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A total of 174 cases with primary lung cancer was examined on survival. Survival rates were compared between some categories in each prognostic factor (univariate analyses), and significant factors affecting survival were obtained by multivariate analyses using Cox's proportional hazard model. Univariate analyses showed a significant difference in survival in relation to tumor doubling time (DT),...
Background. Relationships between tumor doubling time (DT) and other prognostic factors and the risk of death related to these factors are not yet fully understood. Methods. Tumor doubling time of primary lung carcinomas of 174 patients, detected in a limited number of local municipalities during a limited period, was calculated using the Schwartz formula. Survival rate of the 174 patients was...
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