Abstract:
Objective To study the relationship between sleep quality and mental health of manual workers in industrial and mining enterprises.
Methods The Pittsburgh Sleep Quality Index (PSQI) and the Symptom Checklist (SCL-90) were used to assess the sleep quality and mental health of 900 manual workers with jobs of mining, coal fired power, abrasive, welding, melting and processing through stratified and cluster sampling.
Results Poor sleepers were identified among 41.4% of the manual workers with a PSQI global score >7. There were significant differences in the sleep quality by seniority, marriage status, and education level (P< 0.05); but the manual workers did not show any gender-or income-specific differences (P>0.05). There were statistical differences in the mental health among the manual workers identified by gender, marriage status, seniority, and monthly income (P< 0.05). The SCL total scores and the SCL component scores were positively correlated with most PSQI global scores and PSQI component scores (P< 0.01).
Conclusion There is a high incidence rate of sleep disorders among the manual workers investigated. Their levels of mental health vary with demographic characteristics. Sleep quality is associated with mental health in this worker group.
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