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Research Article

The Joint Effect of Sleep Duration and Disturbed Sleep on Cause-Specific Mortality: Results from the Whitehall II Cohort Study

  • Naja Hulvej Rod mail,

    nahuro@sund.ku.dk

    Affiliations: Department of Public Health, University of Copenhagen, Copenhagen, Denmark, Copenhagen Stress Research Center, Copenhagen, Denmark

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  • Meena Kumari,

    Affiliation: Department of Epidemiology and Public Health, University College London, London, England

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  • Theis Lange,

    Affiliation: Department of Public Health, University of Copenhagen, Copenhagen, Denmark

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  • Mika Kivimäki,

    Affiliation: Department of Epidemiology and Public Health, University College London, London, England

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  • Martin Shipley,

    Affiliation: Department of Epidemiology and Public Health, University College London, London, England

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  • Jane Ferrie

    Affiliations: Department of Epidemiology and Public Health, University College London, London, England, School of Social and Community Medicine, University of Bristol, Bristol, England

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  • Published: April 03, 2014
  • DOI: 10.1371/journal.pone.0091965

About the Authors

Naja Hulvej Rod, Theis Lange
Department of Public Health, University of Copenhagen, Copenhagen, Denmark
Naja Hulvej Rod
Copenhagen Stress Research Center, Copenhagen, Denmark
Meena Kumari, Mika Kivimäki, Martin Shipley, Jane Ferrie
Department of Epidemiology and Public Health, University College London, London, England
Jane Ferrie
School of Social and Community Medicine, University of Bristol, Bristol, England

Corresponding Author

Email: nahuro@sund.ku.dk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NHR M. Kumari TL M. Kivimaki MS JF. Analyzed the data: NHR. Contributed reagents/materials/analysis tools: NHR M. Kumari TL M. Kivimaki MS JF. Wrote the paper: NHR M. Kumari TL M. Kivimaki MS JF.