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Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention.

Foley, Louise, Ni Mhurchu, Cliona, Marsh, Samantha, Epstein, Leonard H, Olds, Tim, Dewes, Ofa, Heke, Ihirangi, Jiang, Yannan and Maddison, Ralph 2016, Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention., BMC Public Health, vol. 16, no. 439, pp. 1-9, doi: 10.1186/s12889-016-3124-8.

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Title Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention.
Author(s) Foley, Louise
Ni Mhurchu, Cliona
Marsh, Samantha
Epstein, Leonard H
Olds, Tim
Dewes, Ofa
Heke, Ihirangi
Jiang, Yannan
Maddison, Ralph
Journal name BMC Public Health
Volume number 16
Issue number 439
Start page 1
End page 9
Total pages 9
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2016-05-26
ISSN 1471-2458
Summary BACKGROUND: The Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH) trial tested a family intervention to reduce screen-based sedentary behaviour in overweight children. The trial found no significant effect of the intervention on children's screen-based sedentary behaviour. To explore these null findings, we conducted a pre-planned process evaluation, focussing on intervention delivery and uptake. METHODS: SWITCH was a randomised controlled trial of a 6-month family intervention to reduce screen time in overweight children aged 9-12 years (n = 251). Community workers met with each child's primary caregiver to deliver the intervention content. Community workers underwent standard training and were monitored once by a member of the research team to assess intervention delivery. The primary caregiver implemented the intervention with their child, and self-reported intervention use at 3 and 6 months. An exploratory analysis determined whether child outcomes at 6 months varied by primary caregiver use of the intervention. RESULTS: Monitoring indicated that community workers delivered all core intervention components to primary caregivers. However, two thirds of primary caregivers reported using any intervention component "sometimes" or less frequently at both time points, suggesting that intervention uptake was poor. Additionally, analyses indicated no effect of primary caregiver intervention use on child outcomes at 6 months, suggesting the intervention itself lacked efficacy. CONCLUSIONS: Poor uptake, and the efficacy of the intervention itself, may have played a role in the null findings of the SWITCH trial on health behaviour and body composition. TRIAL REGISTRATION: The trial was registered in the Australian and New Zealand Clinical Trials Registry (no. ACTRN12611000164998 ); registration date: 10/02/2011.
Language eng
DOI 10.1186/s12889-016-3124-8
Field of Research 111799 Public Health and Health Services not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, BioMed Central
Persistent URL http://hdl.handle.net/10536/DRO/DU:30087852

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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