Evidence map›Paper›PMID 27484757›Full record

ArticleNutrition, metabolism, and cardiovascular diseases : NMCD2016

Daytime napping, sleep duration and increased 8-year risk of type 2 diabetes in a British population.

Y Leng, F P Cappuccio, P G Surtees, R Luben, C Brayne, K-T Khaw

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nutrition, metabolism, and cardiovascular diseases : NMCD, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 6 pooled it
7.4field-weighted citation impact, top 3% 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

41 citing papers in PubMed, 6 syntheses or guidelines pooled it, 63 citations in OpenAlex.

  1. Pooled it
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  11. Patterns of Sleep Duration and Metabolic Biomarkers Across the Menstrual Cycle.The Journal of clinical endocrinology and metabolism · 2025
    Article
  12. Article
  13. Napping and Obesity in Adults - What do we Know?Current diabetes reports · 2024
    Review
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  16. Article
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  19. Daytime napping and Alzheimer's dementia: A potential bidirectional relationship.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
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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 at 2 institutions in 1 country.

Y LengInstitute of Public Health, University of Cambridge, UK. Electronic address: yue.leng@ucsf.edu.
F P CappuccioDivision of Mental Health & Wellbeing, Warwick Medical School, University of Warwick, Coventry, UK.
P G SurteesInstitute of Public Health, University of Cambridge, UK.
R LubenInstitute of Public Health, University of Cambridge, UK.
C BrayneInstitute of Public Health, University of Cambridge, UK.
K-T KhawInstitute of Public Health, University of Cambridge, UK.
University of Cambridge · GBUniversity of Warwick · GB

Funding

Cancer Research UK C865/A2883Medical Research Council G0300128Medical Research Council G0401527Medical Research Council G1000143Medical Research Council G9502233Medical Research Council MR/N003284/1
6 · The paper itself

Abstract

BACKGROUND AND

aimsFew studies have prospectively examined the relationship between daytime napping and risk of type 2 diabetes. We aimed to study the effects of daytime napping and the joint effects of napping and sleep duration in predicting type 2 diabetes risk in a middle- to older-aged British population. METHODS AND

resultsIn 1998-2000, 13 465 individuals with no known diabetes participating in the European Prospective Investigation into Cancer-Norfolk study reported daytime napping habit and 24-h sleep duration. Incident type 2 diabetes cases were identified through multiple data sources until 31 July 2006. After adjustment for age and sex, daytime napping was associated with a 58% higher diabetes risk. Further adjustment for education, marital status, smoking, alcohol intake, physical activity, comorbidities and hypnotic drug use had little influence on the association, but additional adjustment for BMI and Waist Circumference attenuated the Odds ratio (OR) (95% CI) to 1.30 (1.01, 1.69). The adjusted ORs (95% CI) associated with short and long sleep duration were 1.46 (1.10, 1.90) and 1.64 (1.16, 2.32), respectively. When sleep duration and daytime napping were examined together, the risk of developing diabetes more than doubled for those who took day naps and had less than 6 h of sleep, compared to those who did not nap and had 6-8 h of sleep.

conclusionDaytime napping was associated with an increased risk of type 2 diabetes, particularly when combined with short sleep duration. Further physiological studies are needed to confirm the interaction between different domains of sleep in relation to diabetes risk.

Indexed as

HabitsSleepAdiposityAgedAge FactorsBody Mass IndexChi-Square DistributionDiabetes Mellitus, Type 2FemaleHumansIncidenceLife StyleLogistic ModelsMaleMiddle AgedMultivariate AnalysisCohortEpidemiologyProspectiveSleepType 2 diabetes

Identifiers

PMID27484757
PMCPMC5084679
OpenAlexW2464712478

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.