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Updated: Jun 17, 2026

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A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
Published on: October 5, 2015
[Pulmonary tuberculosis in smokers].
Hajer Racil1, Jihen Ben Amar, Sana Cheikrouhou
1Service de pneumologie pavillon II ; Hôpital Abderrahmen Mami Ariana, Tunisie.
Summary
Smoking significantly worsens tuberculosis (TB) radiological findings and outcomes. Smokers with TB experience more severe lesions and lasting lung damage, highlighting the need for smoking cessation in TB care.
Area of Science:
- Pulmonology
- Public Health
- Radiology
Background:
- Tuberculosis (TB) and tobacco smoking are significant global health issues.
- Smoking may influence TB morbidity and mortality rates.
- This study investigated TB in smokers versus nonsmokers.
Purpose of the Study:
- To compare clinical and radiological aspects of pulmonary TB in smokers and nonsmokers.
- To evaluate treatment outcomes in relation to smoking status.
- To assess the impact of smoking on TB lesion severity and sequelae.
Main Methods:
- Retrospective case-control study of 90 pulmonary TB patients (45 smokers, 45 nonsmokers).
- Radiological lesion severity scored using the International Labour Organization (ILO) classification.
- Comparison of clinical, bacteriological, radiological, and outcome data between groups.
Main Results:
- No significant clinical or bacteriological differences were observed between smokers and nonsmokers.
- Smokers showed significantly higher severity scores for radiological lesions (81% vs. 15%, p<0.001).
- Severe radiological sequelae were observed only in smokers post-treatment (13.8% vs. 0%, p<0.05).
Conclusions:
- Smoking is linked to more extensive and severe radiological TB lesions.
- Smoking increases the risk of morbidity and mortality in TB patients.
- Smoking prevention and cessation are crucial components of TB management programs.
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