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. Author manuscript; available in PMC: 2013 Jan 8.
Published in final edited form as: Clin Trials. 2012 Jul 3;9(4):426–435. doi: 10.1177/1740774512449531

Table 3.

County-level factors associated with NCI treatment trial enrollment rates.

County Characteristic OR 95% CI
CCOP practice in county 1.51 (1.10 – 2.08)
Medical School in county 1.14 (0.68 – 1.90)
Uninsured population -
  Quartile 1: Fewest Uninsured 1.53 (1.03 – 2.27)
  Quartile 2: Few Uninsured 1.16 (0.82 – 1.65)
  Quartile 3: More Uninsured 0.93 (0.68 – 1.28)
  Quartile 4: Most Uninsured (ref)
Region of the state (AHEC region)
  AHEC Area L 1.00 (0.57 – 1.76)
  AHEC Charlotte 0.92 (0.59 – 1.44)
  AHEC Eastern 0.81 (0.54 – 1.20)
  AHEC Greensboro 1.19 (0.77 – 1.85)
  AHEC Mountain 0.97 (0.66 – 1.42)
  AHEC Wake 0.80 (0.51 – 1.25)
  AHEC Southeast 0.77 (0.43 – 1.39)
  AHEC Southern 0.83 (0.51 – 1.35)
  AHEC Northwest (ref)
Time (Year) 1.08 (1.04 – 1.12)

CCOP: Community Clinical Oncology Program; AHEC: Area Health Education Center AHEC Regions are presented in Figure 3.