COVID-19 diagnosis

Disease

1 paper1 finding

  • Humans1

Associations

1

Smoking

downin humans1HR 0.93

1 study
  1. Smoking is associated with COVID-19 diagnosis in humans (HR 0.93, 95% CI 0.91–0.96).

    “and for diagnosis 0.93 [0.91–0.96] in the general population cohort”

    HumansCurrent versus never-smokers in the Norwegian general population cohortJanuary 2020 to December 2022n = 155,333

    Reproducible smoker’s paradox in COVID-19 - comparative evidence from Swedish and Norwegian cohorts

    Scientific reports13 Oct 2026

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