ORIGINAL PAPER
Pleural mesothelioma in household members of asbestos-exposed workers in Friuli Venezia Giulia, Italy
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University of Trieste, Trieste, Italy
(Clinical Unit of Occupational Medicine, Department of Medicine, Surgery and Health Sciences)
Online publication date: 2017-03-20
Corresponding author
Flavia D'Agostin
F. D’Agostin, University of Trieste, Clinical Unit of Occupational Medicine, Department of Medicine, Surgery and Health Sciences, Via Pietà 19,
34100 Trieste, Italy
Int J Occup Med Environ Health. 2017;30(3):419-31
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ABSTRACT
Objectives: Malignant mesothelioma is closely associated to asbestos exposure. One such exposure may occur through contact
with occupationally exposed household members and their belongings. This study examines the features of pleural mesothelioma
attributable only to asbestos brought home by another family member. Material and Methods: The data sources
were 1063 mesothelioma cases diagnosed between 1995 and 2014, from the Friuli Venezia Giulia Mesothelioma Register.
In all cases the diagnosis of mesothelioma was based on the pathology report. Exposure information and demographic
data were acquired by an occupational medical standardized questionnaire/interview. Results: Household-exposure mesothelioma
cases included 33 women and 2 men. Relationships were: wives (N = 22), daughters (N = 9), sons (N = 2),
and mothers (N = 2). Asbestos exposure in the workers predominantly occurred in shipyards. Out of the 35 pleural cases,
19 were epithelial, 9 biphasic, 3 sarcomatoid, and 4 not specified. The mean age at diagnosis was 77 years old. The mean
latency was 59 years, with wives having a significant shorter latency than offspring. Latency was not significantly related
to morphology and asbestosis. The overall mean survival was 16 months (median 11 months) but treatment was beneficial
(mean 16 months vs. 7 months). Biphasic/sarcomatoid histology and presence of asbestosis were associated with
a decreased survival, although not with statistical significance. Conclusions: Our data confirms that household exposure
increases the risk for pleural mesothelioma amongst women with no history of occupational asbestos exposure. This is
an ongoing problem in many countries, as well as in Italy, where the evaluation of a framework for the compensation of
these cases is under debate. Int J Occup Med Environ Health 2017;30(3):419–431