Evidence map›Paper›PMID 41235191›Full record

ArticleFrontiers in public health2025

Sleep patterns among middle school students: a three-year longitudinal study in the context of China's "Double Reduction" policy.

Jiansong Dai, Yan Huang, Yifan Zhao, Kai Xu, Zhongke Gu, Gangrui Chen

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In one paragraph

Article in Frontiers in public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

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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

6 authors.

Jiansong Dai *Department of Sports and Health Sciences, Nanjing Sport Institute, Nanjing, China.
Yan Huang *Department of Graduate, Nanjing Sport Institute, Nanjing, China.
Yifan ZhaoDepartment of Graduate, Nanjing Sport Institute, Nanjing, China.
Kai XuDepartment of Sports and Health Sciences, Nanjing Sport Institute, Nanjing, China.
Zhongke GuDepartment of Sports and Health Sciences, Nanjing Sport Institute, Nanjing, China.
Gangrui ChenSports Science Research Institute, Nanjing Sport Institute, Nanjing, Jiangsu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: This longitudinal study aims to describe the sleep pattern trajectories among Chinese middle school students over a three-year period. Methods: From December 2021 to December 2023, 82 middle school students were monitored for 2 weeks per academic year for a period of 3 years using the Huawei Band 6 wearable devices, and sleep parameters were collected at each stage and statistically analyzed. Results: For 82 middle school students, their sleep onset time gradually delayed over the years, leading to a yearly decrease in night sleep duration (Grade 7: 452.3 ± 32.4 min; Grade 8: 432.9 ± 38.6 min; Grade 9: 420.4 ± 37.9 min, Conclusion: This study indicates that middle school students experience a gradual decrease in sleep duration over 3 years. Schools are advised to delay morning start times and enhance sleep hygiene education for students and parents as part of measures to address insufficient sleep among students.

Indexed as

SleepSleep DeprivationStudentsAdolescentChildChinaFemaleHumansLongitudinal StudiesMaleSchoolsTime Factorsadolescent sleep“Double Reduction” policysleep deprivationsleep patternwearable device

Identifiers

PMID41235191
PMCPMC12605037

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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.