Table 1 Characteristics of older ED patients with influenza in this study

Age (years)

76.61 ± 7.44

 Young elderly (65–74)

43.06

 Moderately elderly (75–84)

40.56

 Old elderly (≥85)

16.38

 Female

50.67

 Male

49.33

 GCS

14.41 ± 1.84

 SBP (mm Hg)

142.88 ± 32.77

 Heart rate (beats/min)

93.38 ± 24.24

 Respiratory rate (breaths/min)

19.16 ± 3.94

 Body temperature (°C)

37.53 ± 6.64

 Hypertension

56.05

 Diabetes

32.37

 COPD

12.87

 CAD

19.64

 CVA

18.77

 Malignancy

14.32

 CHF

11.27

 Dementia

10.62

 Bedridden

31.94

 WBC (cells/mm³)

8670.00 ± 4220.00

 Bandemia (%)

4.10 ± 5.24

 Hemoglobin (mg/dL)

12.42 ± 1.95

 Platelet (10³/mm³)

187.36 ± 72.39

 Creatinine (mg/dL)

1.29 ± 1.52

 hs-CRP (mg/dL)

42.06 ± 50.98

 Sodium (mEq/L)

134.68 ± 4.86

 Potassium (mmol/L)

3.76 ± 0.52

 GOT (U/L)

51.55 ± 172.64

 GPT (U/L)

31.79 ± 64.43

 Hospitalization

47.33

 Pneumonia

37.71

 Sepsis or septic shock

5.57

 ICU admission

1.07

 In-hospital mortality

2.20