Neoplasias Encefálicas/mortalidad; Neoplasias Encefálicas/radioterapia; Calidad de Vida; Radiocirugia; Adulto; Anciano; Anciano de 80 o más Años; Neoplasias Encefálicas/secundario; Femenino; Humanos; Estudios Longitudinales; Neoplasias Pulmonares/patología; Masculino; Persona de Mediana Edad; Pronóstico; Estudios Prospectivos; Tasa de Supervivencia

BM = brain metastasis; BRCS = brain cancer subscale; DS-GPA = diagnosis-specific Graded Prognostic Assessment; EGFR = epidermal growth factor receptor; EORTC = European Organisation for Research and Treatment of Cancer; EWB = emotional well-being; FACT-BR = Functional Assessment of Cancer Therapy­Brain; FACT-G = FACT general version; FWB = functional well-being; Functional Assessment of Cancer Therapy­Brain subscore; GKS = Gamma Knife surgery; Gamma Knife surgery; KPS = Karnofsky Performance Scale; LC = lung cancer; MLM = mixed linear model; NSCLC = non­small cell lung cancer; PWB = physical well-being; QOL = quality of life; RPA = recursive partitioning analysis; RTOG = Radiation Therapy Oncology Group; SCLC = small cell lung cancer; SIR = prognostic score index for radiosurgery; SRS = stereotactic radiosurgery; SWB = social well-being; TOI = trial outcome index; WBRT = whole-brain radiation therapy; brain metastases; lung cancer; oncology; quality of life; stereotactic radiosurgery; survival