Evidence map›Paper›PMID 40655183›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2025

Chronic Marijuana Use and Chronic Obstructive Pulmonary Disease: A Case Report.

Brenna S Ostertag, Kathryn W Hendrickson

Abstract readCase Reports
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Brenna S OstertagInternal Medicine Department, Providence Portland Medical Center, Portland, OR, USA.ORCID 0009-0005-4077-5729
Kathryn W HendricksonDivision of Pulmonary, Critical Care & Sleep Medicine, The Oregon Clinic, Portland, OR, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Marijuana smoking has become increasingly common in the United States and the world as more states and countries have legalized it for medical and recreational use. There are a number of carcinogens in marijuana smoke similar to those in tobacco smoke, and yet it has been difficult in the literature to find a causal relationship between marijuana smoking and chronic obstructive pulmonary disease (COPD). We present a patient whose main risk factor for emphysema is daily marijuana smoking for upwards of 35 years with no personal history of smoking tobacco, and no other obvious risk factors. Current studies have shown association with chronic marijuana smoking and various lung complaints, forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC) ratio, and inconsistently with chronic bronchitis. With this case, we add to the current body of literature that suggests a possible relationship between long-term, heavy marijuana use and COPD.

Indexed as

LungMarijuana SmokingPulmonary Disease, Chronic ObstructivePulmonary EmphysemaForced Expiratory VolumeHumansMaleMiddle AgedRisk FactorsVital Capacitycarcinogenschronic obstructive pulmonary diseaseemphysemamarijuanasmoking

Identifiers

PMID40655183
PMCPMC12254581

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.