Fig. 7

Principle component analysis (PCA) of the final weighted score, based on the weighted score of the six criteria groups for the 98 diseases. The orientation of the criteria groups are plotted as arrows on the two first principle components (a). The criteria ‘incidence’ and ‘trend’ are here considered as separate criteria groups. Each disease is represented by a dot (a) or an abbreviation of the disease name (b), of which the colours indicate the thematic disease groups. The scatter of the 98 diseases in the first two principle components shows clustering of the thematic disease groups. The classification of diseases in the thematic disease groups and disease labels are equal to that shown below Fig. 5