Evidence map›Paper›PMID 36546351›Full record

Trial reportSleep2023

A randomized-controlled trial of a digital, small incentive-based intervention for working adults with short sleep.

Ju Lynn Ong, Stijn A A Massar, TeYang Lau, Ben K L Ng, Lit Fai Chan, Daphne Koek, Karen Cheong, Michael W L Chee

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Sleep, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04878380 (Evaluation of Goal-Based Interventions to Promote and Sustain Healthy Sleep Habits), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 20% 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.

NCT04878380 nacompletednot on this map

Evaluation of Goal-Based Interventions to Promote and Sustain Healthy Sleep Habits

TypeinterventionalSponsorNational University of SingaporeRan2021 to 2022Enrolled225ConditionsSleepArmsFitbit, Sleep education tips, Goal-setting
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
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

8 authors at 2 institutions in 1 country.

Ju Lynn OngCentre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0001-5115-4112
Stijn A A MassarCentre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0002-2166-0812
TeYang LauCentre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Ben K L NgHealth Promotion Board, Singapore.
Lit Fai ChanHealth Promotion Board, Singapore.
Daphne KoekHealth Promotion Board, Singapore.
Karen CheongHealth Promotion Board, Singapore.
Michael W L CheeCentre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0002-6087-0548
Health Promotion Board · SGNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesWe evaluated the efficacy of a digitally delivered, small and scalable incentive-based intervention program on sleep and wellbeing in short-sleeping, working adults.

methodsA 22-week, parallel-group, randomized-controlled trial was conducted on 21-40 y participants gifted with FitbitTM devices to measure sleep for ≥2 years, as part of a broader healthy lifestyle study. About 225 short sleepers (141 males; average time-in-bed, TIB < 7h) were randomly assigned in a 2:1 ratio to Goal-Setting or Control groups. The Goal-Setting group received health vouchers (~USD 0.24) for meeting each sleep goal (i.e. increasing weeknight TIB by 30 min/sleeping before midnight).The study spanned three phases: (1) 2-week Baseline, (2) 10-week Intervention, and (3) 10-week Follow-Up. Wellbeing questionnaires were administered on Weeks 1-2, 11-12, and 21-22.

resultsBaseline weeknight TIB (mean ± SD) was 387 ± 43 min (Goal-Setting) and 399 ± 44 min (Control), while bedtime was 00:53 ± 01:13 (Goal-Setting), and 00:38 ± 00:56 (Control). No difference in sleep outcomes was observed at study endpoints, but exploratory week-by-week analysis showed that on Weeks 3-5, TIB in the Goal-Setting group increased (9-18 min; ps < 0.05) while on Week 5, bedtimes shifted earlier (15 min; p < 0.01) compared to Baseline. Morning sleepiness was reduced in the Goal-Setting group (mean[SEM] = -3.17(1.53); p = 0.04) compared to Baseline, although between-group differences were not significant (p = 0.62). Main barriers to sleeping longer were work hours (35%), followed by leisure activities (23%) and family commitments (22%).

conclusionOur program resulted in encouraging subjective sleep improvements and short-term sleep extension, but sustained transformation of sleep will probably require structural measures to overcome significant obstacles to sleep.

trial registrationClinicalTrials.gov Identifier: NCT04878380 (hiSG Sleep Health Study (hiSG-SHS); https://clinicaltrials.gov/ct2/show/NCT04878380).

Indexed as

MotivationSleep Wake DisordersAdultCognitionHumansMalePolysomnographySleepincentivesmHealthobjective sleep monitoringpersonalized sleep interventionshort sleep

Identifiers

PMID36546351
PMCPMC10171635
OpenAlexW4312095232

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.