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Table 4 Clinical assessment of symptomatic contact cases at inclusion

From: Hospital-based prospective study of pertussis in infants and close contacts in Tehran, Iran

Symptoms reported at inclusion N =36
Duration of cough (days) median (IQR) 17.5 (9–32)
 ≥ 7 n (%) 31 (86.1)
 ≥ 14 n (%) 20 (55.6)
Nocturnal cough a n (%) 15 (42.6)
Coughing spells a n (%) 16 (45.7)
Apnea a n (%) 0 (0)
Cyanosis a n (%) 0 (0)
Inspiratory whoop a n (%) 1 (2.9)
Difficult breathing in a n (%) 3 (8.6)
Vomiting a n (%) 0 (0)
Post tussif vomiting a n (%) 1 (2.9)
Good conditions btw cough a n (%) 20 (57.1)
  1. a n = 1 with no information available