evidencegaps
Primary study · included by 1 review

Cigarette smoking, periodontal disease: and chronic obstructive pulmonary disease.

Hyman 2004 · Hyman Jeffrey J, Reid Britt C · Journal of periodontology · 2004

Included by

Linking lungs and gums: a meta-analysis of periodontitis prevalence and severity in chronic obstructive pulmonary disease.
Non-Cochrane · aetiology · 2026 · cited as Hyman 2004 · Table 2; References 22-62

The review does not say which of its outcomes this study informs.

1 including review in total.