Figure 4.

Scatterplot of linear predictor against SWCS. This figure plots the linear predictor against the log(SWCS +1). Red circles indicate data points for those participants whose AS = 0, and blue indicates those whose AS > 0. Smoothed curves are also presented to further illustrate the association between these two measures for AS = 0 (red), AS > 0 (blue) and all (purple). The red and blue vertical lines at the bottom and top of the plot indicate the distributions of the log(SWCS +1) for participants with AS = 0 and AS > 0, respectively.

Liang et al. BMC Medical Imaging 2012 12:14   doi:10.1186/1471-2342-12-14
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