CoChat
Sign Up
Cited by 65Physical Activity and HealthSleep and related disordersObesity, Physical Activity, Diet

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Impact of sleep duration, physical activity, and screen time on health-related quality of life in children and adolescents

Open access
Wong, Carlos K. H., Wong, Rosa S., Cheung, Jason P. Y., Tung, Keith T. S., Yam, Jason C. S., Rich, Michael, Fu, King-Wa, Cheung, Prudence W. H., Luo, Nan, Au, Chi Ho, Zhang, Ada, Wong, Wilfred H. S., Fan, Jiang, Lam, Cindy L. K., Ip, Patrick·2021·Health and Quality of Life Outcomes
DOI 10.1186/s12955-021-01776-yPMC PMC8117552
Open this paper in CoChat — free accountOpen PDF

Abstract

BACKGROUND: Existing studies on health-related quality of life (HRQoL) mainly covered single growth stages of childhood or adolescence and did not report on the trends in the relationships of HRQoL with sleep duration, physical activity, and screen time. This study aimed to establish the population norm of HRQoL in children and adolescents aged 6-17 years and examine the associations of screen time, sleep duration, and physical activity with HRQoL in this population. METHODS: We conducted a large-scale cross-sectional population-based survey study of Hong Kong children and adolescents aged 6 to 17 years. A representative sample of students were interviewed to assess their HRQoL using PedsQL and EQ-5D-Y-5L. Multivariable homoscedastic Tobit regression with linear form or restricted cubic spline of predictors was used to analyze the associations between screen time, sleep duration, and HRQoL. Multiple imputation by chained equations was performed to deal with missing data. RESULTS: A total of 7555 respondents (mean age 11.5, SD 3.2; 55.1% female) were sampled. Their EQ VAS scores, PedsQL physical summary scores, and psychosocial summary scores were positively correlated with sleep duration and moderate/vigorous activity but was negatively correlated with screen time. CONCLUSIONS: Children and adolescents who had longer exposure to screen, shorter sleep duration, and lower physical activity levels appeared to have poorer HRQoL as assessed by PedsQL and EQ-5D-Y-5L. Advice and guidance on screen time allocation for children and adolescents should be provided at the levels of school, community, and family.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1186/s12955-021-01776-y

Cites

25 of 25 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • All composite reliability (CR) values in this study were greater than 0.6.

    “All of the CRs in this study were greater than 0.6 (42–44).”

    From Relationship of screen time with anxiety, depression, and sleep quality among adolescents: a cross-sectional study (2024) · cites this paper as [44]

    The Methods > Statistical analysis and Results > EQ-5D-Y-5L passages report health-related quality-of-life measures and analyses, not composite reliability values. Searches for composite reliability, CR, and a 0.6 reliability threshold found no passage in our copy addressing the claim. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

  • Convergent validity was established because all CR values were greater than 0.6.

    “Convergent validity was established if the CR value was greater than 0.6. All of the CRs in this study were greater than 0.6 (42–44).”

    From Relationship of screen time with anxiety, depression, and sleep quality among adolescents: a cross-sectional study (2024) · cites this paper as [44]

    The Methods > Statistical analysis section describes HRQoL scores and regression models, not convergent-validity testing. Searches for “convergent validity,” “CR,” and the 0.6 threshold found no passage establishing that criterion or reporting CR values in this paper. No page numbers are available in our copy. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Metadata

Authors
Wong, C. K. H., Wong, R. S., Cheung, J. P. Y., Tung, K. T. S., Yam, J. C. S., Rich, M., Fu, K.-W., Cheung, P. W. H., Luo, N., Au, C. H., Zhang, A., Wong, W. H. S., Fan, J., Lam, C. L. K., & Ip, P.
Affiliations
  • University of Hong Kong (HK)
  • Queen Mary Hospital (CN)
  • Chinese University of Hong Kong (HK)
  • National University of Singapore (SG)
  • Shanghai Jiao Tong University (CN)
Corresponding author
Ip, Patrick
ORCID
Venue
Health and Quality of Life Outcomes
Publisher
Springer Science and Business Media LLC
Published
2021-05-12
Volume
19
Issue
1
Pages
145-145
ISSN
1477-7525 (ISSN-L)
DOI
10.1186/s12955-021-01776-y
PMC
PMC8117552
OpenAlex
W3163204491
Cited by
62
References
25
Citations by year
2026: 14 · 2025: 18 · 2024: 9 · 2023: 12 · 2022: 8 · 2021: 1
FWCI
4.71
Type
journal article
Language
en
Open access
Licence
Locations
  • Health and Quality of Life Outcomes (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • National University of Singapore (submittedVersion, cc-by)
Funders
Research Grants Council, University Grants Committee (17119518)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Physical Activity and Health
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Keywords
health-related quality of life, sleep duration, physical activity, screen time, children, adolescents, PedsQL, EQ-5D-Y-5L, moderate-to-vigorous physical activity, population norms, Hong Kong
MeSH terms
Screen Time, Adolescent, Child, Cross-Sectional Studies, Female, Hong Kong, Humans, Male, Quality of Life, Regression Analysis, Sleep, Students, Exercise

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review