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. Author manuscript; available in PMC: 2014 Sep 18.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2014 Apr 24;23(7):1245–1253. doi: 10.1158/1055-9965.EPI-13-1380

Table 1.

Baseline characteristics of participants by intervention and control groups, San Francisco, 2011 to 2012 (N = 1,235)

Control group,
n = 655
n (%)
Intervention group,
n = 580
n (%)
P valuea
Demographic characteristics
  Age at diagnosis (categories)
    <50 y 163 (24.9) 170 (29.3) 0.331
    50–65 y 379 (57.9) 313 (54.0)
    >65 y 113 (17.3) 97 (16.7)
  Race/ethnicity
    Asian or Pacific Islander 123 (18.8) 105 (18.1) 0.877
    Black or African American 150 (22.9) 125 (21.6)
    Latina 144 (22.0) 141 (24.3)
    Non-Latina White 229 (35.0) 202 (34.8)
    Native American or other 9 (1.4) 7 (1.2)
  Marital status
    Married/living with a partner 288 (44.3) 261 (45.2) 0.802
    Separated/divorced/widowed/never married 362 (55.7) 316 (54.8)
  Education
    High school diploma or less 216 (33.3) 175 (30.4) 0.200
    Some college 155 (23.9) 167 (29.1)
    College degree or higher 278 (42.8) 233 (40.5)
  Language of interview
    English 572 (87.3) 507 (87.4) 0.944
    Spanish or Chinese 83 (12.7) 73 (12.6)
Health characteristics
  Clinic site
    Mount Zion Cancer Center 435 (66.4) 411 (70.9) 0.135
    SF General Hospital 220 (33.6) 169 (29.1)
  Health insurance
    Any private insurance 291 (44.4) 297 (51.2) 0.022
    Only public insurance 350 (53.4) 265 (45.7)
    No insurance 14 (2.1) 18 (3.1)
  Primary care visits during last year
    0 to 1 176 (27.2) 164 (28.6) 0.097
    2 to 3 211 (32.5) 214 (37.4)
    4+ 261 (40.3) 195 (34.0)
  Comorbid conditions
    0 45 (6.9) 39 (6.7) 0.979
    1 to 2 256 (39.1) 226 (39.0)
    3+ 354 (54.1) 315 (54.3)
  Perception of health status
    Excellent/very good 211 (32.4) 203 (35.2) 0.399
    Less than excellent/very good 441 (67.6) 373 (64.8)
Assessment of risk for breast cancer
  Risk category for breast cancer
    Average risk 509 (77.7) 419 (72.3) 0.097
    High-risk, Gail/BCSC 97 (14.8) 101 (17.4)
    High-risk, RST ≥2 49 (7.5) 60 (10.3)
a

P values from GEE analyses accounting for clustering of observations by physician.