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Television watching & telomere length among adults in southwest China

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  • Xue, H.-M.
  • Liu, Q.-Q.
  • Tian, G.
  • Quan, L.-M.
  • Zhao, Y.
  • Cheng, G.

Abstract

Objectives. To explore the independent associations of sedentary behavior and physical activity with telomere length among Chinese adults. Methods. Data on total time of sedentary behavior, screen-based sedentary behavior (including television watching and computer or phone use), moderate to vigorous physical activity, and dietary intake of 518 adults in Chengdu, Guizhou, and Xiamen in China (54.25% women) aged 20 to 70 years were obtained between 2013 and 2015 through questionnaires. Height, weight, and waist circumference were measured to calculate body mass index and percentage of body fat. Telomere length was measured through Southern blot technique. Results. Television watching was inversely related to adjusted telomere length (-71.75 base pair; SE = 34.40; P = .04). Furthermore, a similar trend between telomere length and television watching was found in the group aged 20 to 40 years after adjusting for all covariates. Adults aged 20 to 40 years in the highest tertile of daily time spent on watching television had 4.0% shorter telomere length than adults in the lowest tertile (P = .03). Conclusions. Although the association is modest, television watching is inversely related to telomere length among Chinese adults, warranting further investigation in large prospective studies.

Suggested Citation

  • Xue, H.-M. & Liu, Q.-Q. & Tian, G. & Quan, L.-M. & Zhao, Y. & Cheng, G., 2017. "Television watching & telomere length among adults in southwest China," American Journal of Public Health, American Public Health Association, vol. 107(9), pages 1425-1432.
    • Handle: RePEc:aph:ajpbhl:10.2105/ajph.2017.303879_2
    DOI: 10.2105/AJPH.2017.303879
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    Cited by:

    1. Daniel Prieto-Botella & Dries S. Martens & Desiree Valera-Gran & Mikel Subiza-Pérez & Adonina Tardón & Manuel Lozano & Maribel Casas & Mariona Bustamante & Alba Jimeno-Romero & Ana Fernández-Somoano &, 2023. "Sedentary Behaviour and Telomere Length Shortening during Early Childhood: Evidence from the Multicentre Prospective INMA Cohort Study," IJERPH, MDPI, vol. 20(6), pages 1-12, March.
    2. Xianglong Xu & Dengyuan Liu & Yunshuang Rao & Huan Zeng & Fan Zhang & Lu Wang & Yaojie Xie & Manoj Sharma & Yong Zhao, 2018. "Prolonged Screen Viewing Times and Sociodemographic Factors among Pregnant Women: A Cross-Sectional Survey in China," IJERPH, MDPI, vol. 15(3), pages 1-16, February.
    3. Ran Bao & Si-Tong Chen & Yanlei Wang & Jun Xu & Lei Wang & Liye Zou & Yujun Cai, 2020. "Sedentary Behavior Research in the Chinese Population: A Systematic Scoping Review," IJERPH, MDPI, vol. 17(10), pages 1-26, May.

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