SURVIVAL AMONG PATIENTS WITH LUNG-CANCER - AN EPIDEMIOLOGIC-STUDY

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Abstract
Patients (446) with lung cancer diagnosed in a defined population of approximately 300,000 persons during 4 yr were studied prospectively and followed for 5 yr or until death. Histologic or cytologic confirmation of the diagnosis was achieved in 431 cases (97%). Only 140 patients (31%) were alive 1 yr after diagnosis and only 19 patients (4%) were alive after 5 yr, with no significant differences between the men and women. The 5 yr survival rates among patients with epidermoid, small-cell anaplastic and adenocarcinoma were 6, 2 and 4%, respectively. The patients could be divided into prognostically meaningful groups according to the symptomatic staging proposed by Feinstein. Of the 427 patients who had died within 5 yr, 410 (96%) had died of lung cancer and only 17 (4%) had died of other diseases.