Modeling the impact of calorie-reduction interventions on population prevalence and inequalities in childhood obesity in the Southampton Women's Survey.
Southampton Women's Survey
causal modeling
child and adolescent health
dietary interventions
health inequalities
obesity
Journal
Obesity science & practice
ISSN: 2055-2238
Titre abrégé: Obes Sci Pract
Pays: United States
ID NLM: 101675151
Informations de publication
Date de publication:
Oct 2021
Oct 2021
Historique:
received:
01
02
2021
revised:
26
03
2021
accepted:
02
05
2021
entrez:
11
10
2021
pubmed:
12
10
2021
medline:
12
10
2021
Statut:
epublish
Résumé
In the United Kingdom, rates of childhood obesity are high and inequalities in obesity have widened in recent years. Children with obesity face heightened risks of living with obesity as adults and suffering from associated morbidities. Addressing population prevalence and inequalities in childhood obesity is a key priority for public health policymakers in the United Kingdom and elsewhere. Where randomized controlled trials are not possible, potential policy actions can be simulated using causal modeling techniques. Using data from the Southampton Women's Survey (SWS), a cohort with high quality dietary and lifestyle data, the potential impact of policy-relevant calorie-reduction interventions on population prevalence and inequalities of childhood obesity was investigated. Predicted probabilities of obesity (using UK90 cut-offs) at age 6-7 years were estimated from logistic marginal structural models adjusting for observed calorie consumption at age 3 years (using food diaries) and confounding. A series of policy-relevant intervention scenarios were modeled to simulate reductions in energy intake (differing in effectiveness, the targeting mechanisms, and level of uptake). At age 6-7 years, 8.3% of children were living with obesity, after accounting for observed energy intake and confounding. A universal intervention to lower median energy intake to the estimated average requirement (a 13% decrease), with an uptake of 75%, reduced obesity prevalence by 1% but relative and absolute inequalities remained broadly unchanged. Simulated interventions substantially reduced population prevalence of obesity, which may be useful in informing policymakers.
Sections du résumé
BACKGROUND
BACKGROUND
In the United Kingdom, rates of childhood obesity are high and inequalities in obesity have widened in recent years. Children with obesity face heightened risks of living with obesity as adults and suffering from associated morbidities. Addressing population prevalence and inequalities in childhood obesity is a key priority for public health policymakers in the United Kingdom and elsewhere. Where randomized controlled trials are not possible, potential policy actions can be simulated using causal modeling techniques.
OBJECTIVES
OBJECTIVE
Using data from the Southampton Women's Survey (SWS), a cohort with high quality dietary and lifestyle data, the potential impact of policy-relevant calorie-reduction interventions on population prevalence and inequalities of childhood obesity was investigated.
METHODS
METHODS
Predicted probabilities of obesity (using UK90 cut-offs) at age 6-7 years were estimated from logistic marginal structural models adjusting for observed calorie consumption at age 3 years (using food diaries) and confounding. A series of policy-relevant intervention scenarios were modeled to simulate reductions in energy intake (differing in effectiveness, the targeting mechanisms, and level of uptake).
RESULTS
RESULTS
At age 6-7 years, 8.3% of children were living with obesity, after accounting for observed energy intake and confounding. A universal intervention to lower median energy intake to the estimated average requirement (a 13% decrease), with an uptake of 75%, reduced obesity prevalence by 1% but relative and absolute inequalities remained broadly unchanged.
CONCLUSIONS
CONCLUSIONS
Simulated interventions substantially reduced population prevalence of obesity, which may be useful in informing policymakers.
Identifiants
pubmed: 34631133
doi: 10.1002/osp4.520
pii: OSP4520
pmc: PMC8488449
doi:
Types de publication
Journal Article
Langues
eng
Pagination
545-554Subventions
Organisme : Medical Research Council
ID : MC_UU_12011/4
Pays : United Kingdom
Informations de copyright
© 2021 The Authors. Obesity Science & Practice published by World Obesity and The Obesity Society and John Wiley & Sons Ltd.
Déclaration de conflit d'intérêts
The authors have no competing interests to declare.
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