Table 1 Baseline characteristics of patients with Omicron BA.5

Age

(mean ± SD)

40.6 ± 12

63.3 ± 18

45.3 ± 16.5

< 0.0001^a

Gender

n (%)

Male

53 (36.6)

27 (56.3)

80 (41.5)

< 0.0001^b

Female

92 (63.4)

21 (43.8)

113 (58.5)

Worst day of symptoms (mean ± SD)

2.5 ± 1.1

1.7 ± 0.9

2.4 ± 1.2

< 0.0001^a

Symptomatic days (mean ± SD)

5.4 ± 2.3

6.2 ± 1.5

6.8 ± 2.4

0.03^a

Underlying condition n (%)

Hypertension

15 (10.3)

16 (33.3)

31 (16.1)

< 0.001^b

Diabetes mellitus

6 (4.1)

13 (27.1)

19 (9.8)

< 0.001^b

Ischemic heart diseases

5 (3.4)

14 (29.2)

19 (9.8)

< 0.001^b

Malignant disease

8 (5.5)

11 (22.9)

19 (9.8)

< 0.001^b

Hypothyroidism

9 (6.2)

4 (8.3)

13 (6.7)

0.740^b

Chronic lung diseases

4 (2.8)

0 (0.0)

4 (2.1)

0.574^b

Pregnancy

3 (2.1)

1 (2.1)

4 (2.1)

0.575^b

None

97 (66.9)

6 (12.5)

29 (14)

Vaccination status n (%)

Unvaccinated

5 (3.4)

13 (27.1)

18 (9.3)

< 0/0001^b

First visit vital signs (mean ± SD)

Pulse rate

(beats/minute)

94.2 ± 16.7

108.8 ± 19.3

101.9 ± 19.5

< 0.0001^a

Respiratory rate

(breaths/minute)

18.4 ± 5.1

20.4 ± 4.6

19.3 ± 4.9

0.011^a

Systolic blood pressure (mmHg)

109.4 ± 25.9

123.5 ± 18.9

119.3 ± 2.0

0.018^a

Temperature (°C)

37.6 ± 0.8

38.0 ± 1.2

37.9 ± 1.1

0.04^a