Pneumonia severity | Moderate severity | High severity |
BTS guidelines |
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ATS/IDSA guidelines |
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BTS: British Thoracic Society; ATS: American Thoracic Society; IDSA: Infectious Disease Society of America; CURB65: confusion, urea >7 mmol·L−1, respiratory rate ≥30 breaths·min−1, blood pressure <90mmHg (systolic) ≤60 mmHg (diastolic), age ≥65 years.