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Understanding the Relationship between Socio-Economic Status, Physical Activity and Sedentary Behaviour, and Adiposity in Young Adult South African Women Using Structural Equation Modelling
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2017 (English)In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 14, no 10, article id 1271Article in journal (Refereed) Published
Abstract [en]

Socio-economic status (SES) is an important predictor of obesity, but how it is associated with differences in physical activity and sedentary behaviour is less clear. This cross-sectional study examined the association between SES (sum of household assets), physical activity and sedentary time, and how they predict adiposity. Socio-demographic, anthropometric, and physical activity data on rural (n = 509) and urban (n = 510) South African women (18-23 years) were collected. Overweight and obesity prevalence, and sedentary time, were higher; and moderate-vigorous intensity physical activity (MVPA) was lower, in the urban sample. Structural equation models (SEMs) were constructed for BMI and waist circumference. In the urban sample SES had a direct inverse effect on MVPA (beta; 95% CI, -41.69; -73.40 to -9.98), while in the rural sample SES had a direct effect on BMI (beta; 95% CI, 0.306; 0.03 to 0.59). In the pooled sample, SES had a direct inverse effect on MVPA (beta; 95% CI, 144; -170.34 to -119.04), and MVPA was directly associated with BMI (beta; 95% CI, 0.04; 0.01 to 0.08). The influence of SES, and the role of physical activity and sedentary time on adiposity differs between the urban and rural samples, and the importance of other environmental and behavioural factors must be considered in the development of obesity and the design of effective interventions.

Place, publisher, year, edition, pages
2017. Vol. 14, no 10, article id 1271
Keywords [en]
socio-economic status, urban, rural, physical activity, South Africa, sedentary, body mass index, waist rcumference
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:umu:diva-142268DOI: 10.3390/ijerph14101271ISI: 000414763200180OAI: oai:DiVA.org:umu-142268DiVA, id: diva2:1161912
Available from: 2017-12-01 Created: 2017-12-01 Last updated: 2018-06-09Bibliographically approved

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