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. Author manuscript; available in PMC: 2018 Oct 13.
Published in final edited form as: Vaccine. 2017 Sep 12;35(43):5819–5827. doi: 10.1016/j.vaccine.2017.09.025

Table 4.

Oral cholera vaccine effectiveness for two doses, versus none, in rural Haiti, data multiply imputeda

Adjusted RR [95% CI] Adjusted vaccine effectiveness, %
[95% CI]		 p-value
Cholera vaccine effectiveness case-control study N=181 N=716
  Self-reported vaccination 0.27 [0.17 – 0.45] 73 [55 – 83] <0.0001
  Verified vaccination 0.26 [0.14 – 0.49] 74 [51 – 86] <0.0001
Bias-indicator case-control study
  Self-reported vaccination 0.63 [0.38 – 1.04] 37 [−4 –62] 0.07
  Verified vaccination 0.69 [0.38 – 1.25] 31 [−25 –62] 0.22
Test negative design
  Self-reported vaccination 0.27 [0.12 – 0.61] 73 [39 – 88] 0.002
  Verified vaccination 0.31 [0.10 – 0.91] 69 [9 – 90] 0.03
a

Analyses adjusted for the same variables shown in Table 2