Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention
Abstract 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 behavi...
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doaj-5175d76c5f6c4196acdc7c65031cf2c82020-11-24T20:48:25ZengBMCBMC Public Health1471-24582016-05-011611910.1186/s12889-016-3124-8Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial interventionLouise Foley0Cliona Ni Mhurchu1Samantha Marsh2Leonard H. Epstein3Tim Olds4Ofa Dewes5Ihirangi Heke6Yannan Jiang7Ralph Maddison8MRC Epidemiology Unit and UKCRC Centre for Diet and Activity Research (CEDAR), University of Cambridge School of Clinical MedicineNational Institute for Health Innovation, School of Population Health, University of AucklandNational Institute for Health Innovation, School of Population Health, University of AucklandDepartments of Pediatrics, Community Health and Health Behavior and Social and Preventive Medicine, University at Buffalo School of Medicine and Biomedical SciencesAlliance for Research in Exercise, Nutrition and Activity (ARENA), University of South AustraliaPacific Health, School of Population Health, University of AucklandHeke ConsultingNational Institute for Health Innovation, School of Population Health, University of AucklandNational Institute for Health Innovation, School of Population Health, University of AucklandAbstract 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.http://link.springer.com/article/10.1186/s12889-016-3124-8 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Louise Foley Cliona Ni Mhurchu Samantha Marsh Leonard H. Epstein Tim Olds Ofa Dewes Ihirangi Heke Yannan Jiang Ralph Maddison |
spellingShingle |
Louise Foley Cliona Ni Mhurchu Samantha Marsh Leonard H. Epstein Tim Olds Ofa Dewes Ihirangi Heke Yannan Jiang Ralph Maddison Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention BMC Public Health |
author_facet |
Louise Foley Cliona Ni Mhurchu Samantha Marsh Leonard H. Epstein Tim Olds Ofa Dewes Ihirangi Heke Yannan Jiang Ralph Maddison |
author_sort |
Louise Foley |
title |
Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention |
title_short |
Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention |
title_full |
Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention |
title_fullStr |
Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention |
title_full_unstemmed |
Screen Time Weight-loss Intervention Targeting Children at Home (SWITCH): process evaluation of a randomised controlled trial intervention |
title_sort |
screen time weight-loss intervention targeting children at home (switch): process evaluation of a randomised controlled trial intervention |
publisher |
BMC |
series |
BMC Public Health |
issn |
1471-2458 |
publishDate |
2016-05-01 |
description |
Abstract 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. |
url |
http://link.springer.com/article/10.1186/s12889-016-3124-8 |
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