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Table 1 Characteristics of patients with and without laboratory-confirmed pertussis

From: Diagnostic value of symptoms and laboratory data for pertussis in adolescent and adult patients

Characteristics Laboratory-confirmed pertussis No laboratory-confirmed pertussis p- value
Number 183 1132  
Age mean (range), years 39.1 (16–77) 37.6 (16–79) 0.3189
Male : Female 73 : 110 501 : 631 0.2965
Symptom*    
  Paroxysmal cough 165 (90.1) 849 (75.0) <0.0001
  Awakened by cough 133 (72.6) 747 (65.9) 0.0760
  Sputum production 67 (36.6) 378 (33.3) 0.4006
  Chest pain 66 (36.0) 382 (33.7) 0.5566
  Dyspnea 56 (30.6) 297 (26.2) 0.2423
  Posttussive vomiting 46 (25.1) 228 (20.1) 0.1407
  Posttussive gagging 90 (49.1) 259 (22.8) <0.0001
  Inspiratory whoop 36 (19.6) 156 (13.7) 0.0420
  History of fever (≥37.0°C) 27 (14.7) 234 (20.6) 0.0718
Upper respiratory tract infection symptoms before cough 83 (45.3) 561 (49.5) 0.3011
Exposed to cough by family member or work/school colleague* 97 (53.0) 273 (24.1) <0.0001
Hospitalization* 1 (0.5) 10 (0.8) >0.9999
Laboratory data    
  WBC mean number ± SD, /mm3 6,619 ± 2,815 7,034 ± 2,622 0.1925
Lymphocyte mean number ± SD, /mm3 2,043 ± 892 2,211 ± 973 0.1244
  1. *Data represent the numbers (%) of patients.