Table 2.
Grade ≥2 late toxicities
| Grade 2/3 toxicity | P | |||
|---|---|---|---|---|
| 2.0 Gy/day | 2.1 Gy/day | 2.2 Gy/day | ||
| Genitourinary | ||||
| Urinary frequency | 1/0 | 1/0 | 5/0 | |
| Hematuria | 2/0 | 2/2 | 0/1 | |
| Urinary retention | 0/1 | 2/0 | 1/0 | |
| Urinary incontinence | 1/0 | 0/0 | 4/0 | |
| Totala | 7.2%b | 7.4%c | 7.1%d | 0.98e |
| Gastrointestinal | ||||
| Rectal hemorrhage | 9/0 | 11/3 | 12/0 | |
| Totala | 12.4%b | 14.1%c | 7.9%d | 0.29e |
aCumulative incidence of Grade ≥2 late genitourinary/gastrointestinal toxicity. bIncidence at 10 years. cIncidence at 8 years. dIncidence at 6 years. eExamined by logrank test.