Longitudinal relationship between weight-adjusted waist index and depressive symptoms in middle-aged and older Chinese adults: A prospective cohort study.
J Affect Disord
; 2024 Jul 16.
Article
en En
| MEDLINE
| ID: mdl-39025446
ABSTRACT
BACKGROUND:
The association between obesity and depressive symptoms remains controversial. The Weight-adjusted waist index (WWI) shows advantages in assessing central obesity. This study aimed to investigate the longitudinal relationship between WWI and depressive symptoms.METHOD:
This prospective cohort study utilized data from the China Health and Retirement Longitudinal Study (CHARLS) spanning 2011-2020. Depressive symptoms were assessed using the 10-item Center for Epidemiological Studies Depressive Symptoms Scale (CESD-10) scores. Linear mixed models were used to examine longitudinal associations.RESULTS:
A total of 6835 participants over the age of 45 were included. WWI was positively associated with CESD-10 scores (ß per 1 SD increaseâ¯=â¯0.052SD; 95%CI 0.021 to 0.083SD) and was linked to a faster increase in CESD-10 scores over time (ßâ¯=â¯0.095SD/y; 95%CI 0.090 to 0.100 SD/y). Conversely, BMI was negatively associated with CESD-10 scores (ß per 1 SD increaseâ¯=â¯-0.067SD; 95%CI -0.097 to -0.038SD). However, the negative association between BMI and CESD-10 scores weakened over time (ß per 1 SD increaseâ¯=â¯0.008SD/y; 95%CI 0.003 to 0.013 SD/y). Nonlinear associations were detected between both WWI and BMI with CESD-10 scores.LIMITATIONS:
Self-reported depressive symptoms assessments may have introduced information bias. The observational design limits ruling out unobserved confounding factors.CONCLUSIONS:
Our findings highlight the association between WWI and the long-term progression of depressive symptoms in middle-aged and older adults. WWI may enhance our understanding of the link between obesity and depressive symptoms and could be superior to BMI in predicting depressive symptom progression.
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Base de datos:
MEDLINE
Idioma:
En
Revista:
J Affect Disord
Año:
2024
Tipo del documento:
Article