Table 5 Logistic regression main effects and interactions of neighborhood poverty and primary payer on breast cancer stage at diagnosis
| Â | Node negative disease | Tumor < 20 mm | ||||
|---|---|---|---|---|---|---|
Predictor Variables | Sample | OR | (95% CI) | Sample | OR | (95% CI) |
Single predictor models | ||||||
Neighborhood poverty | ||||||
  < 5% poor | 1,833  | 1.00 |  | 1,704  | 1.00 |  |
  5-29% poor | 1,760  | 0.94 | (0.81, 1.08) | 1,639  | 0.88* | (0.75, 1.02) |
  ≥ 30% poor | 1,723  | 0.75 | (0.65, 0.88) | 1,575  | 0.61 | (0.52, 0.71) |
Primary payer | ||||||
  Uninsured or Medicaid | 888  | 1.00 |  | 796  | 1.00 |  |
  Medicare or private | 4,428  | 1.42 | (1.21, 1.65) | 4,122  | 1.37 | (1.16, 1.61) |
Full models | ||||||
Neighborhood poverty | ||||||
  < 5% poor | 1,833  | 1.00 |  | 1,704  | 1.00 |  |
  5-29% poor | 1,760  | 1.27 | (0.88, 1.84) | 1,639  | 0.89 | (0.76, 1.04) |
  ≥ 30% poor | 1,723  | 1.06 | (0.74, 1.52) | 1,575  | 0.63 | (0.54, 0.73) |
Primary payer | ||||||
  Uninsured or Medicaid | 888  | 1.00 |  | 796  | 1.00 |  |
  Medicare or private | 4,428  | 1.73 | (1.23, 2.44) | 4,122  | 1.23 | (1.04, 1.45) |
  Poverty by payer | 5,316  | 0.72* | (0.49, 1.06) | 4,918  | 1.16a | (0.93, 1.45) |
Poverty by payer interaction on node negative disease at diagnosis | ||||||
| Â | > 5% poor | < 5% poor | ||||
Predictor Variables | Sample | OR | (95% CI) | Sample | OR | (95% CI) |
Primary payer | ||||||
  Uninsured or Medicaid | 730  | 1.00 |  | 158  | 1.00 |  |
  Medicare or private | 2,753  | 1.28 | (1.07, 1.53) | 1,675  | 1.76 | (1.25, 2.48) |