Table 1 Baseline children with influenza A and B
From: Platelet distribution width as an useful indicator of influenza severity in children
Characteristic | Influenza A(n = 424) | Influenza B(n = 148) | t/X2 | P value |
|---|---|---|---|---|
age (median ± SD) | 6.42 ± 3.99 | 6.07 ± 3.56 | 0.987 | 0.325 |
sex (male/female) | 259/165 | 93/55 | 0.142 | 0.706 |
Clinical symptoms | Â | Â | Â | Â |
 Laryngopharyngitis, no.(%) | 273(64.4) | 96(64.9) | 0.011 | 0.917 |
 Fever,no.(%) | 330(77.8) | 106(71.6) | 2.33 | 0.127 |
 Bronchitis,no.(%) | 107(25.2) | 60(40.5) | 12.43 | < 0.0001 |
 Cough,no.(%) | 171(40.3) | 48(32.4) | 0.003 | 0.956 |
 Gastroenteritis, no.(%) | 86(20.3) | 30(20.3) | 0 | 0.997 |
 Other Influenza symptoms,no.(%) | 184(43.4) | 44(29.7) | 8.548 | 0.003 |
 Amygdalitis,no.(%) | 8(1.9) | 7(4.7) | – | 0.075 |
 Pneumonia,no.(%) | 40(9.4) | 23(15.5) | 4.174 | 0.041 |
 Other serious symptoms,no.(%) | 36(8.5) | 3(2.4) | 7.214 | 0.007 |