Evidence map›Paper›PMID 33122322›Full record

ArticleBMJ open2020

Effects of sleep quality on non-alcoholic fatty liver disease: a cross-sectional survey.

Atsushi Takahashi, Yukio Anzai, Masahito Kuroda, Masae Kokubun, Yuichiro Kondo, Takashi Ogata, Masashi Fujita, Manabu Hayashi, Hiromichi Imaizumi, Kazumichi Abe and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  6. The Beauty Sleep to Keep a Healthy Liver.International journal of molecular sciences · 2025
    Review
  7. Observational
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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

12 authors at 3 institutions in 3 countries.

Atsushi TakahashiGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan junior@fmu.ac.jp.ORCID 0000-0003-0568-8361
Yukio AnzaiGastroenterology, Watari Hospital, Fukushima, Japan.
Masahito KurodaGastroenterology, Fukushima Red Cross Hospital, Fukushima, Japan.
Masae KokubunTotal Medical Checkup, Jusendo Hospital, Koriyama, Fukushima, Japan.
Yuichiro KondoGastroenterology, Fujita General Hospital, Date-gun, Fukushima, Japan.
Takashi OgataGastroenterology, Masu Memorial Hospital, Nihonmatsu, Japan.
Masashi FujitaGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Manabu HayashiGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Hiromichi ImaizumiGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Kazumichi AbeGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Nobuo TanjiGastroenterology, Watari Hospital, Fukushima, Japan.
Hiromasa OhiraGastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Fukushima Medical University · JPUniversity Gastroenterology · USTotal (Belgium) · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe effects of sleep quality on the risk of developing non-alcoholic fatty liver disease (NAFLD) remain uncertain. The purpose of this study was to clarify the association between sleep quality and NAFLD.

methodsThe data of 4828 participants who underwent health check-ups at four hospitals were analysed. Sleep quality was evaluated by the Pittsburgh Sleep Quality Index (PSQI), which comprised seven elements scored from 0 to 3. The global PSQI score and the score for each element were compared between NAFLD and non-NAFLD groups separately by sex. Logistic regression analysis was performed to determine the association between NAFLD and each PSQI score.

resultsIn both men and women, the mean PSQI score for sleep medication use was significantly higher in non-NAFLD than in NAFLD. With regard to sleep medication use in men, the OR (95% CI) for NAFLD was lower with a score of 3 (OR 0.60, 95% CI 0.38-0.95) than with a score of 0 on multivariate logistic regression analysis adjusted for age, smoking habits and physical activity. The OR for NAFLD based on daytime dysfunction was also higher with a score of 3 than with a score of 0 in both men (OR 2.82, 95% CI 1.39-5.75) and women (OR 2.08, 95% CI 1.10-3.92). After adjustment for body mass index, the sleep latency scores in men and daytime dysfunction in women were associated with NAFLD.

conclusionSleep quality was associated with NAFLD, and there were sex differences.

Indexed as

Non-alcoholic Fatty Liver DiseaseSleep Wake DisordersBody Mass IndexCross-Sectional StudiesFemaleHumansMaleRisk FactorsSleepgastroenterologyhepatobiliary diseasesleep medicine

Identifiers

PMID33122322
PMCPMC7597499
OpenAlexW3097625613

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.