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Table 2 Characteristics of patients with locally recurrent NPC treated with IMRT

From: Long-term survival and late complications of intensity-modulated radiotherapy for recurrent nasopharyngeal carcinoma

Characteristic No. (%)
Gender
 Male 133(72.3)
 Female 51(27.7)
Age at the time of re-irradiation (years)
 Median (range) 49(23–86)
Primary RT technique
 2D-CRT 103 (56)
 IMRT 43 (23.4)
 Unknown 38 (20.7)
Primary RT dose (Gy)
 Median (range) 70 (60–78.35)
Chemotherapy in the first treatment
 Yes 103 (56)
 No 44 (23.9)
 Unknown 37 (20.1)
rT classification
 rT1–2 64 (34.8)
 rT3–4 120 (65.2)
Presence of synchronous nodal recurrence
 No 153 (83.2)
 Yes 31 (16.8)
Time interval between initial RT and recurrence (months)
 Median (range) 35 (6–388)
TTR (years)
 ≤ 2 59 (32.1)
 > 2 125 (67.9)
  1. Abbreviations: NPC, nasopharyngeal carcinoma; IMRT, intensity-modulated radiotherapy; RT, radiotherapy; 2D-CRT, two-dimensional conventional radiotherapy; TTR, time to recurrence