evidencegaps
Primary study · included by 1 review

Comparison of the respiratory microbiome in healthy nonsmokers and smokers.

Morris 2013 · Morris Alison, Beck James M, Schloss Patrick D, et al. · American journal of respiratory and critical care medicine · 2013

Included by

The Effects of Smoking on Respiratory Microbiota Diversity and Composition: A Systematic Review with Exploratory Meta-Analysis.
Non-Cochrane · aetiology · 2026 · cited as Morris 2013 · References 34-45, 20; Section 3.4
Outcome this study informsPooled effectEvidenceCertainty
Bronchoalveolar lavage inverse Simpson alpha diversity
Cigarette smoking vs Non-smoking or never smoking
SMD -1.63 [-5.07, 1.81]2 studies · 81 participantsGRADE not reported

1 including review in total.