Defining time point | Studies (n) | Prognostic value | |||
---|---|---|---|---|---|
OS significant | OS non-significant | DFS significant | DFS non-significant | ||
Primary tumour diagnosis/surgery | 18 | 9 | 9 | 4 | 8 |
Three months post-primary tumour diagnosis/surgery | 4 | 2 | 2 | 0 | 1 |
Six months post-primary tumour diagnosis/surgery | 12 | 4 | 8 | 0 | 5 |
Twelve months post-primary tumour diagnosis/surgery | 7 | 0 | 7 | 0 | 1 |
Total | 41 | 15 | 26 | 4 | 15 |