Table 1 Patient characteristics at the start of first-line chemoradiotherapy
Characteristics | Platinum group | non-Platinum group | P-value | |||
|---|---|---|---|---|---|---|
n | % | n | % | |||
Overall | 119 | Â | 201 | Â | Â | |
Age (years) | ||||||
 Median (range) | 63 | (33—81) | 65 | (44—80) |  | |
  ≥ 75 | 8 | 6.7 | 15 | 7.5 | 1.0 | |
  < 75 | 111 | 93.3 | 186 | 92.5 | ||
Sex | ||||||
 Female | 18 | 15.1 | 25 | 12.4 | 0.50 | |
 Male | 101 | 84.9 | 176 | 87.6 | ||
Smoking status | ||||||
 Current | 68 | 57.1 | 115 | 57.2 | 1.0 | |
 Former | 44 | 37.0 | 75 | 37.3 | ||
 Never | 7 | 5.9 | 11 | 5.5 | ||
Respiratory comorbidity | ||||||
 Yes | 43 | 36.1 | 78 | 38.8 | 0.72 | |
 No | 76 | 63.9 | 123 | 61.2 | ||
ECOG PS | ||||||
 0 | 66 | 55.5 | 100 | 49.8 | 0.41 | |
 1 | 49 | 41.2 | 97 | 48.3 | ||
 2 | 4 | 3.4 | 4 | 2.0 | ||
Histology | ||||||
 Adenocarcinoma | 51 | 42.9 | 85 | 42.3 | 0.99 | |
 Squamous cell carcinoma | 53 | 44.5 | 89 | 44.3 | ||
 Other | 15 | 12.6 | 27 | 13.4 | ||
Clinical stage (UICC-TNM classification, 7th edition) | ||||||
 IIIA | 60 | 50.4 | 95 | 47.3 | 0.64 | |
 IIIB | 59 | 49.6 | 106 | 52.7 | ||