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AMB Express

Table 3 GMT of HI titers against two lineages of Flu B viruses in sera from children in 2016–2017 and 2017–2018

From: Increasing serum antibodies against type B influenza virus in 2017–2018 winter in Beijing, China

Sera cohorts

B/Yamagataa (95% CIc)

B/Victoriab (95% CIc)

P value

2016–2017 (N = 121)

31.87 (27.56–36.86)

26.44 (21.54–32.46)

0.14

2017–2018 (N = 283)

74.16 (66.39–82.83)

67.57 (60.51–75.44)

0.11

P value

 < 0.01

 < 0.01

 
  1. GMT was calculated based on the HI titer. P values were estimated using nonparametric tests and p values of 0.05 or less are shown in bold
  2. aB/Beijing/BTCH_71/2018 used as the representative of B/Yamagata lineage virus
  3. bB/Jiangxi_Yushui/11102/2014 used as the representative of B/Victoria lineage virus
  4. cCI confidence interval
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