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Roberta Tessari

Publications and source records attributed to Roberta Tessari.

4 recordsLinked to original sources
PubMedDate not supplied

[Epidemiological investigation on the health status of employees in two factories manufacturing and repairing railway rolling stock: a historical perspective study of mortality].

BACKGROUND: Epidemiological studies of cancer risk due to occupational exposure to asbestos in production and repair of railway rolling stock has so far given consistent results for mesothelioma, but conflicting evidence for lung cancer. OBJECTIVES: The main purpose of this study was to investigate risk for mesothelioma and lung cancer in relation to estimated patterns of exposure in the occupational environment of railway rolling stock manufacture and repair. METHODS: A historical prospective study approach was adopted. The mortality experience of the study population was compared to that of the population of the Veneto Region. Two historical cohorts of workers employed in two plants manufacturing and repairing railway coaches were followed up for mortality. A total of 1,621 workers were enrolled in the study from the first factory, and 1,190 from the second. RESULTS: An elevation of both pleural mesothelioma and lung cancer was reported in the two factories with SMRs of 21.52 (CI 95%=1.64-32.29) and 6.46 (CI 95%=1.33-18.88), and 1.26 (CI 95%=1.01-1.54) and 1.18 (CI 95%=0.81-1.66) respectively. The two excesses however showed different patterns in relation to historical exposure estimates, which appear to correlate with mesotheliomas but not with lung cancer. An elevation of mortality for non-neoplastic respiratory diseases was associated with employment during periods when it was estimated that exposure was at higher levels in one of the two firms. CONCLUSIONS: The results confirm the high carcinogenic risk deriving from asbestos exposure, although inconsistencies were found between target organs in relation to exposure estimates, and the existence of time periods in production in which cancer risk was different.

Asbestos↗
PubMedDate not supplied

[Environmental pollution from dioxins and soft tissue sarcomas in the population of Venice and Mestre: an example of the use of current electronic information sources].

OBJECTIVE: Estimating the potential carcinogenic risk associated with exposure to dioxins generated by industrial emissions and urban incinerators. DESIGN: We conducted a geographical investigation on the relationship between Soft Tissue Sarcomas (STS) and other tumours, and estimated levels of exposures to dioxins. Estimates ofthe population's exposure were derived from a historical analysis of emissions of dioxins and other pollutants, conducted by the Province of Venice in all the Venetian area in 1980-1990. Cancer cases were selected from two electronic pathology databases of Venice and Mestre, computerized since 1987. All STS diagnoses were revised in order to improve the quality of the cases in the study and cases of Kaposi sarcoma were excluded from the analysis. The 198 remaining STS--Hodgkin's lymphoma, non-Hodgkin' lymphoma and subjects with at least one cancer--were linked to the registry of residents and mapped according to the pollutant level estimates using GIS techniques. The same procedure was applied to cases of non-Hodgkin's lymphoma (n=822), Hodgkin's lymphoma (n=142) and to 25.568 cases of all cancer at other sites, with microscopic confirmation for comparison. SETTING: Venetian AULSS 12. RESULTS: Risks for STS (measured as Standardized Incidence Ratios SIR) did not show any trend related to categories of dioxin pollution. Among women, a statistically significant increased SIR of 1.69 was estimated for the highest category of exposure. The corresponding SIR for Hodgkins lymphoma was 1.94 (I.C. 1.08-1.19). No major excesses were estimated for other cancer sites. CONCLUSION: Overall, no consistent association between cancer risk and estimated exposure to dioxins was detected in the population under study However, a statistically significant excess of STS among women in the highest exposure category allows for the possibility of a role of environmental exposure.

Databases as Topic↗
PubMedDate not supplied

[End-of-life medical decisions: study of physician's opinions in four Italian centres].

OBJECTIVE: Knowing the physicians' opinions on end-of-life decisions. DESIGN: In 2002, in the context of an European collaborative study (EURELD) a structured questionnaire has been sent to the physicians of the 9 specialties mostly involved in the assistance of terminal patients. The questionnaire asked to express an opinion on 13 statements on end-of-life decisions and to express his/her intention to behave about 4 hypothetical clinical cases. SETTING: four Italian centres: Florence-Prato, Venice, Trento and Bologna. PARTICIPANTS: 1508 questionnaires were studied, the response rate ranged between 34% (Firenze) to 50% (Trento). RESULTS: In the univariate analysis, there were no significant differences between centres for the 13 statements on end-of-life decisions. In all centres, about one third physicians accepted euthanasia; about one half supported advance directives whereas most physicians would have withheld treatment on the request of patient or intensified the alleviation of symptom and pain. The intended behaviours of withholding treatment, intensifying the alleviation of pain/symptoms, euthanasia, deep sedation until death were more frequently expressed in case of the request of patient than on the physicians own initiative or on request of the family CONCLUSION: The physicians' attitudes were homogeneous between the various centers and they may well be representative of the phenomenon which has been investigated, at least in Northern-Central Italy.

Adult↗