Skip to main content

Table 3 Comparison of immunogenicity of 2010-2011 influenza vaccines against H1N1 pdm09 between infection-primed group and vaccine-primed group in subjects less than 8 years of age

From: The priming effect of previous natural pandemic H1N1 infection on the immunogenicity to subsequent 2010-2011 influenza vaccination in children: a prospective cohort study

 

IP (n = 46)

VP (n = 66)

P value

Split/subunit ratio

 

32/14

44/22

0.749

Mean age

 

4.90 (±1.76)

5.17 (±1.77)

0.414

Seroprotection (%)

Baseline

47.83 (22/46)

50.0 (33/66)

0.823

1 month

69.57 (32/46)

78.79 (52/66)

0.283

6 months

65.85 (27/41)

56.00 (28/50)

0.344

Seroconversion (%)

 

47.83 (22/46)

40.91 (27/66)

0.472

GMT (95 % CI)

Baseline

27.03 (22.77–31.29)

24.67 (20.36–28.99)

0.620

1 month

80.00 (62.62–97.38)

61.53 (50.70–72.35)

0.392

6 months

37.38 (30.03–44.74)

31.17 (24.22–38.11)

0.481