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. 2014 Jun 9;13:18. doi: 10.1186/1476-072X-13-18

Table 2.

Area Provider Characteristics and Screening Rates across differing levels of AIAN populations, by county

 
 AIAN presence
 Mean (total)
 
 Mean split
 95th percentile split
  
  Above 1.87% mean At/Below 1.87% mean At/Above 95th percentile Below 95th percentile  
Percent screened
  
  
  
  
  
Mammography (females)
 37.32%*
 38.67%*
 34.10%*
 38.74%*
 38.52%
Colonoscopy
 8.96%*
 9.42%*
 8.63%*
 9.41%*
 9.37%
Distance to providers (miles)
  
  
  
  
  
Mammography
 31.89*
 14.93*
 45.02*
 15.44*
 16.88
Colonoscopy
 26.15*
 10.90*
 38.33*
 11.34*
 12.66
Average number of providers
  
  
  
  
  
Mammography
 8.32*
 15.31*
 4.49*
 15.01*
 14.51
Colonoscopy
 5.92*
 12.13*
 3.88*
 11.79*
 11.42
Health Professional Shortage Areas (HPSA) primary care
  
  
  
  
  
Whole or partial county
 332
 2071
 142
 2261
  
Non-HPSA 38 784 15 807  

*significant difference (p ≤ .05).