The historical report on the cholera epidemic of 1855, conserved in Ferrara City's archives allowed us to verify the probable relation between the environment and epidemic in a broad sense, using log-linear analysis and multiple logistic regression. Two thousand and thirty-three cases were analyzed and the quantitative/qualitative variables available from the report were analyzed in relationship with mortality and morbidity rates, considered as response variables. From the analysis of the quantitative variables, it emerges that the variables having a significant influence on the morbidity/mortality rates are the number of individuals and the average number of inhabitants per house. From the analysis of the qualitative variables, it emerges that all the descriptive variables of the state of the streets and houses express a strong association with mortality and morbidity. With the present analysis, data available--a detailed 'street by street' morbidity and mortality recording from cholera in 1855 in Ferrara--were analyzed with modern means and the overall picture that emerge is that in the better kept houses in the better parts of the town had less cholera morbidity and especially mortality.

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Linkage of various archives (municipal, hospital, autopsy) has enabled the authors to reconstruct the flow of information regarding death due to tracheal, bronchial or lung cancer (TBL ca) for the population residing within the Municipality of Ferrara during the period 1983-1985. The authors subsequently attempted to verify the cause of death by performing quality controls on clinical charts, radiologic findings, cytohistologic examinations and autopsy findings. Analysis of the data obtained in this manner suggests that municipal records are more "accurate" than are hospital records. The authors likewise indicate the usefulness and importance of the autopsy for a correct diagnosis of cause of death.