Abstract 30: Associations of Accelerometer-Measured Machine-Learning Classified Sitting With All-Cause and Cardiovascular Disease Mortality Among Older Women: The Opach Study - Nguyen, Steve; Bellettiere, John; Di, Chongzhi; Anuskiewicz, Blake; Natarajan, Loki; Lamonte, Michael J; LaCroix, Andrea Z (Circulation (New York, N.Y.), 2023)