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Table 2 Patient and SBRT treatment characteristics (n = 25 patients)

From: Predictive factors for response to salvage stereotactic body radiotherapy in oligorecurrent prostate cancer limited to lymph nodes: a single institution experience

Characteristics Value
Age at SBRT (years)
 median (IQR) 68 (62–72)
 mean (range) 68 (52–81)
PSA at SBRT (ug/l)
 median (IQR) 3.53 (1.48–6.86)
 mean (range) 3.49 (1.02–14.54)
PSADT
  < 3 months 5 20%
 3–6 months 12 48%
  > 6 months 8 32%
Number of lymph nodes at SBRT
 1 16 64%
 2 7 28%
 3 2 8%
LN localisation (n = 36)
 N1 33 92%
 M1a 3 8%
Largest LN diameter (mm)a
 median (IQR) 10.5 (8.5–13.5)
 mean (range) 12.8 (5–33)
SBRT data (Gy)
 total median dose (range) 36 (30–45)
 median dose per fraction (range) 12 (10–15)
SBRT regimen
 10 Gy per 3 fractions 2 8%
 11 Gy per 3 fractions 1 4%
 12 Gy per 3 fractions 11 44%
 13 Gy per 3 fractions 7 28%
 15 Gy per 3 fractions 4 16%
  1. a one data missing (n = 35)