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Table 2 Comparison of underlying disease and DTaP vaccination according to clinical diagnosis in 248 students with confirmed vaccination records

From: Pertussis outbreak in university students and evaluation of acellular pertussis vaccine effectiveness in Japan

Characteristics Total No symptom (n = 133) Suspected case (n = 77) Probable case (n = 38) P-value*
(n = 248) n (%) n (%) n (%)  
Department Medicine 156 76 57.1 51 66.2 29 76.3 0.0075
  Nursing 92 57 42.9 26 33.8 9 23.7  
Grade 1 133 64 48.1 47 61.0 22 57.9 0.1652
  2 115 69 51.9 30 39.0 16 42.1  
Sex Male 102 53 39.8 30 39.0 19 50.0 0.4784
  Female 146 80 60.2 47 61.0 19 50.0  
History Allergic rhinitis 59 35 26.3 18 23.4 6 15.8 0.4032
  Anemia 30 15 11.3 9 11.7 6 15.8 0.7474
  Food Allergy 12 7 5.3 3 3.9 2 5.3 0.8979
  Heart disease 2 2 1.5 0 0.0 0 0.0 0.4182
  Liver disease 1 1 0.8 0 0.0 0 0.0 0.6479
  Renal disease 4 4 3.0 0 0.0 0 0.0 0.1724
  Diabetes 1 1 0.8 0 0.0 0 0.0 0.6479
  None 90 48 36.1 32 41.6 10 26.3 0.2778
Vaccination record for DTaP vaccine          
  No 3 1 0.8 1 1.3 1 2.6 0.0742
  1 shot 4 2 1.5 2 2.6 0 0.0  
  2 doses 2 0 0.0 0 0.0 2 5.3  
  3 doses 14 5 3.8 5 6.5 4 10.5  
  4 doses 225 125 94.0 69 89.6 31 81.6  
  1. DTaP: diphtheria, tetanus, and pertussis.
  2. *Chi-square test or Fisher’s exact test.