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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2015 Jul 21;24(10):1599–1606. doi: 10.1158/1055-9965.EPI-15-0305

Table 2.

Patient, facility and tumor aggressiveness factors and symptomatic awareness despite a recent screen in the Breast Cancer Care in Chicago study (2005–2008).

Symptomatic breast cancer awareness despite a recent screen
Within the past year
Within the past 2 years
N % P-Value N % P-Value
 Ethnicitya 0.0004 0.0004
  nH White 288 18 314 25
  nH Black 267 27 304 36
  Hispanic 119 36 132 42
 Age 0.0036 0.0002
  25–49 147 30 169 39
  50–59 215 30 246 39
  60–79 312 19 335 24
 Breast Density 0.0005 0.0016
  Fatty 29 14 33 24
  Scattered fibroglandular 190 18 208 25
  Heterogeneously dense 154 32 171 39
  Extremely dense 56 34 63 41
Socioeconomic factors
 Health insurancea 0.7550 0.6840
  None 63 29 71 37
  Public 104 25 117 33
  Private 507 24 562 32
 Education 0.4806 0.4000
  <12 121 26 135 34
  12 117 26 133 35
  >12 433 24 479 31
 Income 0.095 0.0976
  <20K 164 28 181 35
  20–50K 302 26 343 35
  >50K 186 20 203 27
 Disadvantage 0.2316 0.1172
  >1 SD below mean 106 21 113 26
  Within 1 SD of the mean 439 25 493 33
  >1 SD above mean 127 28 142 35
 Affluence 0.1124 0.0464
  >1 SD below mean 45 29 49 35
  Within 1 SD of the mean 480 26 542 34
  >1 SD above mean 147 20 157 25
Facility characteristics
 Designation 0.1076 0.0500
  Not Disproportionate Share 496 24 547 31
  Disproportionate Share 164 30 187 39
 Designation 0.0104 0.0536
  Not a Breast Center of
 Excellence 433 28 480 35
  Breast Center of Excellence 228 19 257 28
 University-Based 0.0188 0.0069
  No 485 27 545 35
  Yes 189 19 205 25
 Reliance on dedicated radiologists 0.0026 0.0017
  None 122 35 137 42
  Partial 248 24 475 32
  Sole reliance 128 19 138 25
Tumor aggressiveness factors
 ER/PR status 0.00006 0.0011
  Either or both positive 413 22 461 30
  Double negative 88 42 96 47
 Histologic Grade (1,2,3) 0.0018 0.0020
  Low 119 17 129 23
  Moderate 212 21 237 30
  High 187 32 209 39
a

P-values for these 2 variables and for all binary variables are from a general Chi-Squared test, whereas p-values for the remaining ordered variables are from a test for trend via logistic regression. P-values >0.15 are suppressed.