Relation between body mass index and depression: a structural equation modeling approach
2007

The Link Between Body Mass Index and Depression

Sample size: 12376 publication 10 minutes Evidence: moderate

Author Information

Author(s): Dragan Alina, Akhtar-Danesh Noori

Primary Institution: McMaster University

Hypothesis

Is there a relationship between body mass index (BMI) and depression?

Conclusion

The study found that higher BMI is associated with more severe depression, but this relationship varies by gender.

Supporting Evidence

  • Higher BMI is linked to more severe depression.
  • The relationship between BMI and depression is different for males and females.
  • More physical activity is associated with lower BMI.
  • Stress management affects depression levels.

Takeaway

If someone is heavier, they might feel sadder, but boys and girls can feel differently about it.

Methodology

The study used structural equation modeling (SEM) to analyze data from the Canadian Community Health Survey.

Potential Biases

The use of self-reported data may introduce bias.

Limitations

The study is cross-sectional, so it cannot determine causality, and there were missing data for some variables.

Participant Demographics

Participants were from Ontario, Canada, with a mix of genders.

Statistical Information

P-Value

0.015

Confidence Interval

(0.040, 0.054)

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2288-7-17

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