Table 2 Initial logistic regression model fit. Significant variables are denoted by ** (significant at 5%) or *** (significant at 1%).
Term | Coefficient | Standard Error | t-value | Significance (1% or 5%) |
|---|---|---|---|---|
Intercept | -0.471 | 0.162 | -2.905 | *** |
Tumor Size T1 (baseline) | ||||
Tumor Size T2 | -0.500 | 0.045 | -11.017 | *** |
Tumor Size T3 | -0.378 | 0.083 | -4.576 | *** |
Subject Age under 40 (baseline) | ||||
Subject Age 40–60 | -0.044 | 0.080 | -0.547 | |
Subject Age ≥ 60 | -0.144 | 0.035 | -4.058 | *** |
Area of Residence – Metro (baseline) | ||||
Area of Residence – Rural | -0.210 | 0.058 | -3.610 | *** |
Area of Residence – Remote | -0.101 | 0.062 | -1.638 | |
Tumor Histology – Ductal (baseline) | ||||
Tumor Histology – Lobular | -0.151 | 0.064 | -2.343 | ** |
Tumor Histology – Other | 0.175 | 0.056 | 3.112 | *** |
Lymph Node Negative (N-) (baseline) | ||||
Lymph Node Positive, 1–3 nodes | -0.216 | 0.049 | -4.416 | *** |
Lymph Node Negative, 4 or more nodes | -0.189 | 0.041 | -4.625 | *** |
Country of birth – Australia/NZ (baseline) | ||||
Country of birth – Western Europe | 0.039 | 0.050 | 0.797 | |
Country of birth – Other | -0.046 | 0.046 | -1.011 | |
Payment class – Public/Medicare (baseline) | ||||
Payment class – Private, not insured | 0.045 | 0.122 | 0.366 | |
Payment class – Private, insured | 0.024 | 0.046 | 0.518 | |
Payment class – Ineligible | -0.153 | 0.088 | -1.735 | |
Marital Status – Married/De-Factor (baseline) | ||||
Marital Status – Other | 0.028 | 0.048 | 0.578 |