Supplementary material 16 to: Electronic cigarettes for smoking cessation

Lindson N, Livingstone-Banks J, Butler AR, McRobbie H, Bullen CR, Hajek P, Wu AD, Begh R, Theodoulou A, Ma C, Notley C, Rigotti NA, Turner T, Fanshawe T, Hartmann-Boyce J
https://doi.org/10.1002/14651858.CD010216.pub11

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Data on lung function from studies not contributing to meta-analyses

Study ID

Comparison

Time point

Data

Direction over time (↓ decline; ↔ equivocal; ↑ increase)

Katz 2025

Nicotine EC v combustible cigarettes

2 weeks

“Changes in objective (spirometry, oscillometry) and self-reported (CAT, SGRQ-C) pulmonary measures were minor and did not meet thresholds for statistical significance.”