system
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human
Delete unnecessary information to make the text more succinct and coherent.
Relevant data:
'The primary aim of the study was to investigate the impact of socioeconomic factors on mental health in middle-aged men living in urban areas, with a focus on their income level, educational attainment, and occupation status.'
gpt
The study investigated the impact of socioeconomic factors on mental health in middle-aged men living in urban areas.