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Physical activity, sedentary time, sleep duration, and self-rated health in older adults: A compositional analysis

TitlePhysical activity, sedentary time, sleep duration, and self-rated health in older adults: A compositional analysis
Year of Publication2018
AuthorsHaywood, N. F.
UniversityQueen's University
CityKingston, ON
Abstract

Purpose: The purpose of this study was to determine the relationship between movement behaviours that make up a day and self-rated health (SRH) in adults aged 60-79, while adjusting for time spent in all other behaviours. This required the application of a compositional data framework to the analysis, which is an emerging method in physical activity epidemiology. Methods: This study was conducted using cycles 1-3 of the Canadian Health Measures Survey. SRH, sleep duration, and covariates were self-reported, and sedentary time (ST), light-intensity physical activity (LIPA), and moderate-to-vigorous intensity physical activity (MVPA) were measured using an Actical accelerometer. Traditional descriptive statistics were computed for the outcome and covariates, while compositional descriptive statistics were displayed for the movement behaviours. Logistic regression analyses were run to determine the association between the overall composition of movement behaviours and SRH, as well as the association between each movement behaviour and SRH. The odds of reporting 'poor' or 'fair' SRH were modeled. Results: The distribution of time spent in sleep, ST, LIPA, and MVPA is associated with SRH (p

URLhttps://qspace.library.queensu.ca/handle/1974/23813
DOI
Document URLhttps://qspace.library.queensu.ca/bitstream/handle/1974/23813/Haywood_Nicole_F_201801_MSC.pdf