TY - JOUR
T1 - Pleural plaques in lung cancer screening by low-dose computed tomography
T2 - Prevalence, association with lung cancer and mortality
AU - Silva, Mario
AU - Sverzellati, Nicola
AU - Colombi, Davide
AU - Milanese, Gianluca
AU - La Vecchia, Carlo
AU - Galeone, Carlotta
AU - Marchianò, Alfonso
AU - Pastorino, Ugo
PY - 2017/11/25
Y1 - 2017/11/25
N2 - Background: To report the prevalence of pleural plaques in a lung cancer screening trial by low-dose computed tomography (LDCT) and to test the association with incidence of lung cancer and mortality. Methods: The LDCT of 2303 screenees were retrospectively reviewed with the specific aim of describing the prevalence and features of pleural plaques. Self-administered questionnaire was used to assess asbestos exposure. Frequency of lung cancer, lung cancer mortality, and overall mortality were detailed according to presence of pleural findings. Statistical analyses included comparison of mean or median, contingency tables, and Cox model for calculation of hazard ratio (HR) and its 95% confidence interval (CI). Results: Among male screenees, 31/1570 (2%) showed pleural abnormalities, 128/1570 (8.2%) disclosed asbestos exposure, 23/31 (74.2%) subjects with pleural plaques consistently denied exposure to asbestos. There was a trend for higher frequency of lung cancer among subjects with pleural plaques (9.7% vs 4.2%). Lung cancer in subjects with pleural plaques was always diagnosed in advanced stage. Subjects with pleural plaques showed HR 5.48 (95% CI 1.61-18.70) for mortality from lung cancer. Conclusions: Pleural plaques are a risk factor for lung cancer mortality that can be detected in lung cancer screening by LDCT, also in subjects that are not aware of asbestos exposure. Trial registration:NCT02837809- Retrospectively registered July 1, 2016 - Enrolment of first participant September 2005.
AB - Background: To report the prevalence of pleural plaques in a lung cancer screening trial by low-dose computed tomography (LDCT) and to test the association with incidence of lung cancer and mortality. Methods: The LDCT of 2303 screenees were retrospectively reviewed with the specific aim of describing the prevalence and features of pleural plaques. Self-administered questionnaire was used to assess asbestos exposure. Frequency of lung cancer, lung cancer mortality, and overall mortality were detailed according to presence of pleural findings. Statistical analyses included comparison of mean or median, contingency tables, and Cox model for calculation of hazard ratio (HR) and its 95% confidence interval (CI). Results: Among male screenees, 31/1570 (2%) showed pleural abnormalities, 128/1570 (8.2%) disclosed asbestos exposure, 23/31 (74.2%) subjects with pleural plaques consistently denied exposure to asbestos. There was a trend for higher frequency of lung cancer among subjects with pleural plaques (9.7% vs 4.2%). Lung cancer in subjects with pleural plaques was always diagnosed in advanced stage. Subjects with pleural plaques showed HR 5.48 (95% CI 1.61-18.70) for mortality from lung cancer. Conclusions: Pleural plaques are a risk factor for lung cancer mortality that can be detected in lung cancer screening by LDCT, also in subjects that are not aware of asbestos exposure. Trial registration:NCT02837809- Retrospectively registered July 1, 2016 - Enrolment of first participant September 2005.
KW - Asbestos exposure
KW - Lung cancer screening
KW - Pleural abnormalities
KW - Pleural plaques
KW - Post-test refinement of individual risk
KW - Self-disclosure of asbestos exposure
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U2 - 10.1186/s12890-017-0506-3
DO - 10.1186/s12890-017-0506-3
M3 - Article
AN - SCOPUS:85034858368
VL - 17
JO - BMC Pulmonary Medicine
JF - BMC Pulmonary Medicine
SN - 1471-2466
IS - 1
M1 - 155
ER -