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. 2020 Sep 24;23(2):507–521. doi: 10.1093/biostatistics/kxaa037

Table 3.

Parameter estimates for a simulated data set with 114 unvaccinated and 127 vaccinated subjects. We evaluate Inline graphic, Inline graphic, and Inline graphic as the immune response covariate.

  IR = Inline graphic IR=Inline graphic IR= Inline graphic
parm est se Wald est seInline graphic WaldInline graphic seInline graphic WaldInline graphic est se wald
Inline graphic 3.68 1.28 2.86 3.28 1.68 1.95 1.70 1.93 2.07 1.20 1.72
Inline graphic Inline graphic 1.64 0.46 Inline graphic 3.54 Inline graphic 1.45 0.58 Inline graphic 2.49 0.60 Inline graphic 2.40 Inline graphic 1.04 0.42 Inline graphic 2.49

Inline graphic Naive standard errors, Inline graphicBootstrap standard errors