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- W3100623077 abstract "PURPOSE Benefit of lung cancer screening using low-dose computed tomography (LDCT) in reducing lung cancer–specific and all-cause mortality is unclear. We undertook a meta-analysis to assess its associations with outcomes. METHODS We searched the literature and previous systematic reviews to identify randomized controlled trials comparing LDCT screening with usual care or chest radiography. We performed meta-analysis using a random effects model. The primary outcomes were lung cancer–specific mortality, all-cause mortality, and the cumulative incidence ratio of lung cancer between screened and unscreened groups as a measure of overdiagnosis. RESULTS Meta-analysis was based on 8 trials with 90,475 patients that had a low risk of bias. There was a significant reduction in lung cancer–specific mortality with LDCT screening (relative risk = 0.81; 95% CI, 0.74-0.89); the estimated absolute risk reduction was 0.4% (number needed to screen = 250). The reduction in all-cause mortality was not statistically significant (relative risk = 0.96; 95% CI, 0.92-1.01), but the absolute reduction was consistent with that for lung cancer–specific mortality (0.34%; number needed to screen = 294). In the studies with the longest duration of follow-up, the incidence of lung cancer was 25% higher in the screened group, corresponding to a 20% rate of overdiagnosis. CONCLUSIONS This meta-analysis showing a significant reduction in lung cancer–specific mortality, albeit with a tradeoff of likely overdiagnosis, supports recommendations to screen individuals at elevated risk for lung cancer with LDCT." @default.
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- W3100623077 date "2020-11-01" @default.
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- W3100623077 title "Cancer-Specific Mortality, All-Cause Mortality, and Overdiagnosis in Lung Cancer Screening Trials: A Meta-Analysis" @default.
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- W3100623077 doi "https://doi.org/10.1370/afm.2582" @default.
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