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. Author manuscript; available in PMC: 2018 Apr 23.
Published in final edited form as: J Infect. 2017 Sep 18;75(5):381–394. doi: 10.1016/j.jinf.2017.09.010

Table 4.

Pooled vaccine effectiveness (VE) against influenza hospitalizations among adults by season.

Vaccine type Pooled VEa (%) 95%CI Number of VE estimates p-value for heterogeneity
Any influenza
2009–10 pandemic 72 22;100 3 0,286
2010–11 seasonal 43 34;52 6 0,613
2011–12 seasonal 31 12;49 5 0,143
2012–13 seasonal 39 29;48 4 0,824
2013–14 seasonal 53 45;61 6 0,704
2014–15 seasonal 31 15;47 9 0,003
a

And 95% confidence interval in parentheses.