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Table 3 Log-rank test for factors associated with the response to steroid therapy.

From: Treatment and prognosis of patients with late rectal bleeding after intensity-modulated radiation therapy for prostate cancer

Factors Groups (number of patients) Response rate at 1 year (%) P value
Age ≥ 71 (17)/≤ 70 (12) 66/51 0.85
IMRT method Linac (16)/Tomotherapy (13) 46/72 0.33
Use of ADT Yes (21)/No (8) 61/63 0.93
Use of antithrombotics Yes (9)/No (15) 83/49 0.37
Presence of DM Yes (7)/No (22) 100/44 0.02
Rectal %V40Gy ≥ 35.0% (14)/< 35.0 % (15) 50/83 0.27
Rectal %V70Gy ≥ 8.1 % (15)/< 8.1 % (14) 47/85 0.18
  1. ADT, androgen deprivation therapy; DM, diabetes mellitus; Rectal %V40/%70 Gy, % of rectum volume receiving ≥ 40 or 70 Gy.