Children who have suffered maltreatment are 36% more likely to be obese in adulthood compared to non-maltreated children, according to a new study by King's College London. The authors estimate that the prevention or effective treatment of 7 cases of child maltreatment could avoid 1 case of adult obesity.
The findings come from the combined analysis of data from 190,285 individuals from 41 studies worldwide, published this week in Molecular Psychiatry.
Severe childhood maltreatment (physical, sexual or emotional abuse or neglect) affects approximately 1 in 5 children (under 18) in the UK. In addition to the long-term mental health consequences of maltreatment, there is increasing evidence that child maltreatment may affect physical health.
Dr Andrea Danese, child and adolescent psychiatrist from King's College London's Institute of Psychiatry and lead author of the study says: "We found that being maltreated as a child significantly increased the risk of obesity in adult life. Prevention of child maltreatment remains paramount and our findings highlight the serious long-term health effects of these experiences."
Although experimental studies in animal models have previously suggested that early life stress is associated with an increased risk of obesity, evidence from population studies has been inconsistent. This new study comprehensively assessed the evidence from all existing population studies to explore the potential sources of inconsistency.
In their meta-analysis, the authors were able to rule out specific factors which might explain the link they found that childhood maltreatment was associated with adult obesity independently of the measures or definitions used for maltreatment or obesity, childhood or adult socio-economic status, current smoking, alcohol intake, or physical activity. Additionally, childhood maltreatment was not linked to obesity in children and adolescents, making it unlikely that t
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King's College London