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Figure 2 (A) Mean values of psychological distress (as assessed by the Modified Maastricht Questionnaire, self- and relative-evaluation tests) in the five subgroups identified by cluster analysis in the whole study population, including both cardiac patients and controls. In the graph values of self- and relative-evaluation have been multiplied by 10. MMQ = Modified Maastricht Questionnaire. (B) Percentage of cardiac patients in the five clusters. Under each cluster the determinants of psychological distress prevalent in that subgroup are reported. Avoid = avoidance, SB = self blame, LE = life events, SS = social support. The first cluster had lower values of psychological distress and lower values of all determinants of distress, and a lower prevalence of cardiac patients. The other four clusters had similar prevalence of cardiac patients, although higher values of psychological distress were observed in the cluster with a higher level of all determinants of distress (cluster 5).
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