Table 4

Symptoms and clinical characteristics at presentation

p Value
Patient characteristicsFN group (n=15†)TP group (n=43)TN group (n=21)FN vs TPFN vs TN
Temperature (°C)
 Mean38.2±0.838.0±0.737.6±0.80.5930.043*
Temperature (°C)n (%)n (%)n (%)
 ≤37.42 (13.3)8 (18.6)9 (42.9)
 37.5 to 38.05 (33.3)15 (54.9)7 (33.3)
 ≥38.18 (53.3)20 (46.5)5 (23.8)
Symptoms
 Sore throat11 (73.3)32 (74.4)14 (66.7)1.0000.729
 Arthralgia/myalgia6 (40.0)22 (51.2)10 (47.6)0.5540.741
 Headache7 (46.7)13 (30.2)6 (28.6)0.3450.310
 Chills7 (46.7)16 (37.2)3 (14.3)0.5530.058**
 Cough/throat phlegm9 (60.0)25 (58.1)10 (47.6)1.0000.516
 Nasal discharge2 (13.3)15 (34.9)6 (28.6)0.1180.424
  • *p<0.05.

  • **0.05<p<0.1.

  • †Excluded one patient with bacterial pneumonia who developed after influenza viral infection.

  • FN, false negative; TN, true negative; TP, true positive.