PURPOSE: This cross-sectional study was designed to identify anger-expression types in late school-age children and investigate the relation between the identified anger-expression types and their health status. METHOD: One thousand twenty seven children in elementary school fifth and sixth grades were recruited from November to December, 2004. Data was analyzed using descriptive statistics, cluster analysis, 2-test, ANOVA, Duncan's multiple comparison test, and Wilcoxon rank sum test. RESULTS: Three anger-expression types in late school-age children were found; Anger-out/in, Anger-control, and Low anger-expression types. Children frequently using the anger-out/in type among the three types and with a higher state anger reported higher psychosomatic symptoms and depression. Children from a divorced or separated family reported higher state anger. CONCLUSION: This study suggests that a specific anger management program needs to be developed for late school-age children with high state anger and frequently using the anger out/in expression type. For understanding the anger level and the anger expression types of Korean school-age children, further research needs to be done with large samples using a randomized sampling method.
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