Comorbid anxiety and depression, depression, and anxiety in comparison in multi-ethnic community of west China: prevalence, metabolic profile, and related factors

•The prevalence of comorbid anxiety and depression symptomology (CAD), pure anxiety, and pure depression were 9.0%, 12.8% and 10.6% in the participants of 50 years and older.•Yi, Qiang and Uyghur ethnic groups have a higher prevalence of mental disease compared with Han.•Vitamin D levels were lower...

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