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Professor Tim Olds, School of Health Sciences, University of South Australia 
Wednesday 08 November 2017, 12:30-13:30
Building your best day: combining compositional analysis and optimisation theory
- 👤 Speaker: Professor Tim Olds, School of Health Sciences, University of South Australia 🔗 Website
- 📅 Date & Time: Wednesday 08 November 2017, 12:30 - 13:30
- 📍 Venue: Meeting Rooms 1&2, MRC Epidemiology Unit, Level 3, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge CB2 0QQ
Abstract
The foundational principle of behavioural epidemiology is that the way we use our time— physical activity, sleep, sitting, social interactions — affects our health, everything from asthma to eczema. Typically these studies have been done by regressing a health outcome (say depression) against a behavioural domain, such as physical activity. However, because time use data are co-dependent, any change in time allocated to one domain must be matched by an equal and opposite allocation to the other domains collectively.
This presentation will show some examples of the application of compositional data analysis (CoDA) as a new approach to time-use data. By combining CoDA with optimisation theory, we can move towards specifying the best possible 24-hour day for any given health outcome or set of outcomes.
Series This talk is part of the IMS Epidemiology Seminars series.
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- Annual Food Agenda
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- Meeting Rooms 1&2, MRC Epidemiology Unit, Level 3, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge CB2 0QQ
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