Evidence map›Paper›PMID 28324186›Full record

ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2017

Association of evening smartphone use with cardiac autonomic nervous activity after awakening in adolescents living in high school dormitories.

Yoko Nose, Rina Fujinaga, Maki Suzuki, Ikuyo Hayashi, Toshio Moritani, Kazuhiko Kotani, Narumi Nagai

Abstract read
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Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Overview of studies linking time spent on smartphones with blood pressure.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
  8. Cruciate ligament healing and injury prevention in the age of regenerative medicine and technostress: homeostasis revisited.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Review
  9. Workaholism, Intensive Smartphone Use, and the Sleep-Wake Cycle: A Multiple Mediation Analysis.International journal of environmental research and public health · 2019
    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

7 authors at 3 institutions in 1 country.

Yoko NoseGraduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji-city, Hyogo, 6700092, Japan.
Rina FujinagaSchool of Human Science and Environment, University of Hyogo, Hyogo, 6700092, Japan.
Maki SuzukiGraduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji-city, Hyogo, 6700092, Japan.
Ikuyo HayashiGraduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji-city, Hyogo, 6700092, Japan.
Toshio MoritaniKyoto Sangyo University, Kyoto, 6038555, Japan.
Kazuhiko KotaniDivision of Community and Family Medicine, Jichi Medical University, Tochigi, 3290498, Japan.
Narumi NagaiGraduate School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike-honcho, Himeji-city, Hyogo, 6700092, Japan. nagai@shse.u-hyogo.ac.jp.
University of Hyogo · JPJichi Medical University · JPKyoto Sangyo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSmartphones are prevalently used among adolescents; however, nighttime exposure to blue-enriched light, through electric devices, is known to induce delays of the circadian rhythm phases and poor morning somatic conditions. We therefore investigated whether evening smartphone use may affect sleep-wake cycle and cardiac autonomic nervous system (ANS) activity after awaking in dormitory students.

methodsThe participants were high school students, living under dormitory rules regarding the curfew, study, meals, lights-out, and wake-up times. The students were forbidden from the use of both television and personal computer in their private rooms, and only the use of a smartphone was permitted. According to prior assessment of smartphone use, we chose age-, sex-, exercise time-matched long (n = 22, >120 min) and short (n = 14, ≤60 min) groups and compared sleep-wake cycle and physiological parameters, such as cardiac ANS activity, blood pressure, and intra-aural temperature. All measurements were performed during 6:30 to 7:00 a.m. in the dormitories.

resultsCompared with the short group, the long group showed a significantly lower cardiac ANS activity (2727 ± 308 vs. 4455 ± 667 ms

conclusionsIn this population, evening smartphone use may be associated with altered sleep-wake cycle and a diminished cardiac ANS activity after awakening could be affecting daytime activities.

Indexed as

SmartphoneAdolescentAutonomic Nervous SystemBlood PressureBody Mass IndexCircadian RhythmElectrocardiographyFemaleHeart RateHumansLife StyleMaleStatistics, NonparametricSurveys and QuestionnairesTime FactorsWakefulnessAutonomic nervous systemLight-emitting electronic devicesSchool dormitorySleep-wake cycle

Identifiers

PMID28324186
OpenAlexW2597867190

What OpenQuestion holds

Textmetadata
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.