Insomnia as a risk factor for the development of depression and anxiety in primary care: a matched population-based cohort study

Key Points

• To examine the relationship between insomnia and the development of depression and anxiety in primary care settings.
• Matched population-based cohort study design
• Comparison of patients with insomnia to healthy controls
• Analysis of subsequent rates of depression and anxiety diagnoses
• Patients with insomnia had a significantly higher incidence of depression and anxiety compared to controls
• Identifies insomnia as a potential early detection marker for mental health issues