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Table 1 Clinical characteristics of the 358 patients with locally advanced nasopharyngeal carcinoma (NPC)

From: Prognostic value and predictive threshold of tumor volume for patients with locally advanced nasopharyngeal carcinoma receiving intensity-modulated radiotherapy

Characteristic No. of patients Percentage (%)
Age (years)
 <50 232 64.8
 ≥50 126 35.2
Sex
 Male 255 71.2
 Female 103 28.8
T categorya
 T3 64 17.9
 T4 294 82.1
N categorya
 N0 66 18.4
 N1 113 31.6
 N2 118 33.0
 N3 61 17.0
Tumor volume (mL)
 ≤46.4 219 61.2
 >46.4 139 38.8
WHO histological type
 I 25 7.0
 II–III 333 93.0
Chemotherapy
 None 21 5.9
 Concurrent or NACT or adjuvant 47 13.1
 Concurrent + NACT 39 10.9
 Concurrent + adjuvant 10 2.8
 NACT + adjuvant 92 25.7
 NACT + concurrent + adjuvant 149 41.6
Prescribed total dose (Gy)
 <73.92  111 31.0
 ≥73.92  247 69.0
  1. WHO World Health Organization, NACT neoadjuvant chemotherapy
  2. aThe 7th American Joint Committee on Cancer (AJCC) staging system was used for T and N classification