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Table 2 Demographic, clinical and laboratory characteristics of study patients

From: Pertussis in infants: an underestimated disease

 

BP+

VR+

BP-/VR-

p

(n = 53)

(n = 119)

(n = 43)

Age (days)a

56.20 ± 21.66

51.62 ± 20.59

50.16 ± 22.96

0,3

Male gender

34 (64.2 %)

66 (55.5 %)

24 (55.8 %)

0.56

Cough

45 (84.9 %)

100 (84 %)

18 (41.9 %)

<0.001

Paroxysmal cough

16 (30.2 %)

7 (5.9 %)

1 (2.3 %)

<0.001

Apnea

30 (56.6 %)

26 (21.8 %)

23 (53.5 %)

<0.001

Emesis

10 (18.9 %)

25 (21 %)

5 (11.6 %)

0.39

Whoop

4 (7.5 %)

0

2 (4.7 %)

0.015

Fever

1 (1.9 %)

39 (32.8 %)

8 (18.6 %)

<0.001

Rhinorrhea

0

24 (20.2 %)

3 (7 %)

0.001

Dyspnea

4 (7.5 %)

19 (16 %)

10 (23.3 %)

0.1

WBC (n/mm3)a

17.432 ± 9.332

11.908 ± 5.586

11.300 ± 3.731

<0.001

L (n/mm3)a

10.553 ± 6.349

5.278 ± 2.996

5.728 ± 2.442

<0.001

CRP (mg/dl)a

0.19 ± 0.43

0.76 ± 1.4

0.6 ± 1.1

0.046

Length of symptoms before admission (days)a

9.07 ± 6.68

3.13 ± 2.87

3.72 ± 4.03

<0.001

Length of hospital stay (days)a

8.06 ± 4.56

6.19 ± 3.00

8.76 ± 7.99

0.001

Complications

    

 O2therapy

13 (24.5 %)

33 (27.7 %)

9 (20.9 %)

0.66

 Pneumonia

3

18

3

0.12

 Death

0

0

0

-

  1. BP+ patients with Bordetella pertussis positive aspirate, RV+: patients with respiratory virus positive aspirate, BP-RV- patients with Bordetella pertussis and respiratory virus negative aspirate, WBC white blood count, L lymphocyte count, CRP C-reactive protein
  2. aexpressed as mean ± SD