Latent classes of sleep deficiency and correlates among patients receiving methadone treatment: A longitudinal study

Key Points

• The study aims to identify different classes of sleep deficiency and their associations with psychological symptoms and pain in methadone-treated individuals.
• Conducted a longitudinal analysis of patients receiving methadone treatment.
• Assessed varieties of sleep deficiency compared to normal sleep.
• Evaluated psychological symptoms and pain interference through standardized measures.
• Identified several distinct classes of sleep deficiency among participants.
• Found that sleep deficiency correlates with more severe psychological symptoms.
• Noted significant pain interference with sleep, which may contribute to substance use risk.