The mental health and depression of rural-to-urban migrant workers compared to non-migrant workers in Shanghai: a cross-sectional study

Migrant workers in Shanghai had a 15.3% prevalence of depression compared to 12.0% among non-migrant workers.

• Participants over 45 years of age showed a notable prevalence of poor mental health at 26.9%.
• Low job satisfaction is associated with a 2.86-fold increased likelihood of depression.
• Unhealthy organizational environments are linked to a 1.42-fold increase in depression risk.
• Self-rated poor physical health is associated with a 1.89-fold increased likelihood of depression.
• Long working hours are correlated with a 1.48-fold increase in depression among workers.
• For those over 45 years, low job satisfaction and unhealthy organizations are linked to 2.92-fold and 1.80-fold increased risks of poor mental health, respectively.

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