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J Korean Soc Ther Radiol. 1997 Sep;15(3):233-242. Korean. Original Article.
Kim MS , Yoo SY , Cho CK , Kim JY , Shim JW , Lee CT , Kang YK , Kim TY .
Department of Radiation Oncology, Korea Cancer Center Hospital, Seoul, Korea.
Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea.

PURPOSE: This study was done to evaluate the survival rate and prognostic factors of patients with inoperable non-small cell lung cancer (NSCLC) treated with radiation therapy. MATERIALS AND METHODS: A retrospective analysis was undertaken of 62 patients who had inoperable NSCLC treated with radiation therapy from January 1991 through December 1993. According to AJCC staging, stage III A was 14 patients and stage IIIB was 48 patients. Forty Gy to 70.2Gy to the primary tumor site was delivered with daily fractions of 1.8Gy or 2Gy, 5 days per week. Thirty-seven patients received neoadjuvant chemotherapy. RESULTS: Complete, partial and no response to radiation therapy were 3 patients, 34 patients and 25 patients, respectively. The median survival period of all patients was 11 month. One year survival rate, 2 year survival rate and 5 year survival rate for all patients were 45.0%, 14.3%, and 6.0% respectively. The median survival period was 6.5 months in stage IIIA and 13 months in stage IIIB. One year survival rates were 28.6% in stage IIIA and 50.3% in stage IIIB. In univariaite analysis, prognostic factors affecting survival were T-staging, AJCC staging, and response after radiation therapy (P<0.05). Pretreatment peformance status affected survival but was not statistically significant (0.05

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