Table 10 Asymptomatic ratios (in%) with 95% confidence intervals based on combination of symptoms
From: Asymptomatic ratio for seasonal H1N1 influenza infection among schoolchildren in Taiwan
Symptoms | Asymptomatic ratio (%) |
|---|---|
Fever | 65.1 (54.7-75.6) |
Fever + cough | 70.5 (60.6-80.5) |
Fever + (cough or vomiting) | 67.2 (56.9-77.5) |
Fever + (cough or headache) | 63.8 (53.2-74.3) |
Fever + (cough or nose) | 63.9 (53.3-74.4) |
Fever + (cough or vomiting or headache) | 61.2 (50.5-71.9) |
Fever + sore throat | 77.9 (68.8-87.0) |
Fever + ( sore throat or vomiting) | 73.7 (64.1-83.4) |
Fever + ( sore throat or headache) | 71.1 (61.1-81.0) |
Fever + ( sore throat or nose) | 66.7 (56.3-77.0) |
Fever + ( sore throat or vomiting or headache) | 68.9 (58.8-79.1) |
Any symptom | 55.6 (44.7-66.4) |
Fever + (cough or sore throat)* | 66.9 (56.6-77.2) |
Fever + (cough or sore throat or nose) + (headache or pain or fatigue)# | 73.0 (63.3-82.8) |