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Fig. 1 | Intensive Care Medicine Experimental

Fig. 1

From: Comparison of an automatic analysis and a manual analysis of conjunctival microcirculation in a sheep model of haemorrhagic shock

Fig. 1

Bland-Altman plots for a total vessel density and b perfused vessel density (each n = 85). Bland and Altman recommended plotting the mean of two measurement methods against the difference of both [17]. Continuous line represents the mean difference whereas upper and lower dashed lines represent the limits of agreement (LOA) (equivalent to ±1.96 SD of mean difference). Bland-Altman plots have to be inspected visually. Mean difference represents the mean bias between measurements. LOA are a measure of dispersion between both methods. The evaluator has to decide whether these values are acceptable in the context of the measured variable. TVD total vessel density, PVD perfused vessel density, SD standard deviation, LOA limits of agreement

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