Evidence map›Paper›PMID 34274811›Full record

ArticleSleep medicine2021

The Sleep Regularity Questionnaire: development and initial validation.

Joseph M Dzierzewski, Emily K Donovan, Sahar M Sabet

Registry-linked trialAbstract read
In one paragraph

Article in Sleep medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05237037 (Assessment of Sleep Quality in Patients Utilizing Cannabinoid Therapy), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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.

NCT05237037 unknown statusnot on this mapstarted 2022, after this paper: background citation

Assessment of Sleep Quality in Patients Utilizing Cannabinoid Therapy

TypeobservationalSponsorCerebra MedicalRan2022 to 2023Enrolled34ConditionsPoor Sleep Quality
3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. 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

3 authors.

Joseph M DzierzewskiDepartment of Psychology, Virginia Commonwealth University, 806 West Franklin St., PO Box 842018, Richmond, VA, 23284-2018, USA. Electronic address: dzierzewski@vcu.edu.
Emily K DonovanDepartment of Psychology, Virginia Commonwealth University, 806 West Franklin St., PO Box 842018, Richmond, VA, 23284-2018, USA.
Sahar M SabetDepartment of Psychology, Virginia Commonwealth University, 806 West Franklin St., PO Box 842018, Richmond, VA, 23284-2018, USA.

Funding

Cognitive and inflammatory consequences of sleep disorders in older adultsK23AG049955 · NIA · VIRGINIA COMMONWEALTH UNIVERSITY · PI DZIERZEWSKI, JOSEPH MICHAEL · 2016 to 2020
$794k
NIA NIH HHS K23 AG049955
6 · The paper itself

Abstract

BACKGROUND/

objectiveSleep is a critically important behavior which influences diverse aspects of health, functioning, and longevity. An increasing literature suggests the importance of sleep regularity, also referred to as sleep inconsistency, sleep variability, or intraindividual variability in sleep. Given there is no brief, subjective measure of sleep regularity, the purpose of this study was to develop the Sleep Regularity Questionnaire (SRQ) and to begin the process of examining its psychometric properties using a construct-validation approach. PARTICIPANTS/

methodsIn an online study of sleep and health, participants (n = 3249; M

resultsAn exploratory factor analysis followed by a confirmatory factor analysis revealed a two factor structure, represented by circadian regularity and sleep continuity regularity, with good model fit indices (X

conclusionsPreliminary psychometrics suggest that the SRQ is a valid and stable instrument for the assessment of sleep regularity in adults that is related to, but distinct from, other established sleep constructs. Future research will benefit from assessing the validity of the SRQ in various clinical samples and how it compares to measures of sleep regularity calculated from prospective daily assessments.

Indexed as

SleepAdultFactor Analysis, StatisticalFemaleHumansMaleProspective StudiesPsychometricsReproducibility of ResultsSurveys and QuestionnairesIntraindividual variabilityMeasurementPsychometricsSelf-reportSleep inconsistencySleep regularity

Identifiers

PMID34274811
PMCPMC8429093

What OpenQuestion holds

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Registered trials

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.