The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists.

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  • Additional Information
    • Source:
      Publisher: Elsevier Inc Country of Publication: United States NLM ID: 101656808 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2352-7226 (Electronic) Linking ISSN: 23527218 NLM ISO Abbreviation: Sleep Health Subsets: MEDLINE
    • Publication Information:
      Original Publication: [New York, NY] : Elsevier Inc., [2015]-
    • Subject Terms:
    • Abstract:
      Objective: To understand the basics of sleep quality in a pastoralist population and to explore predictors of this variation.
      Design: Cross-sectional.
      Setting: Northern Namibia, dry seasons of 2016 and 2017.
      Participants: The Himba, a nonindustrial seminomadic agropastoralist population without access to the electrical grid.
      Measurements: Using Actiwatch-2 devices, 75 participants completed 721 days of wear. We calculated sleep duration, efficiency, and activity counts before and after sunset/sunrise and onset/offset. Participants were also interviewed about sleeping arrangements and nighttime disruptions.
      Results: Himba show lower sleep duration and efficiency than other populations studied, and men had substantially lower duration and efficiency than women. Sex differences were not attenuated when napping was included with total sleep time. Age predicted longer sleep duration and lower evening and morning activity levels. Number of adult co-sleepers predicted increased sleep duration and efficiency in women. Livestock disturbance was not a commonly reported cause of nighttime waking.
      Conclusions: These findings support predictions that pastoralist groups may have lower sleep quality than other subsistence populations, but this does not appear to be a consequence of noise from livestock. Instead, lower sleep quality appears to be the result of subsistence and social activities, particularly for men and young adults overall.
      (Copyright © 2018 National Sleep Foundation. Published by Elsevier Inc. All rights reserved.)
    • Grant Information:
      I01 BX001753 United States BX BLRD VA; R01 DA034748 United States DA NIDA NIH HHS
    • Contributed Indexing:
      Keywords: Actigraphy*; Activity*; Cross-cultural comparison*; Pastoralism*; Sleep disturbance*; Sleeping arrangement*
    • Publication Date:
      Date Created: 20181117 Date Completed: 20190320 Latest Revision: 20200514
    • Publication Date:
      20200527
    • Accession Number:
      10.1016/j.sleh.2018.09.012
    • Accession Number:
      30442317
  • Citations
    • ABNT:
      PRALL, S. P. et al. The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists. Sleep health, [s. l.], v. 4, n. 6, p. 500–508, 2018. DOI 10.1016/j.sleh.2018.09.012. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=mnh&AN=30442317. Acesso em: 9 ago. 2020.
    • AMA:
      Prall SP, Yetish G, Scelza BA, Siegel JM. The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists. Sleep health. 2018;4(6):500-508. doi:10.1016/j.sleh.2018.09.012
    • APA:
      Prall, S. P., Yetish, G., Scelza, B. A., & Siegel, J. M. (2018). The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists. Sleep Health, 4(6), 500–508. https://doi.org/10.1016/j.sleh.2018.09.012
    • Chicago/Turabian: Author-Date:
      Prall, Sean P, Gandhi Yetish, Brooke A Scelza, and Jerome M Siegel. 2018. “The Influence of Age- and Sex-Specific Labor Demands on Sleep in Namibian Agropastoralists.” Sleep Health 4 (6): 500–508. doi:10.1016/j.sleh.2018.09.012.
    • Harvard:
      Prall, S. P. et al. (2018) ‘The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists’, Sleep health, 4(6), pp. 500–508. doi: 10.1016/j.sleh.2018.09.012.
    • Harvard: Australian:
      Prall, SP, Yetish, G, Scelza, BA & Siegel, JM 2018, ‘The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists’, Sleep health, vol. 4, no. 6, pp. 500–508, viewed 9 August 2020, .
    • MLA:
      Prall, Sean P., et al. “The Influence of Age- and Sex-Specific Labor Demands on Sleep in Namibian Agropastoralists.” Sleep Health, vol. 4, no. 6, Dec. 2018, pp. 500–508. EBSCOhost, doi:10.1016/j.sleh.2018.09.012.
    • Chicago/Turabian: Humanities:
      Prall, Sean P, Gandhi Yetish, Brooke A Scelza, and Jerome M Siegel. “The Influence of Age- and Sex-Specific Labor Demands on Sleep in Namibian Agropastoralists.” Sleep Health 4, no. 6 (December 2018): 500–508. doi:10.1016/j.sleh.2018.09.012.
    • Vancouver/ICMJE:
      Prall SP, Yetish G, Scelza BA, Siegel JM. The influence of age- and sex-specific labor demands on sleep in Namibian agropastoralists. Sleep health [Internet]. 2018 Dec [cited 2020 Aug 9];4(6):500–8. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=mnh&AN=30442317