ArticlePloS one2018
Physical activity, sleep and risk of respiratory infections: A Swedish cohort study.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
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Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- The relationship between duration and quality of sleep and upper respiratory tract infections: a systematic review.Family practice · 2021Pooled it
- Innate immune mechanisms of infection: what we know and potential conserved mechanisms affecting sleep during infection.Neurobiology of sleep and circadian rhythms · 2025Article
- Individual associations of self-reported sleep duration, sleep quality, chronotype and social jet lag with infectious disease risk.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- The association between self-reported sleep problems, infection, and antibiotic use in patients in general practice.Frontiers in psychiatry · 2023Article
- Sleep disruption induces activation of inflammation and heightens risk for infectious disease: Role of impairments in thermoregulation and elevated ambient temperature.Temperature (Austin, Tex.) · 2023Article
- Effect of Conventional Nursing Combined with Bedtime Oculomotor Training on Sleep Quality and Body Immunity of Advanced Lung Cancer Patients.Journal of healthcare engineering · 2022Article
- Effect of High Fat and Fructo-Oligosaccharide Consumption on Immunoglobulin A in Saliva and Salivary Glands in Rats.Nutrients · 2021Article
- The Sleep-Immune Crosstalk in Health and Disease.Physiological reviews · 2019Review
- Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesPrevious studies found higher levels of physical activity to be protective against infections and that short and long sleep negatively affects the immune response. However, these relationships remain debatable. We aimed to investigate if physical activity and sleep habits affect incidence of upper respiratory tract infections (URTI) in a prospective cohort study.
methodsA total of 2,038 adults aged 25-64 years served as a random sample of the gainfully employed population of an industrial town in Sweden. Physical activity and sleep habits were estimated through self-reported questionnaires. Physical activity was expressed as metabolic energy turnover hours per day. Sleep was assessed as number of hours slept per night and its perceived quality. URTI outcome was prospectively self-reported during a 9-month follow-up period. Associations of physical activity and sleep with URTI were estimated using hurdle regression models adjusted for potential confounders.
resultsDuring 1,583 person-years 1,597 URTI occurred, resulting in an incidence of 1.01 infections/person-year (95% CI 0.96-1.06). The fitted regression models did not provide support for an association with physical activity or sleep habits. Factors positively associated with experiencing URTI were having children ≤ 6 years, female gender, higher education and treatment for allergy, asthma or lung cancer. Having children ≤ 6 years and female gender were related to a higher number of URTI among those experiencing URTI.
conclusionsWe did not find any association between physical activity, sleep duration or sleep quality and the occurrence of upper respiratory tract infections in adult Swedish population.
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Registered trials
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