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U-shaped link detected between adolescent BMI and mental health

U-shaped link detected between adolescent BMI and mental health

There is a U-shaped association between adolescent body mass index (BMI) and mental health, according to a study published online May 15 in JAMA Psychiatry.

Shanquan Chen, Ph.D., from the London School of Hygiene & Tropical Medicine, and colleagues estimated the association between BMI and mental health and examined changes from 2002 to 2018 in a repeated multicountry cross-sectional study. Data were obtained from the Health Behavior in School-aged Children survey in Europe and North America, including a study population of 1,036,869 adolescents (527,585 girls) aged 11 to 15 years.

The researchers identified a U-shaped association between BMI and . Compared with those with healthy weight, adolescents with low body mass, overweight, or obesity had increased (unstandardized β, 0.14, 0.27, and 0.62, respectively), while fewer symptoms were seen for adolescents with underweight (β, −0.18).

Across different years, sex, and grade, the association was observed. Psychosomatic concerns increased significantly in 2006, 2010, 2014, and 2018 compared with 2002 (unstandardized β, 0.19, 0.14, 0.48, and 0.82, respectively).

Significantly higher psychosomatic concerns were seen for girls than boys (unstandardized β, 2.27). Psychosomatic concerns increased significantly in middle and versus primary school (unstandardized β, 1.15 and 2.12, respectively).

"These insights can inform public health and school programs, emphasizing correcting body image misconceptions, encouraging healthy weight, and creating supportive peer environments," the authors write.

More information: Shanquan Chen et al, Dose-Dependent Association Between Body Mass Index and Mental Health and Changes Over Time, JAMA Psychiatry (2024). DOI: 10.1001/jamapsychiatry.2024.0921

Journal information: JAMA Psychiatry

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Citation: U-shaped link detected between adolescent BMI and mental health (2024, May 20) retrieved 15 July 2024 from https://medicalxpress.com/news/2024-05-link-adolescent-bmi-mental-health.html
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