Table 1 Characteristics of patients presenting with viral infections.

N

722

2213

482

Age (years)^a

67 (28)

73 (26)

79 (18)

P < 0.001

Sex (% males)

57.6

48.3

46.4

P < 0.001

Charlson comorbidity index^a

3 (4)

4 (4)

5 (3)

P < 0.001

Vital signs

Body temperature^a (℃)

37.4 (1.2)

37.1 (1.1)

37 (1.1)

P < 0.001

Heart rate^a (beats/min)

86 (23)

92 (26)

88 (26)

P < 0.001

Systolic BP^a (mmHg)

134 (30)

134 (34)

141 (38)

P < 0.001

Diastolic BP^a (mmHg)

76 (19)

74 (18)

74 (22.75)

P < 0.005

Oxygen saturation^a (%)

96 (5)

97 (26)

96 (5)

P = 0.074