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Table 1 Baseline Characteristics of the 545 Patients*

From: Diagnostic and prognostic accuracy of clinical and laboratory parameters in community-acquired pneumonia

Characteristic  
Age – years 67.1 ± 18.0
Male sex – no. (%) 314 (62.6)
Smoking status  
   - Current smoker – no. (%) 135 (24.8)
   - Packyears history in smokers 40.0 ± 24.9
Antibiotic pretreatment (%) 110 (20.2)
Underlying disease – no. (%)  
   - Coronary artery disease 156 (28.6)
   - Hypertensive heart disease 95 (17.4)
   - Congestive heart failure 34 (6.2)
   - Peripheral vascular disease 39 (7.2)
   - Cerebrovascular disease 25 (4.6)
   - Renal dysfunction 121 (22.2)
   - Liver disease 43 (7.9)
   - Diabetes mellitus 93 (17.1)
   - Neoplastic disease 65 (11.9)
Symptoms – no. (%)  
   - Cough 497 (91.2)
   - Sputum 390 (71.6)
   - Dyspnea 392 (71.9)
Signs– no. (%)  
   - Rales 394 (72.3)
Final diagnoses – no. (%)  
   - CAP 373 (68.4)
   - Other respiratory tract infections 132 (24.2)
- Asthma 13 (2.4)
- Acute bronchitis 59 (10.8)
- Acute exacerbation of COPD 60 (11.0)
   - Others 40 (7.3)
- With infiltrate on chest radiography 23 (4.2)
- Without infiltrate on chest radiography 17 (3.1)
PSI in patients with CAP – points 96.4 ± 36.0
PSI class – no. (%)  
   - I, II and III 162 (43.4)
   - IV 150 (40.2)
   - V 61 (16.4)
Laboratory parameters  
hsCRP (mg/L) (mean; median (range)) 127.9; 103.4 (0.5–512)
PCT (μg/L) (mean; median (range)) 3.1; 0.32 (0.02–234.7)
Leukocyte count (×109/L) 12.9 ± 6.7
  1. *Plus-minus values are means ± SD. Because of rounding, percentages may not sum to 100. COPD denotes chronic obstructive pulmonary disease, PSI pneumonia severity index, CAP community-acquired pneumonia, hsCRP highly-sensitive C-reactive protein, PCT procalcitonin.