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. Author manuscript; available in PMC: 2012 Nov 21.
Published in final edited form as: Stat Commun Infect Dis. 2011 Oct;3(1):1037. doi: 10.2202/1948-4690.1037

Table 5.

Analysis of VE by Time Interval in the Vax004 Trial.

VE Parameter Estimated VE* 95% Confidence Interval p-value
VE(0-3) -21% -244% to 57% 0.72
VE(0-6) 31% -14% to 58% 0.14
VE(0-9) 30% -3% to 52% 0.07
VE(0-12) 23% -8% to 46% 0.13
VE(0-15) 17% -13% to 39% 0.24
VE(0-18) 10% -20% to 33% 0.48
*

Based on a proportional hazards model for infections diagnosed within the specified time-interval.