Trial reportScandinavian journal of primary health care2026
A randomized controlled trial comparing sleep hygiene advice with a self-help book focusing on cognitive behavioral therapy for insomnia: a study among patients with prescribed hypnotics from the GP.
Trial report in Scandinavian journal of primary health care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- The effect of a self-help book for shift work disorder - a randomized controlled trial.Frontiers in psychiatry · 2026Trial
- Preventing and Treating Insomnia Symptoms in Midlife and Older Adults (ASLEEP): Protocol for a Randomized Controlled Trial Using the PROTECT Norge Infrastructure.JMIR research protocols · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChronic insomnia is commonly treated with hypnotics. However, the treatment of choice is cognitive behavioral therapy for insomnia (CBTi). We investigated whether a self-help book based on CBTi is effective in reducing hypnotic use and improving sleep.
methodsPatients who had received a prescription from their GP for z-hypnotics (zopiclone or zolpidem) in the last 6 months were recruited through PraksisNett, an infrastructure within General Practice, for a randomized controlled trial comparing written materials in form of a sheet of sleep hygiene advice and a self-help book. The participants completed an online questionnaire about hypnotic use, insomnia symptoms, sleep duration, anxiety and depression before the intervention and at 4-5 months follow-up.
resultsIn total, 125 patients (response rate 72.7%) completed the follow-up questionnaire. Interaction analyses indicated effects favoring the self-help book for hypnotic use and anxiety. The book reduced the proportion using hypnotics daily from 25.4% to 18.6%, while the proportion increased from 21.2% to 22.7% in the sleep hygiene group. The proportion reporting anxiety was reduced from 32.1% to 23.2% in the self-help book group, while it increased from 27.0% to 31.7% in the sleep hygiene group. Insomnia symptoms were lowered in both intervention groups, whereas depression remained unchanged.
conclusionThis study indicated that the self-help book was an effective low-threshold treatment option that seems to reduce hypnotic use and at the same time improve sleep and mental health. The patients who received sleep hygiene advice also reported some positive effects, but daily hypnotic use and anxiety increased.
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Registered trials
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