CBT-I is a primary treatment for insomnia, but access to trained therapists is limited. ICBT-I has the advantage of ready access from any location and thus lends itself to a population-based approach to treatment. Using this approach, patients with insomnia or at high risk are informed of and provided access to services in a proactive way: delays for appointments with busy primary care providers are avoided and additional work load is alleviated. We under took this study to implement a population health program for insomnia using ICBT-I and targeting known patients with insomnia as well as high-risk patients. Our study design was pragmatic with no disruption in the usual-care arm and minimal differences between the intervention arm and any future implementation (ie, a study information sheet).
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