Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden

Abstract Background Anxiety and depression are more common in children with obesity than in children of normal weight, but it is unclear whether this association is independent of other known risk factors. Interpretation of results from previous studies is hampered by methodological limitations, inc...

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Main Authors: Louise Lindberg, Emilia Hagman, Pernilla Danielsson, Claude Marcus, Martina Persson
Format: Article
Language:English
Published: BMC 2020-03-01
Series:BMC Medicine
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12916-020-1498-z
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author Louise Lindberg
Emilia Hagman
Pernilla Danielsson
Claude Marcus
Martina Persson
author_facet Louise Lindberg
Emilia Hagman
Pernilla Danielsson
Claude Marcus
Martina Persson
author_sort Louise Lindberg
collection DOAJ
description Abstract Background Anxiety and depression are more common in children with obesity than in children of normal weight, but it is unclear whether this association is independent of other known risk factors. Interpretation of results from previous studies is hampered by methodological limitations, including self-reported assessment of anxiety, depression, and anthropometry. The aim of this study was to investigate whether obesity increases the risk of anxiety or depression independently of other risk factors in a large cohort of children and adolescents, using robust measures with regard to exposure and outcome. Methods Children aged 6–17 years in the Swedish Childhood Obesity Treatment Register (BORIS, 2005–2015) were included (n = 12,507) and compared with a matched group (sex, year of birth, and area of residence) from the general population (n = 60,063). The main outcome was a diagnosis of anxiety or depression identified through ICD codes or dispensed prescribed medication within 3 years after the end of obesity treatment. Hazard ratios (HRs) with 95% confidence intervals (CIs) from Cox proportional models were adjusted for several known confounders. Results Obesity remained a significant risk factor for anxiety and depression in children and adolescents after adjusting for Nordic background, neuropsychiatric disorders, family history of anxiety/depression, and socioeconomic status. Girls in the obesity cohort had a 43% higher risk of anxiety and depression compared to girls in the general population (adjusted HR 1.43, 95% CI 1.31–1.57; p < 0.0001). The risk in boys with obesity was similar (adjusted HR 1.33, 95% CI 1.20–1.48; p < 0.0001). In sensitivity analyses, excluding subjects with neuropsychiatric disorders and a family history of anxiety/depression, the estimated risks in individuals with obesity were even higher compared with results from the main analyses (adjusted HR [95% CI]: girls = 1.56 [1.31–1.87], boys = 2.04 [1.64–2.54]). Conclusions Results from this study support the hypothesis that obesity per se is associated with risk of both anxiety and depression in children and adolescents.
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spelling doaj.art-4b579262e66f4667a33a3c6bb7aafec52022-12-21T20:38:12ZengBMCBMC Medicine1741-70152020-03-011811910.1186/s12916-020-1498-zAnxiety and depression in children and adolescents with obesity: a nationwide study in SwedenLouise Lindberg0Emilia Hagman1Pernilla Danielsson2Claude Marcus3Martina Persson4Division of Pediatrics, Department of Clinical Science, Intervention and Technology, Karolinska InstitutetDivision of Pediatrics, Department of Clinical Science, Intervention and Technology, Karolinska InstitutetDivision of Pediatrics, Department of Clinical Science, Intervention and Technology, Karolinska InstitutetDivision of Pediatrics, Department of Clinical Science, Intervention and Technology, Karolinska InstitutetDepartment of Medicine, Solna, Clinical Epidemiology Unit, Karolinska InstitutetAbstract Background Anxiety and depression are more common in children with obesity than in children of normal weight, but it is unclear whether this association is independent of other known risk factors. Interpretation of results from previous studies is hampered by methodological limitations, including self-reported assessment of anxiety, depression, and anthropometry. The aim of this study was to investigate whether obesity increases the risk of anxiety or depression independently of other risk factors in a large cohort of children and adolescents, using robust measures with regard to exposure and outcome. Methods Children aged 6–17 years in the Swedish Childhood Obesity Treatment Register (BORIS, 2005–2015) were included (n = 12,507) and compared with a matched group (sex, year of birth, and area of residence) from the general population (n = 60,063). The main outcome was a diagnosis of anxiety or depression identified through ICD codes or dispensed prescribed medication within 3 years after the end of obesity treatment. Hazard ratios (HRs) with 95% confidence intervals (CIs) from Cox proportional models were adjusted for several known confounders. Results Obesity remained a significant risk factor for anxiety and depression in children and adolescents after adjusting for Nordic background, neuropsychiatric disorders, family history of anxiety/depression, and socioeconomic status. Girls in the obesity cohort had a 43% higher risk of anxiety and depression compared to girls in the general population (adjusted HR 1.43, 95% CI 1.31–1.57; p < 0.0001). The risk in boys with obesity was similar (adjusted HR 1.33, 95% CI 1.20–1.48; p < 0.0001). In sensitivity analyses, excluding subjects with neuropsychiatric disorders and a family history of anxiety/depression, the estimated risks in individuals with obesity were even higher compared with results from the main analyses (adjusted HR [95% CI]: girls = 1.56 [1.31–1.87], boys = 2.04 [1.64–2.54]). Conclusions Results from this study support the hypothesis that obesity per se is associated with risk of both anxiety and depression in children and adolescents.http://link.springer.com/article/10.1186/s12916-020-1498-zObesityAnxietyDepressionChildrenAdolescentsEpidemiology
spellingShingle Louise Lindberg
Emilia Hagman
Pernilla Danielsson
Claude Marcus
Martina Persson
Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
BMC Medicine
Obesity
Anxiety
Depression
Children
Adolescents
Epidemiology
title Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
title_full Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
title_fullStr Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
title_full_unstemmed Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
title_short Anxiety and depression in children and adolescents with obesity: a nationwide study in Sweden
title_sort anxiety and depression in children and adolescents with obesity a nationwide study in sweden
topic Obesity
Anxiety
Depression
Children
Adolescents
Epidemiology
url http://link.springer.com/article/10.1186/s12916-020-1498-z
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