[Evaluation of radiation therapy of brain metastases from lung carcinoma using multivariate analysis].

A randomized clinical trial of whole brain irradiation for brain metastases arising from lung cancer is in progress to improve survival and the quality of life. Between September 1980 and July 1982, 40 patients were treated using 4 MV X-ray. Concerning the radiation dose, laboratory tests and the physical condition of the patients, we analyzed 22 data items by means of quantification II, one of the methods of multivariate analysis. We found that neurologic function, performance status and LDH are important factors in assessing the 120-day survival.