RF25 The role of social networks in weight management interventions during pregnancy and postpartum for women who are overweight and obese: a systematic review
2018
Background:
Maternal obesity is a growing public health issue.
It is associated with pregnancy and birth complications and
increased risk for childhood and long-term obesity. Interventions focusing on individual behaviour change have had a
modest impact on clinical outcomes. There is increasing evidence that social networks are an important driver of obesityrelated behaviours. The aim of this systematic review is to
explore the effectiveness of lifestyle interventions that use
social networks for weight management and to explore participants’ experiences, and the process outcomes of these
interventions.
Methods:
MEDLINE, PsychINFO, EMBASE, Cochrane, CENTRAL and CINAHL databases were searched as well as
reference lists of included studies. Eligibility criteria
included: intervention studies with a comparator group and
qualitative studies/process evaluations of the included intervention studies; pregnant or postnatal women (<2 years)
with BMI >25 kg/m2
; a lifestyle intervention with a social
network component; and a gestational or postpartum weight
outcome. Protocol papers were included to aid extraction of
intervention components and behaviour change techniques
(BCTs). Articles were screened by two independent
reviewers. Data extraction is ongoing and studies will be
assessed for quality and risk of bias. BCTs and social network functions are also being coded by two reviewers and
will be summarised in tables. We will assess heterogeneity
and, if possible, a random-effects meta-analysis and a priori
specified subgroup analyses will be conducted. We will carry
out a narrative synthesis.
Results:
A total of 10 211 records were identified from databases with 73 full-text articles and another 25 identified
from references screened. 30 articles (15 studies) were
included. 8 potentially relevant studies are ongoing or
results have not yet been published. Searches will be rerun
before the final analyses. Preliminary findings are that the
interventions are heterogeneous but most were group-based
and delivered face-to-face. Interventions often advised on
obtaining social support from existing social network (e.g.
family), arranged support through created social networks
(e.g. group of mothers) and a few directly involved the participants’ partner in the intervention. None used social network data to accelerate behaviour change among
participants.
Conclusion:
Interventions often include social support from
existing or created social networks as a BCT. There is a
lack of interventions that purposefully utilise social network
data. More qualitative research with participants and process evaluations are required. The findings of this review
will be used to inform the development of a weight management intervention that mobilises social networks for
behaviour change.
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