Table 4.
Toxicity cohort (matched and unmatched cohorts)
| Matched cohort | ||||
|---|---|---|---|---|
| TOT (n = 185) | SSRT (n = 90) | SRT (n = 95) | p-value | |
| GI acute toxicity | ||||
| Yes | 45 (24.32%) | 3 (3.33%) | 42 (44.21%) | < 0.001 |
| No | 140 (75.68%) | 87 (96.67%) | 53 (55.79%) | |
| GU acute toxicity | ||||
| Yes | 54 (29.19%) | 17 (18.89%) | 37 (38.95%) | 0.002 |
| No | 131 (70.81%) | 73 (81.11%) | 58 (61.05%) | |
| GI late toxicity | ||||
| Yes | 11 (5.95%) | 0 (0%) | 11 (11.58%) | 0.003 |
| No | 174 (94.05%) | 90 (100%) | 84 (88.42%) | |
| GU late toxicity | ||||
| Yes | 22 (11.89%) | 3 (3.33%) | 19 (20%) | < 0.001 |
| No | 163 (88.11%) | 87 (96.67%) | 76 (80%) | |
| Unmatched cohort | ||||
|---|---|---|---|---|
| TOT (n = 90) | SSRT (n = 45) | SRT (n = 45) | p-value | |
| GI acute toxicity | ||||
| Yes | 22 (24.44%) | 2 (4.44%) | 20 (44.44%) | < 0.001 |
| No | 68 (75.56%) | 43 (95.56%) | 25 (55.56%) | |
| GU acute toxicity | ||||
| Yes | 34 (37.78%) | 13 (28.89%) | 21 (46.67%) | 0.08 |
| No | 56 (62.22%) | 32 (71.11%) | 24 (53.33%) | |
| GI late toxicity | ||||
| Yes | 7 (7.78%) | 0 (0%) | 6 (13.33%) | 0.04 |
| No | 83 (92.22%) | 45 (100%) | 39 (86.67%) | |
| GU late toxicity | ||||
| Yes | 13 (14.44%) | 3 (6.67%) | 10 (22.22%) | 0.03 |
| No | 77 (85.56%) | 42 (93.33%) | 35 (77.78%) | |
SSRT Stereotactic salvage radiation therapy, SRT Salvage radiation therapy, GI Gastro intestinal, GU Genitourinary