Feasibility and Acceptability of Cognitive Behavioral Therapy for Chronic Insomnia in a Primary Care

This pilot-feasibility study of a cluster parallel randomized design comparing CBT-i against usual care (UC) was performed at two primary health care centers in Majorca, Spain. Patients were included if they were 18 to 65 years-old; had diagnoses of chronic insomnia according to the Insomnia Severity Index (ISI more than 8) and had insomnia longer than 3 months; and did or did not use a hypnotic medication. 25 GPs and nurses and 32 patients were randomly allocated to two groups: The outcome of the trial was improving the quality of sleep. Other primary outcomes on feasibility and applicability of the intervention were collected through nominal groups. Description of usual care was described through previous studies. Moreover we assessed recruitment process, compliance with the intervention sessions, and patient's retention.