
Radiation treatment
 Received31.1738.61
 None, medical reasons62.4255.680.07
 None-nonmedical reasons6.415.70
Income disparity
 Poorest 36.9416.77
 Middle30.7934.87<0.001
 Highest 32.2848.36
Education disparity
 Poorest 43.2026.90
 Middle24.6931.43<0.001
 Highest 32.1141.67
Facilities
 Poorest 32.6938.10
 Middle50.5738.460.0009
 Highest 16.7423.44
Personnel
 Poorest 13.0912.10
 Middle45.6744.280.76
 Highest 41.2443.62
Percent non-English speaking
 <3%40.3222.42<0.001
 ≥3%59.6877.58
Percent black
 <6%12.4832.49<0.001
 ≥6%87.5267.51

aPersonnel and facilities, two measures of health care access were defined using principal components analysis on the count per 10,000 population of county level variables and then categorized into tertiles. Facilities: hospitals, mammography facilities; Personnel: MDs, Dos, and nurse practitioners.
bMeasures of SES at the county level are the ICE-Income and ICE-Education variables which were calculated and categorized into tertiles, defined as:
ICE-Education = (% 25+ years with college 25+ years with <9 yrs education).
ICE-Income = (% with HH income >$100,0 HH in poverty).