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Table 2 Relationships between ultrasonography (USG) and patient and disease characteristics

From: Frequency of pleural effusion in acute bronchiolitis and its effect on prognosisFrequenza di versamento pleurico nella bronchiolite acuta e suoi effetti sulla prognosi

Factor USG P
  Normal (n = 35)   Pathologic (n = 34)   
  N % N %  
Age (months) 11.8 ± 5.6 (Median = 11)   12.08 ± 5.9 (Median = 11.5)   0.780
Sex (Male/Female) 22/13   21/13   0.56
Use of mother's milk (months) 9.1 ± 5.1 (Median = 11)   7.3 ± 3.8 (Median = 6.5)   0.15
Smoking in the house 16 45.7 18 52.8 0.36
Use of vitamin D 35 100.0 31 91.2 0.11
Risk factor 4 11.4 17 50 0.01
Duration of symptoms (days) 4.5 ± 2.8 (Median = 4) 4.2 ± 3.4 (Median = 3) 0.41
   Fever 13 37.1 18 52.9 0.23
   Cough 35 100.0 31 91.2 0.11
   Rhinitis 31 88.6 24 70.6 0.078
   Wheezing 35 100 33 97.1 0.493
   Rale 29 82.9 30 88.2 0.734
   Rhonchus 34 97.1 33 97.1 1.000
   Use of accessory respiratory muscles 13 37.1 14 41.2 0.808
   Tachypnea 16 45.7 14 41.2 0.809
   Nasal flaring 11 31.4 11 32.4 1.000
Antibiotic treatment (n) 22 62.9 22 64.7 1.000
Recovery period (days) 4.6 ± 2.1 (Median = 4) 5.3 ± 2.7 (Median = 5) 0.20