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Table 3 Clinical diagnosis observed in patients with positive B. pertussis and RSV by PCR

From: High prevalence of Bordetella pertussis in children under 5 years old hospitalized with acute respiratory infections in Lima, Peru

Clinical diagnosis Total of patients Patients positive for Bordetella pertussis Patients positive for RSV
Frequency Prevalence Frequency Prevalence p-value** Frequency Prevalence p-value**
(n = 596) (%) (n = 114) (%)   (n = 103) (%)
Pneumonia 193 32.38 30 26.32* 0.124 44 42.72* 0.014
Pharyngitis 6 1.01 0 0 0.231 1 0.97 0.968
Rhinopharyngitis 33 5.54 7 6.14 0.754 3 2.91 0.200
Bronchiolitis 57 9.56 9 7.9* 0.327 21 20.39* <0.05
Influenza A Infection 51 8.56 10 8.77 0.927 6 5.83 0.276
Whooping cough-like syndrome 10 1.68 3 2.63 0.378 2 1.94 0.819
Obstruction syndrome to bronchiolar 41 6.88 9 7.89 0.634 11 10.68 0.094
  1. * z-Test: Patients positive for Bordetella pertussis vs Patients positive for RSV, p < 0.05
  2. ** χ2-Test
  3. Others (1 % of cases): Sinusitis, respiratory distress syndrome, sepsis late atypical febrile seizure status epilepticus, atypical febrile seizure, gastroenteritis