Air pollution and cancer.
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Biomedical subjects
Publications and source records attributed to L BRESLOW.
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A study was made of certain information from studies of the State Department of Public Health which bear upon the hypotheses that cigarette-smoking and physical exercise are factors in coronary artery disease. The data supported an association of the disease with cigarette smoking, but not with exercise. An incidental finding was a strong relationship between coronary heart disease and the beginning of the wearing of reading glasses or bifocals at an early age. In the present state of investigations aimed at determining the etiology of coronary artery disease it appears desirable to give serious consideration to multiple factors rather than seeking to find a single cause.
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The California Tumor Registry was started in 1947. It consists of case abstracts of medical records on neoplasm patients seen in 40 hospitals in California and now contains data on more than 159,000 cases, with 15,000 new cases being added each year. Follow-up reports are requested annually on each case not known to be dead. The Registry is designed to (1) promote the continuing care of the patient, (2) to evaluate cancer control methods, (3) to advance knowledge of the epidemiology of cancer, and (4) to suggest leads for laboratory and clinical research. From a series of 110,628 neoplasm cases reported to the California Tumor Registry in 1942-1954, data are presented on 76,499 cancer cases initially diagnosed in reporting hospitals. Histopathologic confirmation, age, sex, stage, treatment, follow-up, and survival of cancer patients are discussed. Use of the Registry information for analyzing cancer experience for epidemiological study and for evaluation of treatment methods are also described. The report is intended to illustrate the types of data that can be obtained from the California Tumor Registry. More comprehensive reports on specific aspects of cancer control will be forthcoming.
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