Increasing of malignant pleural mesothelioma: burning issue in Split-Dalmatian County, Croatia (original) (raw)
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Malignant Pleural Mesothelioma: Occupational and Non-Occupational Asbestos Exposures
Journal of lung, pulmonary & respiratory research, 2016
The objectives of this study was to review many epidemiological risk factors on the occurrence of malignant pleural mesothelioma among occupational and non-occupational asbestos-exposed men and women mentioned in several previous studies. Asbestos exposure is a well-documented etiological factor of malignant pleural mesothelioma. The majority of cases are men and only 40% of female cases are occupational exposure. Many western and developing countries are currently suffering malignant pleural mesothelioma epidemic due to their extensive use of asbestos. Exposure to all types of asbestos can induce malignant mesothelioma, including cancer of lung, larynx, ovary, and gastrointestinal organs, particularly, colorectal region. Approximately, 125 million people expose to asbestos in their workplaces worldwide. There are several limitations of the studies on association of the asbestos exposures, both occupational and para-occupational or nonoccupational causes, such as inability to take into account confounding by occupational asbestos exposure, difficulties in retrace past exposures, inadequacy of the length of followup, various exposure levels at different factories, and unavailability of data regarding the type of asbestos used and measurements of the airborne asbestos dust concentration in each factory. Currently, there are many governmental asbestos-use-control organizations, including malignant pleural mesothelioma database in many countries, such as The Italian
Epidemiology of malignant pleural mesotheliomas in Croatia in the period from 1989 to 1998
Collegium antropologicum, 2002
Malignant pleural mesotheliomas are rare tumors. Their occurrence is often associated with the exposure to asbestos. Asbestos is widely used in various industries as well as for many types of products in everyday use. In Croatia in the period from 1989 to 1998, the rate of incidence was 0.4-1.1/100,000. The highest rate of incidence was in the Districts of Istria (2.9) and Split-Dalmatia (2.5). It is more frequent among males than among females with a ratio of 3.2:1. It rarely occurs before the age of 40 and most of the patients suffering from the disease are more than 65 years old. About 12% of mesotheliomas metastasize into regional lymph nodes and 17% of them into distant organs. The disease unavoidably leads to death and, according to the data obtained in Croatia in the period from 1989 to 1998 the mortality and incidence are very close.
International Journal of Cancer, 2012
Due to the large scale use of asbestos (more than 3.5 million tons produced or imported until its definitive banning in 1992), a specific national surveillance system of mesothelioma incident cases is active in Italy, with direct and individual anamnestic etiological investigation. In the period between 1993 and 2004, a case-list of 8,868 pleural MM was recorded by the Italian National Register (ReNaM) and the modalities of exposure to asbestos fibres have been investigated for 6,603 of them. Standardized incidence rates are 3.49 (per 100,000 inhabitants) for men and 1.25 for women, with a wide regional variability. Occupational asbestos exposure was in 69.3% of interviewed subjects (N 5 4,577 cases), while 4.4% was due to cohabitation with someone (generally, the husband) occupationally exposed, 4.7% by environmental exposure from living near a contamination source and 1.6% during a leisure activity. In the male group, 81.5% of interviewed subjects exhibit an occupational exposure. In the exposed workers, the median year of first exposure was 1957, and mean latency was 43.7 years. The analysis of exposures by industrial sector focuses on a decreasing trend for those traditionally signaled as ''at risk'' (asbestos-cement industry, shipbuilding and repair and railway carriages maintenance) and an increasing trend for the building construction sector. The systematic mesothelioma surveillance system is relevant for the prevention of the disease and for supporting an efficient compensation system. The existing experience on all-too-predictable asbestos effects should be transferred to developing countries where asbestos use is spreading. Key words: asbestos, mesothelioma, pleural, national register, Italy ReNaM Working Group: Massari S., Branchi C.; Detragiache E.; Merletti F., Gangemi M., Stura A., Brentisci C., Cammarieri Diglio G., Macerata V., Gilardetti M.; Lazzarotto A., Benfatto L., Bianchelli M., Mazzucco G.; Sieno C., Pesatori A.C.; Gioffrè F., Bressan V.; De Michieli P.; Mangone L., Storchi C.; Seniori Costantini A., Badiali A.M., Cacciarini V., Giovannetti L., Martini A.; Calisti R.; La Rosa F., Stracci F., D'Alò D.; Perucci C.A., Forastiere F., Cavariani F., Ascoli V., Sangalli M.; Trafficante L., Gatta S.; Menegozzo M., Izzo F., Canfora M.L., Santoro M., Viscardi F.; Massaro T.; Convertini L.; Leotta A., Lio S.G.; Dardanoni G., Scondotto S.; Corrias G.A., Angius M.R., Nieddu V.
Non-occupational malignant pleural mesothelioma due to asbestos and non-asbestos fibres
Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace / Fondazione clinica del lavoro, IRCCS [and] Istituto di clinica tisiologica e malattie apparato respiratorio, Università di Napoli, Secondo ateneo, 2006
The occurrence of malignant pleural mesothelioma (MPM) has been reported among population groups with no documented professional exposure to asbestos fibres living in different geographic areas. This paper reviews existing data related to non occupational MPM including its occurrence in the province of Catania (Sicily, Italy). An electronic search of literature related to non occupational MPM was performed including the year 2005. Non occupational MPM in subjects living in areas contaminated by a variety of asbestos and non asbestos fibres has been well documented through a number of epidemiologic studies including cases series, case-control studies, and a cohort study. In addition, the observation of familial clustering of MPM, suggests that genetic factors may play a role in the pathogenesis of this malignancy. The epidemiological evidence also suggests that MPM may occur as a result of the interaction between environmental carcinogens, genetic factors, and virus infection. It is ...
