BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260601T072524EDT-4327sWcwov@132.216.98.100 DTSTAMP:20260601T112524Z DESCRIPTION:\n \n \n \n TITLE / TITRE\n State-dependent Sampling in Observationa l Cohort Studies.\n \n ABSTRACT / RÉSUMÉ \n\n Observational cohort studies of chronic disease involve the recruitment and follow-up of a sample of indi viduals with the goal of learning about the course of the disease\, the ef fect of fixed and time-varying risk factors. Analysis of this information is often facilitated by using multistate models with intensity functions g overning transition between disease states. Chronic disease studies often involve conditions for recruitment\, for example incident cohort involves individuals who are healthy at accrual\, prevalent cohort samples individu als who have already developed the disease\, and a length biased sampling includes individual who are alive at the time of recruitment. In this talk we discuss the impact of ignoring state-dependent sampling in life histor y analysis and the ways of addressing the issue using auxiliary informatio n. A longitudinal study of aging and cognition among religious sisters is used to illustrate the related methodology.\n\n Adresse\n\n PLACE/LIEU \n\n C RM\, Pavillon André-Aisenstadt \, Room 5340\n\n The presentation will also be accessible using Zoom with the following information:\n\n \n Link: https: //us06web.zoom.us/j/84226701306?pwd=UEZ5NVpZaUlldW5qNU8vZzIvbEJXQT09 \,\n M eeting ID: 842 2670 1306\,\n Passcode: 692788.\n \n \n \n \n\n\n \n DTSTART:20231122T203000Z DTEND:20231122T213000Z SUMMARY:Leilei Zeng (University of Waterloo) URL:/mathstat/channels/event/leilei-zeng-university-wa terloo-352826 END:VEVENT END:VCALENDAR