Table 1 Characteristics and follow-up data of FAP-related mesenterial desmoid tumours, according to primary surgical treatment vs non-surgical treatment
| Â | Primary treatment | Â | |
|---|---|---|---|
| Â | Surgery ( N =36) | No surgery ( N =26) | P -value |
Sex, male | Â | Â | Â |
 N (%) | 16 (44) | 13 (50) | 0.665 |
Age at first DT (years) | Â | Â | Â |
 Median, min–max | 30, 15–54 | 35, 14–51 | 0.396 |
Size first DT (cm) | Â | Â | Â |
 Median, min–max | 9.5, 1–20 | 6.5, 2–24 | 0.568 |
DT progression, N (%) | 26 (72) | 13 (50) | 0.074 |
Time to first DT progression (months) | Â | Â | Â |
 Median, min–max | 13, 1–189 | 24, 2–229 | 0.913 |
Total follow-up from diagnosis of first DT to last observation (years) | Â | Â | Â |
 Median, min–max | 8, 0–29 | 7, 0–28 | 0.762 |
Age at last follow-up (years) | Â | Â | Â |
 Median, min–max | 41, 23–67 | 42.5, 18–79 | 0.606 |
Status at last follow-up, N (%) | Â | Â | Â |
 Alive | 21 (58) | 18 (69) | 0.783 |
 Lost to follow-up | 1 (3) | 1 (4) |  |
 Dead due to DT | 9 (25) | 5 (19) |  |
 Dead due to other cause | 5 (14) | 2 (8) |  |
DT status at last follow-up, N (%) | Â | Â | Â |
 Regression/stable | 25 (69) | 20 (77) | 0.515 |
 Progression/variable | 11 (31) | 6 (23) |  |
