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Table 1 Clinical characteristics of the severe psittacosis pneumonia cases

From: Application of metagenomic next-generation sequencing in the diagnosis of severe pneumonia caused by Chlamydia psittaci

Characteristics Patients, n (%) Median value, (range)
Demographics
Male/female 7/6  
Age, median (range, years)   65 (33–78)
History of contact with avian or poultry 5/13 (38.46)  
Underlying disease 5/13 (38.46)  
Clinical manifestations
Fever > 38.5 °C 13/13 (100.00)  
Cough, dyspnea 13/13 (100.00)  
Headache 6/13 (46.15)  
Myalgia 10/13 (76.92)  
Septic shock 9/13 (69.23)  
Invasive ventilator support 5/13 (38.46)  
Days from illness to respiratory failure   8 (2–10)
Laboratory testing
Elevated WBC (normal 4–10, × 109/L) 2/13 (15.38) 7.50 (3.20–18.28)
Elevated percentage of neutrophils (normal 45–75%) 13/13 (100.0) 0.90 (0.63–0.97)
Elevated CRP (normal 0–8mg/L) 13/13 (100.0) 172.87(45.99–270.00)
Increased PCT (normal 0–0.5 ng/ml) 9/13 (69.23) 3.96 (0.06–25.78)
Imaging   
Lesion began in lower lobe of lung 8/13 (61.54)  
Lesion began in upper lobe of lung 5/13(38.46)  
Consolidation with air bronchograms 13/13 (100.00)  
Complete CT recovery in survivors 11/11 (100.00)  
Oxygen therapy method
noninvasive ventilator 8/13(61.5)  
invasive ventilator 5/13(38.46)  
  1. CRP C-reactive protein, CT computed tomography, PCT procalcitonin, WBC white blood cell