biostudies-literatureUnknown16(10)Mizukami Y<h4>Background</h4>Most recurrences of non-small cell lung cancer (NSCLC) after lung resection occur within 5 years, which is why 5-year overall survival rates are used to give prognoses for lung cancer. Elderly individuals also often show comorbidities and may die from other diseases. Few studies have examined the long-term prognosis of elderly patients with NSCLC, and no reports have investigated drop-out from follow-up after resection of NSCLC, including in elderly patients. This retrospective cohort study analyzed and surveyed long-term prognosis and drop-out from follow-up, including in elderly patients, after resection of lung cancer.<h4>Methods</h4>We identified 349 consecutive patients after lung resection between January 2009 and March 2011. Twenty-two cases were excluded because Journal of thoracic disease6740-6751https://www.ebi.ac.uk/biostudies/studies/S-EPMC11565360biostudies-literatureComparative prognosis of long-term follow-up over 10 years and dropout from follow-up after resection of lung cancer.PMC11565360Mizukami YChiba YAoyagi MSato KAdachi HfalseComparative prognosis of long-term follow-up over 10 years and dropout from follow-up after resection of lung cancer.<h4>Background</h4>Most recurrences of non-small cell lung cancer (NSCLC) after lung resection occur within 5 years, which is why 5-year overall survival rates are used to give prognoses for lung cancer. Elderly individuals also often show comorbidities and may die from other diseases. Few studies have examined the long-term prognosis of elderly patients with NSCLC, and no reports have investigated drop-out from follow-up after resection of NSCLC, including in elderly patients. This retrospective cohort study analyzed and surveyed long-term prognosis and drop-out from follow-up, including in elderly patients, after resection of lung cancer.<h4>Methods</h4>We identified 349 consecutive patients after lung resection between January 2009 and March 2011. Twenty-two cases were excluded because 2024-01-01T00:00:00Z2024 Oct2025-04-18T12:50:51.487Z2025-04-06T22:13:52.109ZS-EPMC115653603955287110.21037/jtd-24-909