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Table 3 Clinical differences in the Two Study Groups

From: Infants hospitalized for Bordetella pertussis infection commonly have respiratory viral coinfections

Clinical variables

Pertussis

(N = 28)

Pertussis + Virus

(N = 25)

P Values*

Duration of symptoms before hospitalization (mean ± SD)

11.4 ± 7.8

13.1 ± 9.9

0.515

Paroxysmal cough

24 (85.7%)

19 (76%)

0.291

Cyanosis

16 (57.1%)

14 (56%)

0.576

Apnea

24 (85.9%)

20 (80%)

0.425

Post-cough vomit

15 (57.6%)

14 (56%)

0.540

Fever: T > 37.5 °C

3 (10.7%)

5 (20%)

0.288

Skin petechiae

1 (3.6%)

4 (16%)

0.142

Conjunctival hemorrhage

0

3 (12%)

0.098

Complicationsa

10 (35.7%)

6 (24%)

0.662

  1. *by χ-square test
  2. ahypoxia, bradycardia, pneumonia, gastroenteritis, thrombocytopenia, urinary tract infection, anemia, dehydration, feeding difficulties, transient hypertension