Evidence map›Paper›PMID 29845901›Full record

Trial reportThe British journal of nutrition2018

Mediators and moderators of nutrition intervention effects in remote Indigenous Australia.

Julie Brimblecombe, Megan Ferguson, Federica Barzi, Clare Brown, Kylie Ball

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The British journal of nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Digital behaviour change interventions to increase vegetable intake in adults: a systematic review.The international journal of behavioral nutrition and physical activity · 2023
    Pooled it
  3. A Socio-Cognitive Review of Healthy Eating Programs in Australian Indigenous Communities.International journal of environmental research and public health · 2022
    Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Julie Brimblecombe1Department of Nutrition,Dietetics and Food,School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences,Monash University,level 1,264 Ferntree Gully Road,Notting Hill,VIC 3168,Australia.
Megan Ferguson2Menzies School of Health Research,Wellbeing and Preventable Chronic Diseases Division,Royal Darwin Hospital Campus,Rocklands Drive,Tiwi,NT 0810,Australia.
Federica Barzi2Menzies School of Health Research,Wellbeing and Preventable Chronic Diseases Division,Royal Darwin Hospital Campus,Rocklands Drive,Tiwi,NT 0810,Australia.
Clare Brown2Menzies School of Health Research,Wellbeing and Preventable Chronic Diseases Division,Royal Darwin Hospital Campus,Rocklands Drive,Tiwi,NT 0810,Australia.
Kylie Ball3School of Exercise and Nutrition Sciences,Institute for Physical Activity and Nutrition (IPAN),Locked Bag 20000,Geelong,VIC 3220,Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We conducted a longitudinal dietary intervention study to assess the impact of a store-based intervention on mediators and moderators and consequent dietary behaviour in Indigenous communities in remote Australia. We assessed dietary intake of fruit, vegetable, water and sweetened soft drink, mediators and moderators among 148, eighty-five and seventy-three adult participants (92 % women) at baseline (T1), end of intervention (T2) and at 24 weeks post intervention (T3), respectively. Mediators included perceived affordability and self-efficacy. Moderators were barriers to eat more fruit and vegetables and food security. Mixed-effects models were used to determine changes in mediators and moderators with time and associations between these and each dietary outcome. Perceived vegetable affordability increased from T1 (19 %; 95 % CI 11, 27) to T2 (38 %; 95 % CI 25, 51) (P=0·004) and returned to baseline levels at T3. High self-efficacy to eat more fruit and vegetables and to drink less soft drink decreased from T1 to T3. A reduction in soft drink intake of 27 % (95 % CI -44, -4; P=0·02) was reported at T3 compared with T1; no changes with time were observed for all other outcome measures. Regardless of time, vegetable intake was positively associated with self-efficacy to cook and try new vegetables, no barriers and food security. The dietary intervention went someway to improving perceived affordability of vegetables but was probably not strong enough to overcome other mediators and moderators constraining behaviour change. Meaningful dietary improvement in this context will be difficult to achieve without addressing underlying constraints to behaviour change.

Indexed as

DietFeeding BehaviorAdolescentAdultAustraliaCarbonated BeveragesEatingFemaleFood SupplyFruitHumansLongitudinal StudiesMaleMiddle AgedPopulation GroupsSelf EfficacySweetening AgentsDietary intakesDietsIndigenous communitiesLongitudinal sub-studiesMediatorsModerators

Identifiers

PMID29845901
PMCPMC6088544

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.