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Table 3 Comparison of lung cancer frequency, stage, and cause of mortality according to presence pleural plaques. The table includes events from the entire period of lung cancer screening (median follow-up 9.5 years). Notably, pleural plaques were searched on baseline LDCT, therefore detection of pleural plaques either preceded (e.g. event at incidence rounds) or was synchronous (e.g. event at baseline round) to each detailed event

From: Pleural plaques in lung cancer screening by low-dose computed tomography: prevalence, association with lung cancer and mortality

  All patients (n = 1570) Men with pleural plaques (n = 31) Men without pleural plaques (n = 1539) p a
Total person-years follow-up 14,533.3 278.0 14,255.3  
Median person-years follow-up 9.5 9.4 9.5  
Patients with lung cancer 68 (4.3%) 3 (9.7%) 65 (4.2%) 0.148
Lung cancer stage
 I or II 39 (57.4%) 0 39 (60%) 0.073
 III or IV 29 (42.6%) 3 (100%) 26 (40.0)
Total deaths 87 (5.5%) 4 (12.9%) 83 (5.4%) 0.088
Lung cancer deaths 27 (1.7%) 3 (9.7%) 24 (1.6%) 0.015
Deaths from causes other than lung cancer 60 (3.8%) 1 (3.2%) 59 (3.8%) 1.0
  1. aFisher exact test