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. 2018 May 18;11:318. doi: 10.1186/s13104-018-3405-7

Table 2.

Clinical symptoms among patients with whooping cough syndrome and Bordetella pertussis

Clinical symptoms Total of patients n = 88 (%) Patients positive for B. pertussis n = 18 (%)
< 28 days
n = 2
29 days–< 3 months
n = 9
3–5 months
n = 2
6–11 months
n = 2
1–5 years
n = 3
Paroxysmal cough 67 (76.1) 1 (5.6) 7 (38.9) 2 (11.1) 2 (11.1) 3 (16.7)
Difficulty breathing 66 (75) 1 (5.6) 6 (33.3) 1 (5.6) 2 (11.1) 3 (16.7)
Cyanosis 59 (67) 2 (11.1) 7 (38.9) 1 (5.6) 2 (11.1) 2 (11.1)
Fever 46 (52.3) 1 (5.6) 5 (27.8) 0 (0) 1 (5.6) 2 (11.1)
Posttussive emesis 34 (38.6) 1 (5.6) 4 (22.2) 0 (0) 1 (5.6) 2 (11.1)
Breastfeeding difficulties 32 (36.4) 1 (5.6) 3 (16.7) 1 (5.6) 0 (0) 0 (0)
Ruddiness 21 (23.9) 1 (5.6) 1 (5.6) 1 (5.6) 1 (5.6) 1 (5.6)
Stridor 16 (18.2) 0 (0) 1 (5.6) 1 (5.6) 2 (11.1) 1 (5.6)
Diarrhea 15 (17) 0 (0) 3 (16.7) 0 (0) 0 (0) 1 (5.6)
Apnea 9 (10.2) 0 (0) 2 (11.1) 0 (0) 0 (0) 0 (0)
Complications
 Pneumonia 29 (33) 1 (5.6) 5 (27.8) 0 (0) 0 (0) 1 (5.6)
 Acute bronquial obstructive syndrome 18 (20.5) 0 (0) 0 (0) 0 (0) 1 (5.6) 1 (5.6)
 Atelectasis 10 (11.4) 0 (0) 2 (11.1) 0 (0) 1 (5.6) 1 (5.6)
 Convulsions 4 (4.5) 0 (0) 2 (11.1) 0 (0) 0 (0) 0 (0)
 Umbilical hernia 1 (1.1) 1 (5.6) 0 (0) 0 (0) 0 (0) 0 (0)