Results From a Previous Systematic Review of the History and Physical Examination for the Diagnosis of Influenza
| Likelihood Ratio for Influenza | ||
|---|---|---|
| Clinical Finding | Positive | Negative |
| Note: Data from Ebell et al.2 | ||
| Rigors | 7.2 | 0.9 |
| Sweating | 2.9 | 0.6 |
| Being confined to bed | 2.5 | 0.5 |
| Inability to cope with daily activities | 2.3 | 0.4 |
| Fever (subjective) | 1.7 | 0.5 |
| Absence of systemic symptoms | 1.5 | 0.4 |
| Headache | 1.3 | 0.6 |
| Cough | 1.3 | 0.4 |
| Myalgia | 1.3 | 0.6 |
| Nasal congestion | 1.2 | 0.7 |
| Chills | 1.1 | 0.7 |
| Sore throat | 1.1 | 0.9 |
| Sputum | 1.1 | 0.9 |