Table 1 Demographics of participants.

From: BNT162b2 vaccine induced variant-specific immunity, safety and risk of Omicron breakthrough infection in children aged 5 to 11 years: a cohort study

 

Overall

Not infected

Infected

p value

(N = 127)

(N = 43)

(N = 84)

Age on 1st dose

0.608

 Mean (SD)

8.27 (1.95)

8.40 (2.04)

8.20 (1.91)

 

 Median [min, max]

8.00 [5.00, 11.0]

9.00 [5.00, 11.0]

8.00 [5.00, 11.0]

 

Gender

0.915

 Female

62 (48.8%)

22 (51.2%)

40 (47.6%)

 

 Male

65 (51.2%)

21 (48.8%)

44 (52.4%)

 

Race

0.993

 Chinese

94 (74.0%)

34 (79.1%)

60 (71.4%)

 

 Indian

7 (5.5%)

2 (4.7%)

5 (6.0%)

 

 Malay

9 (7.1%)

2 (4.7%)

7 (8.3%)

 

 Others

17 (13.4%)

5 (11.6%)

12 (14.3%)