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Table 1 The clinical and laboratory features of 30 patients with Streptococcus anginosus group infections

From: The clinical features of respiratory infections caused by the Streptococcus anginosus group

  Total (n = 30)
Age (y); mean ± SD 68.9 ± 14.2
Gender (male/female) 22/8
BMI; mean ± SD 20.1 ± 4.1
Comorbidity diseases 28 (93.3)
 Neoplastic disease 8 (26.7)
 Cerebrovascular disease 12 (40.0)
 Chronic pulmonary disease 3 (10.0)
 Chronic cardiac disease 4 (13.3)
 Chronic liver disease 3 (10.0)
 Chronic renal disease 4 (13.3)
 Diabetes mellitus 6 (20.0)
Smoking history 13 (43.3)
Alcohol 8 (26.7)
The days from symptom onset to consultation (days) 15.1 ± 18.1
Symptoms at presentation
 Fever 24 (80.0)
 Cough 14 (46.7)
 Sputum 14 (46.7)
 Blood sputum 2 (6.7)
 Chest pain 14 (46.7)
 Disturbance of consciousness 3 (10.0)
Previous antibiotic treatment 8 (26.7)
Clinical parameter
 Body temperature (°C) 37.8 ± 0.7
 Systolic blood pressure (mmHg) 118.8 ± 20.9
 Heart rate (beats/min) 103.7 ± 17.0
 Respiratory rate (/min) 23.3 ± 5.7
 Hypoxia (SpO2 ≤ 90 %) 18 (60.0)
Laboratory findings
 White blood cell counts (/μL) 17,627 ± 10,008
 C-reactive protein (mg/dL) 18.0 ± 11.1
 Albumin (g/dL) 2.5 ± 0.6
Pleural effusion 22 (73.3)
 Complicated pleural effusion 10 (33.3)
 Empyema 11 (36.7)
Cultured bacteria
 SAG only 24 (80.0)
 Mixed infection 6 (20.0)
Pneumonia severity index 120.8 ± 42.2
Antibiotic treatment
Monotherapy 25 (83.3)
 Penicillin/beta-lactamase inhibitors 3 (10.0)
 Carbapenem 19 (63.3)
 Linezolid 1 (3.3)
 Macrolide 2 (6.7)
Combination therapy 5 (16.7)
 3th-cephem + Macrolide 1 (3.3)
 4th-cephem + Clindamycin 1 (3.3)
 Carbapenem + Clindamycin 2 (6.7)
 Fluoroquinolone + Clindamycin 1 (3.3)
Additional treatment
 Only drainage 5 (16.7)
 Drainage + lung decortication 14 (46.7)
Length of stay (days) 27.7 ± 18.8
ICU admission 6 (20.0)
In-hospital mortality 2 (6.7)
  1. SD standard deviation, BMI body mass index, SpO 2 pulse oximetric saturation, SAG streptococcus anginosus group, ICU intensive care unit