Figure 2

Type I error rates Plot of type I error rates for the adjusted test versus the unadjusted test at varying covariate risk levels. The legend lists the odds of disease, given exposure to the covariate, at each point. The type I error rates are not significantly different from 5% for either the adjusted or unadjusted test (p > 0.5). Likewise, the error rates are not significantly different between tests (p = 0.71).