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Table 2 Clinical characteristics of the 19 infants with pertussis and the 19 infants with RSV bronchiolitis

From: Bordetella pertussis in infants hospitalized for acute respiratory symptoms remains a concern

Clinical characteristics Infants with pertussis Infants with RSV bronchiolitis p
Paroxysmal cough 12 (63.2%) 0 (0.0%) 0.001
Cough at admission median in days (range) 7 (0-20) 3 (0-15) 0.09
Apnea 10 (52.6%) 2 (10.5%) 0.006
Cyanosis 10 (52.6%) 2 (10.5%) 0.006
Fever (> 37.5°C) 3 (15.8%) 13 (68.4%) 0.001
Chest sounds    0.005
  Rales 7 (36.8%) 11 (57.9%)  
  Wheeze 3 (15.8%) 2 (10.5%)  
  Rales and Wheeze 1 (5.3%) 6 (31.6%)  
  Negative 8 (42.1%) 0 (0.0%)  
Severity score median (range) 3 (0-6) 5 (0-7) n.s.
Hospitalization length median in days (range) 7 (2-15) 5 (1-27) n.s.
Complications    n.s.
  Bradycardia 2 (10.5%) 1 (5.3%)  
  Respiratory 3 (15.8%) 1 (5.3%)  
  Total 5 (26.6%) 2 (10.5%)  
  1. p values by Mann-Whitney U test.
  2. RSV: respiratory syncytial virus.