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Knowledge of smoking risks may show little gain

Cardiovascular and secondhand smoke risks remained less widely recognized than lung cancer risks among adults who smoke.

  • By

  • Andrea Surnit

  • August 26, 2026

  • 4 min

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  • 1

    Knowledge of smoking-related diseases among adult smokers showed little improvement over 20 years across 46 countries.

  • 2

    The study analyzed data from 133,410 adults in the ITC Project and 110,537 adults in the GATS.

  • 3

    Awareness of smoking causing lung cancer was highest at 92%, while knowledge of stroke and secondhand smoke harms was lower.

  • 4

    Some countries showed significant increases in knowledge of smoking risks, while others experienced declines or no change.

  • 5

    The study highlights the need for effective tobacco control strategies due to the near-zero net change in knowledge.

Original Source(s)

Knowledge of smoking risks may show little gain

  • by Andrea Surnit

  • August 26, 2026

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