Figure 1From: Ground Anthrax Bacillus Refined Isolation (GABRI) method for analyzing environmental samples with low levels of Bacillus anthracis contaminationBland Altman difference plot indicating agreement between G.A.B.R.I and classic tests. The mean difference is −282.1 percentage points with 95% confidence interval −377.8 to −186.5 (Standard Deviation = 350.6). The limits of agreement are: Upper agreement limit = 419.1 (95% CI: 253.3 - 584.8 ) and Lower agreement limit = −983.3 (95% CI: -1149.1 - -817.6 ).Back to article page