The correlation between cancer of the breast, colon and stomach dietary factors, and various indicators of standard of living was examined. Cancer of the breast and colon was highly correlated with fat and animal protein.

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The purpose of the present study was to develop a method of determining the patients who are at risk and require prophylaxis.In a prospective study of 535 patients various clinical factors believed to predispose to deep venous thrombosis have been studied using a linear logistic analysis. The patients had been screened with the 125I-fibrinogen test. A standard computer program was used to obtain the maximum likelihood estimates of the coefficients for the various factors studied. The most important factor was age; premedication with omnopon, presence of varicose veins, infection, history of previous DVT, severity and type of operation were also significant.For any patient the logit y can be estimated and expressed as a percentage risk of thrombosis using the equation y = −6.00 + (Age × 0.0617) + (History of previous DVT × 1.38) + (V. veins × 1.26) + (Premedication with omnopon × 0.97) + (Infection × 0.84) -(Urological operation × 1.94) - (Thoracic operation × 1.15) derived from the significant factors and their coefficients. (The values of factors other than age are either 0 = absent, or 1 = present.)

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