Evidence map›Paper›PMID 32949837›Full record

ArticleAddictive behaviors2021

Cannabis use and sleep: Expectations, outcomes, and the role of age.

Evan A Winiger, Leah N Hitchcock, Angela D Bryan, L Cinnamon Bidwell

Open access · greenAbstract read
In one paragraph

Article in Addictive behaviors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 3% of its field
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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Cannabis use as a moderator of cognitive behavioral therapy for insomnia.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
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  10. Dynamic associations between cannabis use and sleep in adolescents and young adults during a cannabis intervention trial.Journal of research on adolescence : the official journal of the Society for Research on Adolescence · 2025
    Article
  11. Perceptions of cannabis among adults aged 60 years and older in Canada: a qualitative study.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2025
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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

4 authors at 2 institutions in 1 country.

Evan A WinigerInstitute for Behavioral Genetics, University of Colorado, Boulder. East Campus, 1480 30(th) Street, Boulder, CO 80309, United States; Department of Psychology and Neuroscience, University of Colorado, Boulder, Muenzinger Psychology Building, 1905 Colorado Ave, Boulder, CO 80309, United States. Electronic address: Evan.Winiger-1@colorado.edu.
Leah N HitchcockInstitute of Cognitive Science, University of Colorado, Boulder.Center for Innovation and Creativity, 1777 E Exposition Drive, Boulder, CO 80301, United States.
Angela D BryanDepartment of Psychology and Neuroscience, University of Colorado, Boulder, Muenzinger Psychology Building, 1905 Colorado Ave, Boulder, CO 80309, United States; Institute of Cognitive Science, University of Colorado, Boulder.Center for Innovation and Creativity, 1777 E Exposition Drive, Boulder, CO 80301, United States.
L Cinnamon BidwellDepartment of Psychology and Neuroscience, University of Colorado, Boulder, Muenzinger Psychology Building, 1905 Colorado Ave, Boulder, CO 80309, United States; Institute of Cognitive Science, University of Colorado, Boulder.Center for Innovation and Creativity, 1777 E Exposition Drive, Boulder, CO 80301, United States.
University of Colorado Boulder · USCenter for Innovation · US

Funding

Novel approaches to understanding the role of cannabinoids and inflammation in anxietyR01DA044131 · NIDA · UNIVERSITY OF COLORADO · PI BIDWELL, L. CINNAMON · 2017 to 2021
$2.8M
NIDA NIH HHS R01 DA044131
6 · The paper itself

Abstract

STUDY

objectivesDetermine relationship between cannabis use with 1) expectations of cannabis being a sleep aid, 2) subjective sleep outcomes, and 3) the influence of age on these relationships.

methodsIn 152 moderate cannabis users with a wide age range (67% female, mean age = 31.45, SD = 12.96, age range = 21-70; mean days of cannabis use in prior two weeks = 5.54, SD = 5.25) we examined the influence of cannabis use history and behaviors on expectations of cannabis being a sleep aid and sleep outcomes via the Pittsburgh Sleep Quality Index (PSQI). Moderation analysis examined the role of age in the relationship between cannabis use and sleep outcomes.

resultsEndorsing current cannabis use and more days of cannabis use were associated with increased expectations that cannabis use improves sleep (all β > 0.03, p < 0.04). Frequency of recent use and reported average THC or CBD concentration were largely not associated with sleep outcomes. However, endorsing current cannabis use was associated with worse subjective sleep quality (β = 1.34, p = 0.02) and increased frequency of consuming edibles was associated with worse subjective sleep efficiency (β = 0.03, p = 0.04), lower sleep duration (β = 0.03, p = 0.01), and higher global PSQI scores (worse overall sleep) (β = 0.10, p = 0.01). Additionally, age had a moderating influence on the relationship between increased self-reported concentration of CBD and both better sleep duration and sleep quality (both p < 0.03). While the main effects of cannabis use on sleep outcomes did not survive multiple comparisons correction test (all p adj > 0.34), the adjusted p values for the main effects of cannabis behaviors/history on expectations of cannabis as a sleep aid (p adj = 0.07-0.09) and the main effects of CBD concentration on sleep duration (p adj = 0.08), as well as the interaction terms of CBD and age for that model (p adj = 0.07), were trending.

conclusionCannabis users have increased expectations of cannabis being a sleep aid, but few associations existed between cannabis use and sleep outcomes. The two exceptions were endorsing any cannabis use and frequency of edible use. Additionally, age may be an important moderator of the potential positive influence CBD concentration can have on sleep.

Indexed as

CannabisHallucinogensSleepAdultAgedDronabinolFemaleHumansMaleMiddle AgedMotivationYoung AdultDronabinolHallucinogensAgeCannabisCBDSleepTHC

Identifiers

PMID32949837
PMCPMC7572650
OpenAlexW3083748733

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.