Table 1.

Clinical characteristics and environmental factors in esophageal cancer patients

Patients (n = 154)
Lymph node (n = 128)*
    Present86 (67.2%)
    Absent42 (32.8%)
Location (n = 142)*
    Upper22 (14.9)
    Middle78 (52.7)
    Lower48 (32.4)
Histopathology (n = 151)*
    Squamous cell carcinoma142 (94.1%)
    Adenocarcinoma9 (5.9%)
Tobacco use (n = 146)*
    Smokers32 (21.9)
    Smokers + smokeless tobacco users49 (33.6)
    Smokeless tobacco users37 (35.3)
    Nonusers28 (19.2)
Alcohol consumption (n = 126)*
    Drinker46 (36.5)
    Nondrinker80 (63.5)
Occupational exposure (n = 125)*
    Present41 (32.8)
    Absent84 (67.2)
  • * Missing data.