American Journal of Epidemiology, 1998
A hospital-based case-control study of the association between past occupational exposure to asbestos and pleural mesothelioma was carried out in five regions of France. Between 1987 and 1993, 405 cases and 387 controls were interviewed. The job histories of these subjects were evaluated by a group of experts for exposure to asbestos fibers according to probability, intensity, and frequency. A cumulative exposure index was calculated as the product of these three parameters and the duration of the exposed job, summed over the entire working life. Among men, the odds ratio increased with the probability of exposure and was 1.2 (95% confidence interval (Cl) 0.8-1.9) for possible exposure and 3.6 (95% Cl 2.4-5.3) for definite exposure. A dose-response relation was observed with the cumulative exposure index: The odds ratio increased from 1.2 (95% Cl 0.8-1.8) for the lowest exposure category to 8.7 (95% Cl 4.1-18.5) for the highest. Among women, the odds ratio for possible or definite exposure was 18.8 (95% Cl 4.1-86.2). We found a clear dose-response relation between cumulative asbestos exposure and pleural mesothelioma in a population-based case-control study with retrospective assessment of exposure. A significant excess of mesothelioma was observed for levels of cumulative exposure that were probably far below the limits adopted in most industrial countries during the 1980s. Am J Epidemiol 1998; 148:133-42. asbestos; case-control studies; mesothelioma; occupational exposure Mesothelioma is a rare cancer that is mainly due to occupational or nonoccupational asbestos exposure. The background level is assumed to be as low as 1-2 per million inhabitants (1). During recent decades, however, its prevalence has been increasing in the general populations of most industrialized countries (2, 3).
European Respiratory Journal, 1996
Inhabitants of the Metsovo area, northwest Greece have been exposed since childhood to inhalation of asbestos, from a material containing tremolite, used for whitewashing ("luto soil"). This has resulted in endemic pleural calcifications (47% of adult population) and increased incidence of malignant pleural mesothelioma (MPM). In 1987, we reported that the incidence of MPM between 1981-1985 was around 300 times higher than expected in a nonasbestos exposed population (seven cases in 5 yrs in a population of 4,000-5,000). The present study is an updated report regarding this "mesothelioma epidemic", in conjunction with the diminished use and final abandonment of "luto soil" in the early 1980s. It appears that the incidence of MPM in Metsovo has dropped considerably since our first report. Between 1985-1994, we diagnosed six such cases (incidence rate=1.4 cases per 10,000 person-years), whilst between 1980-1984 eight cases had been diagnosed (incidence rate = 3.7 cases per 10,000 person-years). Although, because of the small number of cases, this did not reach statistical significance (p=0.08), we note that the incidence is now considerably lower than before. Had it remained unchanged, we would have expected 17 cases of MPM instead of six. This drop follows the diminished use of "luto" whitewash (by 92% of the population in 1950 and only 18% in 1980). If we take into account a 30-40 year latency period for mesothelioma, we expect that the "Metsovo mesothelioma epidemic" will fade away by the year 2020-2030, since the material has not been used since 1985.
Thorax, 2014
Objectives To estimate the proportion of pleural mesothelioma cases that can be attributed to asbestos exposure in France including non-occupational exposure. Methods A population-based case-control study including 437 incident cases and 874 controls was conducted from 1998 to 2002. Occupational and nonoccupational asbestos exposure was assessed retrospectively by two expert hygienists. ORs of pleural mesothelioma for asbestos-exposed subjects compared to non-exposed subjects, and population-attributable risk (ARp) of asbestos exposure were estimated using a conditional logistic regression. Results A clear dose-response relationship was observed between occupational asbestos exposure and pleural mesothelioma (OR=4.0 (99% CI 1.9 to 8.3) for men exposed at less than 0.1 f/mL-year vs 67.0 (99% CI 25.6 to 175.1) for men exposed at more than 10 f/mL-year). The occupational asbestos ARp was 83.1% (99% CI 74.5% to 91.7%) for men and 41.7% (99% CI 25.3% to 58.0%) for women. A higher risk of pleural mesothelioma was observed in subjects nonoccupationally exposed to asbestos compared to those never exposed. The non-occupational asbestos ARp for these subjects was 20.0% (99% CI −33.5% to 73.5%) in men and 38.7% (99% CI 8.4% to 69.0%) in women. When considering all kinds of asbestos exposure, ARp was 87.3% (99% CI 78.9% to 95.7%) for men and 64.8% (99% CI 45.4% to 84.3%) for women. Conclusions Our study suggests that the overall ARp in women is largely driven by non-occupational asbestos exposure arguing for the strong impact of such exposure in pleural mesothelioma occurrence. Considering the difficulty in assessing domestic or environmental asbestos exposure, this could explain the observed difference in ARp between men and women.