Table 7 Univariate analysis of influenza-like symptoms for grade stratification
From: Asymptomatic ratio for seasonal H1N1 influenza infection among schoolchildren in Taiwan
Symptom | Seroconversion for Influenza | Tested Negative for Influenza | P-value |
|---|---|---|---|
Grades 1-3 | n = 39 | n = 52 | |
Fever | 29 (74.4%) | 17 (32.7%) | <.0001 |
Sore throat | 16 (48.5%) | 14 (33.3%) | .2370 |
Cough | 31 (86.1%) | 30 (63.8%) | .0261* |
Headache | 16 (48.5%) | 6 (13.6%) | .0018* |
Vomiting | 9 (31.0%) | 4 (10.0%) | .0341* |
Running nose | 23 (76.7%) | 41 (87.2%) | .3497 |
Stomach upset | 4 (15.4%) | 3 (7.7%) | .4240 |
Grades 4-6 | n = 41 | n = 107 | |
Fever | 24 (58.5%) | 19 (17.8%) | <.0001* |
Sore throat | 21 (65.6%) | 34 (38.6%) | .0125* |
Cough | 28 (80.0%) | 74 (77.1%) | .8152 |
Headache | 15 (53.6%) | 20 (25.6%) | .0100* |
Vomiting | 8 (33.3%) | 7 (9.9%) | .0191* |
Running nose | 32 (86.5%) | 72 (77.4%) | .3327 |
Stomach upset | 6 (25.0%) | 8 (11.0%) | .1033 |