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. 2015 Oct 16;15:715. doi: 10.1186/s12885-015-1710-2

Table 1.

Patient characteristics

Characteristic Non-CCT (%) CCT (%) p-value
Gender
 Male 83 (92.2) 87 (77.0) 0.003
 Female 7 (7.8) 26 (23.0)
Age 0.005
  < 60 years 48 (53.3) 82 (72.6)
  ≥ 60 years 42 (46.7) 31 (27.4)
Weight loss 0.941
  < 5 % 74 (82.2) 90 (81.8)
  ≥ 5 % 16 (17.8) 20 (18.2)
Smoking indexa 0.031
  ≤ 400 28 (31.1) 52 (46.0)
  > 400 62 (68.9) 61 (54.0)
Pretreatment hemoglobin 0.306
  < 120 g/L 2 (2.2) 7 (6.2)
  ≥ 120 g/L 88 (97.8) 106 (93.8)
Pretreatment KPS 0.697
  < 80 6 (6.7) 5 (4.4)
  ≥ 80 84 (93.3) 108 (95.6)
Stage 0.146
 IIIa 35 (38.9) 33 (29.2)
 IIIb 55 (61.1) 80 (70.8)
Histology subtype 0.545
 SCC 61 (67.8) 72 (63.7)
 Non-SCC 29 (32.2) 41 (36.3)
Pretreatment CEA 0.729
  < 5 ng/ml 50 (68.5) 62 (66.0)
  ≥ 5 ng/ml 23 (31.5) 32 (34.0)
PET scan staging
 Yes 25 (27.8) 28 (24.8) 0.629
 No 65 (72.2) 85 (75.2)
Radiotherapy technique 0.010
 3D-CRT 26 (28.9) 16 (14.2)
 IMRT 64 (71.1) 97 (85.8)
Radiotherapy dose 0.342
  ≥ 60 Gy 71 (78.9) 95 (84.1)
  < 60 Gy 19 (21.1) 18 (15.9)
Concurrent chemotherapy 0.010
 EP 36 (40.0) 63 (55.8)
 PC 49 (54.4) 38 (33.6)
 others 5 (5.6) 12 (10.6)
Response 0.559
 CR + PR 72 (80.0) 94 (83.2)
 SD 18 (20.0) 19 (16.8)

CCT consolidation chemotherapy, CEA carcinoembryonic antigen, KPS Karnofsky performance status, PET positron emission tomography, SCC squamous cell carcinoma

aSmoking index is the number of cigarettes smoked per day × the number of cigarette-years