Table 2 Associations between BRI levels and mental disorders.

From: Body roundness index and mental health in middle-aged and elderly adults: a prospective cohort study

Characteristic

Model 1 a

Model 2

Model 3

HR (95% CI)

P value

HR (95% CI)

P value

HR (95% CI)

P value

Low BRI

Reference

Reference

Reference

Overall mental disorders

Moderate BRI

1.16 (1.14, 1.17)

< 0.001

1.10 (1.08, 1.12)

< 0.001

1.05 (1.03, 1.08)

< 0.001

High BRI

1.43 (1.40, 1.45)

< 0.001

1.29 (1.27, 1.31)

< 0.001

1.12 (1.09, 1.15)

< 0.001

Substance use disorder

Moderate BRI

1.35 (1.29, 1.41)

< 0.001

1.12 (1.07, 1.17)

< 0.001

1.00 (0.95, 1.05)

0.939

High BRI

1.82 (1.75, 1.90)

< 0.001

1.37 (1.31, 1.43)

< 0.001

1.05 (1.01, 1.11)

0.034

Depressive disorder

Moderate BRI

1.14 (1.08, 1.20)

< 0.001

1.24 (1.17, 1.31)

< 0.001

1.13 (1.04, 1.22)

0.003

High BRI

1.66 (1.58, 1.74)

< 0.001

1.68 (1.59, 1.77)

< 0.001

1.34 (1.24, 1.45)

< 0.001

Anxiety disorder

Moderate BRI

1.04 (0.98, 1.09)

0.166

1.15 (1.08, 1.21)

< 0.001

1.09 (1.03, 1.15)

0.005

High BRI

1.30 (1.24, 1.37)

< 0.001

1.35 (1.28, 1.43)

< 0.001

1.18 (1.11, 1.26)

< 0.001

  1. BRI, body roundness index; HR, hazard ratio; CI, confidence interval. a Tertiary model strategies were adopted in our study. Model 1 served as the unadjusted baseline. Model 2 adjusted for core demographic and socioeconomic factors, including age, sex, IMD, education level, and income level. Model 3 further adjusted for healthy lifestyle factors, prevalent diseases, blood pressure measures, metabolic biomarkers, and medication use.