title: Lung cancer in middle-aged patients.
abstract: Clinicopathological features of middle-aged lung cancer patients were investigated in 1016 consecutive patients. Among them, 22.8% of patients were in their forties and fifties. The preponderance of adenocarcinomas and the higher female/male ratio in middle-aged groups compared with the older group were findings similar to those observed in younger patients. Smoking habit increased according to the age groups. Middle-aged patients had a propensity for advanced stage, however, survival was not inferior to younger patients. Middle-aged patients consisted of two different groups of patients, whose characteristics were similar to those observed in either younger or elderly patients.
authors: Division of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba-city, Ibaraki, 305-8575, Japan.
authors: K
authors: K
authors: Kurishima
authors: H
authors: H
authors: Satoh
authors: H
authors: H
authors: Ishikawa
authors: Y T
authors: YT
authors: Yamashita
authors: H
authors: H
authors: Kamma
authors: M
authors: M
authors: Ohtsuka
authors: K
authors: K
authors: Sekizawa
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000328:Adult; D000368:Aged; D018287:Carcinoma, Large Cell / Q000473:pathology* / Q000601:surgery; D018288:Carcinoma, Small Cell / Q000473:pathology* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors