Evidence map›Paper›PMID 41425191›Full record

ArticleFrontiers in sleep2025

Development of a scale for measuring orthosomnia: the Bergen Orthosomnia Scale (BOS).

Bodil V Guldbrandsen, Kelly Baron, Øystein Vedaa, Bjørn Bjorvatn, Ståle Pallesen

Abstract read
In one paragraph

Article in Frontiers in sleep, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Bodil V GuldbrandsenDepartment of Psychosocial Science, University of Bergen, Bergen, Norway.
Kelly BaronDepartment of Family and Preventive Medicine, University of Utah, Salt Lake City, UT, United States.
Øystein VedaaDepartment of Psychosocial Science, University of Bergen, Bergen, Norway.
Bjørn BjorvatnDepartment of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Ståle PallesenDepartment of Psychosocial Science, University of Bergen, Bergen, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: This study aimed to extend the knowledge about orthosomnia, that is, excessive preoccupation with sleep, by developing a scale for its assessment. Methods: In Study 1, an initial item pool was presented to 34 sleep experts for assessment using the Delphi method. In Study 2, relevant items were administered to 994 survey respondents (mean age = 42 years, Results: The two-factor model demonstrated acceptable fit (root mean square of approximation = 0.07, comparative fit index = 0.96, Tucker-Lewis Index = 0.95) with Cronbach's alphas of 0.87 and 0.88, and 3-week test-retest reliability of 0.74 and 0.82, respectively. Both orthosomnia factors correlated positively with sleep effort, dysfunctional beliefs and attitudes about sleep, narcissism, perfectionism, OCD, and health anxiety. The interference factor correlated positively with insomnia, neuroticism, psychopathy, and Machiavellianism and negatively with conscientiousness. The rigidity factor correlated positively with conscientiousness. Conclusion: The new scale for assessing orthosomnia possesses good psychometric properties and provides clinicians and researchers with an instrument for further investigating this new sleep construct.

Indexed as

factor analysisinterferencemeasurement invarianceorthosomniaperfect sleeppsychometricsrigidityscale

Identifiers

PMID41425191
PMCPMC12713983

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.