Figure 2From: Development and validation of a classification approach for extracting severity automatically from electronic health records Severity measure correlation matrix. Histograms of each severity measure shown (along the diagonal) with pairwise correlation graphs (lower triangle) and correlation coefficients and p-values (upper triangle). Notice the condition length is the least correlated with the other measures while number of medications and number of procedures are highly correlated (r = 0.88, p < 0.001).Back to article page