However, in multivariate analyses adjusting for <i>Staphylococcus aureus</i> infection and epidural abscess we observed only weak and nonsignificant associations between CRP values and treatment failure (odds ratios, 1.02 for median last CRP value [<i>P</i> = .06] and 0.99 for median percent difference (<i>P</i> = .11).<h4>Conclusions</h4>Serial CRP measurements were only weakly associated with treatment failure in NVO. Here, CRP is linked to epidural abscess.