Table I.
Clinical factors of patients in the training and test datasets.
| Variable | Training set (n=19) |
Test set (n=18) |
P-value |
|---|---|---|---|
| Sex | |||
| Female | 8 | 9 | 0.746a |
| Male | 11 | 9 | |
| Site | |||
| Left | 11 | 13 | 0.495a |
| Right | 8 | 5 | |
| Chemosensitivity | |||
| Favorable | 7 | 7 | 1a |
| Unfavorable | 12 | 11 | |
| Recurrence | |||
| Yes | 12 | 6 | 0.103a |
| No | 7 | 12 | |
| Age (mean ± SD) | 13.32±6.87 | 13.67±14.91 | 0.445b |
| Recurrence time (mean ± SD) | 46.89±45.11 | 59.28±55.55 | 0.328b |
a
P-values were calculated by Fisher’s exact test;
b
P-values were calculated by Wilcoxon rank sum test. The statistical analyses were performed using R software. SD, standard deviation.