Mediating effects of illness perception between type D personality and quality of life in patients with acute myocardial infarction / 中华健康管理学杂志

ABSTRACT

Objective:To explore the mediating effect of illness perception between type D personality and quality of life in patients with acute myocardial infarction.Methods:From January 2018 to January 2020, 282 patients with acute myocardial infarction who were hospitalized in the Department of Cardiology, Renmin Hospital of Wuhan University and Zhongnan Hospital of Wuhan University were selected by convenience sampling method and investigated using the type D personality scale, brief illness perception questionnaire, and myocardial infarction multi-dimensional assessment scale.Results:The incidence of type D personality in patients with acute myocardial infarction was 32.27%. The total scores of illness perception and quality of life among myocardial infarction patients with type D personality were (49.10±11.62) and (71.54±7.79), respectively. The total scores of illness perception and quality of life among myocardial infarction patients without type D personality were (35.06±13.39) and (59.24±9.31), respectively. There were significant differences in the total scores of illness perception and for the scores of each dimensions between type D personality and non-type D personality patients with acute myocardial infarction ( P<0.001). The total scores of illness perception and quality of life were (39.59±14.42) and (63.21±10.54), respectively. Type D personality was positively correlated with illness perception ( r=0.456, P<0.01), Type D personality was positively correlated with quality of life ( r=0.546, P<0.01), with illness perception found to be positively correlated with quality of life ( r=0.684, P<0.01). Illness perception played a mediating role in the relationship between type D personality and quality of life in patients with acute myocardial infarction ( β=0.294, P<0.001). Conclusions:As an intermediary variable, illness perception can affect the relationship between type D personality and quality of life in patients with acute myocardial infarction. Therefore, medical staff should pay attention to the personality characteristics of patients and implement targeted nursing intervention measures to improve the illness perception of patients, in order to improve their quality of life.