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Kaplan–Meier survival curve of OS rates between aspirin users (≥180 days) and non-users. The median OS rates of aspirin non-users (None) was about 5.9 years, and the estimated 5- and 10-year OS rates were 54.9% and 42.4%, respectively. Although median survival was not reached for aspirin users (≥180 days), estimated 5- and 10-year OS rates were 79.9% and 62.0%, respectively. **** indicates p ≤ 0.0001.
