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Table 4 Odds ratios α and 95% confidence intervals for reconstruction within 6 months of a mastectomy among female Medicare beneficiaries with early stage breast cancer from 2005-2009 overall and stratified by race/ethnicity

From: The influence of race/ethnicity and place of service on breast reconstruction for Medicare beneficiaries with mastectomy

  Reconstruction within 6 Months
  All Women Caucasian Women of colorβ
Women's characteristics   OR (95% CI)α  
Race/ethnicity    
  Caucasian (N = 15,404) 1.00 (referent)   
  Women of color (N = 2,554) 0.45 (0.37-0.55)   
Median income p for trend <0.0001 p for trend <0.0001 p for trend =0.08
  Quartile 4 (> = $59,450) 1.00 (referent) 1.00 (referent) 1.00 (referent)
  Quartile 3 ($44,000-$59,449) 0.73 (0.63-0.84) 0.72 (0.62-0.84) 0.78 (0.47-1.29)
  Quartile 2 ($33,750-43,999) 0.54 (0.45-0.64) 0.53 (0.44-0.64) 0.52 (0.30-0.91)
  Quartile 1 (<$33,750) 0.45 (0.37-0.55) 0.45 (0.36-0.56) 0.39 (0.22-0.69)
Facility characteristics    
Urban/Rural    
  Urban 1.00 (referent) 1.00 (referent) 1.00 (referent)
  Rural 0.33 (0.23-0.48) 0.34 (0.23-0.49) 0.24 (0.05-1.09)
Teaching hospital    
  No 0.75 (0.66-0.85) 0.74 (0.65-0.85) 0.76 (0.49-1.17)
  Yes 1.00 (referent) 1.00 (referent) 1.00 (referent)
NCI cancer center    
  No 0.86 (0.68-1.09) 0.83 (0.65-1.06) 1.42 (0.64-3.16)
  Yes 1.00 (referent) 1.00 (referent) 1.00 (referent)
Cooperative oncology group    
  No 0.68 (0.59-0.77) 0.69 (0.60-0.79) 0.57 (0.36-0.90)
  Yes 1.00 (referent) 1.00 (referent) 1.00 (referent)
Disproportionate share hospital    
  No 1.00 (referent) 1.00 (referent) 1.00 (referent)
  Yes 0.89 (0.78-1.02) 0.90 (0.78-1.04) 0.75 (0.45-1.27)
Breast cancer surgery volume p for trend <0.0001 p for trend <0.0001 p for trend =0.41
  Quartile 4 (36+) 1.00 (referent) 1.00 (referent) 1.00 (referent)
  Quartile 3 (19-35) 0.76 (0.66-0.87) 0.75 (0.64-0.87) 0.89 (0.55-1.43)
  Quartile 2 (9-18) 0.69 (0.59-0.81) 0.70 (0.59-0.84) 0.63 (0.36-1.11)
  Quartile 1 (1-8) 0.73 (0.60-0.89) 0.72 (0.58-0.89) 0.89 (0.50-1.59)
  1. αThe logistic regression model was additionally adjusted for age, SEER registry, urban/rural status of the women, cancer stage, and comorbidity score. OR = Odds Ratio CI = Confidence Interval.
  2. βWomen of color includes African American, Hispanic, Asian, Native American and Other.