Predictors of treatment attendance and adherence to treatment recommendations among individuals receiving Cognitive Behavioral Therapy for Insomnia.

Insomnia disorders affect up to 10% of adults and are associated with other health problems and poor quality of life. Cognitive Behavioral Therapy for Insomnia (CBT-I) is an effective treatment; however, its effectiveness is hindered by poor attendance and adherence to treatment recommendations. The present study sought to identify predictors of attendance and adherence in CBT-I. Participants were 108 adults with insomnia disorder. Participants were primarily female (71.3%), middle aged (mean age = 50.5), and Caucasian (92.6%). Demographic variables, physical health problems, Beck Anxiety Inventory, Center for Epidemiologic Studies Depression-Revised scale, and Insomnia Severity Index were used to predict attending three or more sessions and adherence to consistent bedtime and waketime. Higher age was associated with better attendance and less deviation in bed and wake times. Anxiety and depression symptoms were associated with less attendance, and depression was also associated with more deviation in waketimes. To promote better attendance and adherence in treatment, depression or anxiety symptoms should be addressed before or during CBT-I. Identifying and tailoring CBT-I treatments toward the needs of different age groups may also improve attendance and adherence.