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Baseline trial characteristics.
| Characteristic (no. of trials) | Control (n) | Intervention (n) | Total (n) | |
|---|---|---|---|---|
| Median age (5)a | 68.5 [64–70]b | 65.25 [62–68]b | 67.5 | |
| Sex (6) | Male | 115 | 153 | 268 |
| Female | 71 | 87 | 158 | |
| Primary (6) | Lung | 110 | 119 | 229 |
| Prostate | 51 | 81 | 132 | |
| Breast | 5 | 13 | 18 | |
| Colorectal | 9 | 9 | 18 | |
| Other | 11 | 18 | 29 | |
| Synchronous (5) | Synchronous | 169 | 225 | 423 |
| Metachronous | 2 | 1 | 3 | |
| Number of metastases | 1-2 | 91 | 110 | 201 |
| (5) | 3-4 | 42 | 53 | 95 |
| 5 | 4 | 9 | 13 |
n number of patients.
aThe median of the medians.
bMedian age range.
