|Titre :||Altering the availability or proximity of food, alcohol, and tobacco products to change their selection and consumption (Intervention review) (2019)|
|Auteurs :||G. J. HOLLANDS ; P. CARTER ; S. ANWER ; S. E. KING ; S. A. JEBB ; D. OGILVIE ; I. SHEMILT ; J. P. T. HIGGINS ; T. M. MARTEAU|
|Type de document :||Article : Périodique|
|Dans :||Cochrane Database of Systematic Reviews (n°9, 2019)|
|Article en page(s) :||CD012573 ; 95 p.|
|Discipline :||PRE (Prévention / Prevention)|
Thésaurus TOXIBASEALCOOL ; TABAC ; ALIMENTATION ; ACHAT ; CONSOMMATION ; INTERVENTION ; COMPORTEMENT ; DIFFUSION DES PRODUITS
Unhealthy patterns of consumption of food, alcohol, and tobacco products are important causes of ill health. Changing the availability (the range or amount of options, or both) of these products or their proximity (the distance at which they are positioned) to potential consumers could help people make healthier choices.
What is the aim of this review?
This review investigated whether altering the availability or proximity of food (including non-alcoholic beverages), alcohol, and tobacco products changed people's selection (such as purchasing) or consumption of those products. We searched for all available evidence from randomised controlled trials (a type of study in which participants are assigned to one of two or more treatment groups using a random method) to answer this question, and found 24 studies, all of which were conducted in high-income countries.
What are the main results of the review?
Six studies involved availability interventions, of which four changed the relative proportion of less-healthy to healthier options, and two changed the absolute number of different options available. In statistical analyses that combined results from multiple studies, it was found that reducing the number of available options for a particular range or category of food(s) reduced selection of those food products (from analysing 154 participants) and possibly reduced consumption of those products (from 150 participants). However, the certainty of the evidence for these effects was low.
Eighteen studies involved proximity interventions. Most (14/18) changed the distance at which a snack food or drink was placed from the participants, whilst four studies changed the order of meal components encountered along a line. One study found that this reduced selection of food (from analysing 41 participants), whilst in a statistical analysis combining results from multiple studies, it was found that placing food farther away reduced consumption of those food products (from analysing 1098 participants). However, the certainty of the evidence for these effects was very low and low, respectively.
Mindful of its limitations, the current evidence suggests that changing the number of available food options or changing where foods are positioned could contribute to meaningful changes in behaviour, justifying policy actions to promote such changes to food environments. However, more high-quality studies in real?world settings are needed to make this finding more certain.
How up-to-date is this review?
The evidence is current to 23 July 2018.
|Domaine :||Alcool / Alcohol ; Tabac / Tobacco|
|Sous-type de document :||Revue de la littérature / Literature review|
|Affiliation :||Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK|