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| Figure 3: Bland-Altman analysis of the quantitative results. The vertical axis represenst the VL differences (the Abbott method minus the Roche method) and the horizontal axis represenst the means of VL. Each data point represents one of the paired 173 quantifiable plasma samples. The solid line indicates the mean difference between the values and the dotted lines indicates the mean ± SD 1.96 (95% limits of agreement). The number of samples within this range was 165 (95.4%). |
