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Results of EM POE-based survival analysis
| Analysis | Variable | Coef | p-value |
| Univariate | Risk Index | 0.015 | 0.005 |
| Multivariate | Risk Index | 0.010 | 0.049 |
| Estrogen Receptor Pos | -0.697 | 0.058 | |
| Age | -0.059 | 0.021 | |
Cox proportional hazards model fitted to time to distant metastasis in lymph node from study by [14]. Risk indices were derived based on POE data transformed by the EM algorithm.
