Analysis of symptoms as a predictor of overall and LC specific survival for stage I & II and stage IA only LC after adjustment for age, sex, race, smoking status, stage status, and therapy.

*The thoracic and throat symptoms category included cough, dyspnea, shoulder, scapula and chest pain, wheezing, dysphagia, sore throat, and voice hoarseness.
**The general symptoms category included fatigue, night sweat, weight loss, fever, dizziness, vomiting, and edema.
Variables were coded as 0 for no symptom, 1 for symptom; Age, sex, race, smoking status, stage status, and therapy were adjusted for all stage I & II. Age, sex, race, smoking status, and therapy were adjusted for stage IA by using multivariate Cox Regression.