E-cigarette Duration and Incident COPD Among Adults Aged 40 Years and Older with a Smoking History.

ABSTRACT:

Importance

Chronic obstructive pulmonary disease (COPD) remains a leading cause of morbidity and mortality in the United States (US), largely driven by cigarette smoking and characterized by progressive lung injury. While e-cigarettes are promoted as a less harmful alternative to cigarette smoking, their long-term health effects, including the impact of prolonged use on COPD incidence among adults who have smoked, are not well understood.

Objective

To evaluate the prospective association between duration of e-cigarette use and incident COPD among US adults aged 40 years or older with a history of cigarette smoking, and to determine whether baseline respiratory symptoms modify this association.

Design settings and participants

We used data from Waves 4 to 7 (2017-2022)

SUBMITTER: Cook S 

PROVIDER: S-EPMC12889799 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature