Table 1.

Patient clinical and treatment characteristics

Characteristicsn (%)
Age, y
    Median60.0
    Range26.0-83.0
Sex
    Male115 (84.6)
    Female21 (15.4)
Smoking status
    Nonsmoker35 (25.7)
    Smoker101 (74.3)
KPS
    ≥80112 (82.4)
    <8024 (17.6)
Weight loss
    <5%111 (81.6)
    ≥5%25 (18.4)
Histology
    Squamous carcinoma83 (61.0)
    Adenocarcinoma42 (30.9)
    Others*11 (8.1)
Tumor stage at diagnosis
    IIIA34 (25.0)
    IIIB102 (75.0)
Radiation technique
    2D-RT21 (15.4)
    3D-RT115 (84.6)
Radiation dose
    Median60
    Range40-70
Treatment
    Sequential chemoradiation40 (29.4)
    Concurrent chemoradiation62 (45.6)
    Radiation alone34 (25.0)
GTV (cm3)
    Median112.0
    Range4.0-481.3

Abbreviations: 2D-RT, two-dimensional radiotherapy; GTV, gross tumor volume.

  • *Others include large cell carcinoma and adenosquamous carcinoma.

  • Chemotherapy consisting of two or more cycles of platinum-based regimen.

  • Only patients receiving three-dimensional conformal radiotherapy had gross tumor volume measured.