Figure 6From: A retrospective analysis of caries treatment and development in relation to assessed caries risk in an adult population in Sweden PCA clustering of subjects by alteration in caries risk scoring over the seven-year study period. PCA score plots clustering subjects who (a) did or did not maintain their caries risk score over the seven-year study period if having low/no risk in 2005 or (b) who did or did not improve their caries risk score over the seven-year study period if having high risk in 2005. The model explanatory power (R2) was 33.5% and 32.4% for a) and b), respectively, and the predictive power (Q2) was 22.1% and 24.0% for a) and b), respectively.Back to article page