Table 5. Decision tree performance.
Actual outcome |
|||
---|---|---|---|
Good | Poor | ||
Predicted by | Good | 61 | 20 |
Decision tree | Poor | 3 | 25 |
Total | 64 | 45 |
Odds ratio 25, 95% confidence interval (7, 93). This table refers to the decision tree for tamoxifen-treated patients, shown in Figure 1. It incorporates the 17 patients excluded from the tree growing because of missing data. Their predictions are based on the data they do have. Misclassified cases are shown in bold.