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21st February 2025
Risk factors for pneumothorax
| Primary spontaneous | Secondary spontaneous |
|---|---|
| Smoking (tobacco or cannabis) | COPD (most common), ILD (interstitial lung disease), TB, cystic fibrosis, malignancy, necrotising pneumonia |
| Male gender | Male gender |
| Young adults (peak age 20 for first presentation) | Older age group (usually >55 years) |
| Tall, slender body type | |
| Marfan syndrome | |
| Family history |
Table 9 Risk factors for spontaneous pneumothorax
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