| Summary: | Objective To explore the impact of chronic disease resource utilization on health-related quality of life (HRQOL) in patients with myocardial infarction and investigate the mediating role of coping styles between the utilization and HRQOL. Methods Convenience sampling was adopted to select 368 patients with myocardial infarction treated in 2 tertiary hospitals from September 2019 to September 2020. General information questionnaire, Chronic Illness Resource Survey (CIRS), Medical Coping Modes Questionnaire (MCMQ), and Myocardial Infarction Multidimensional Scale (MIDAS-35) were employed to conduct a questionnaire survey on them. The relationship of resource utilization with coping styles and HRQOL was analyzed to further explore the impact of resource utilization on HRQOL. Process macro was used to analyze the mediating role of coping styles between the utilization and HRQOL. Results ① CIRS score was negatively correlated with MIDAS-35 score (r=-0.357, P < 0.001), and positively with MCMQ score (r=0.320, P < 0.001); MIDAS-35 score was positively correlated with MCMQ score (r= 0.326, P < 0.001); ②Regression analysis showed that women, heart function grade IV, myocardial infarction site at the anterior septum, medical coping style and resource utilization were the influencing factors of HRQOL in patients with myocardial infarction, which jointly explained 36.70% of HRQOL in these patients. Among them, the dimensions of resource utilization medical staff (β=-0.121, P=0.011), family and friends (β=-0.107, P=0.041) and community neighborhoods (β=-0.129, P=0.017) positively affected HRQOL in the patients; ③The mediating effect of coping style between resource utilization and HRQOL accounted for 64.48% of the total effect. Conclusion Coping styles play a complete intermediary role between resource utilization and HRQOL. Medical staff can instruct patients to adopt positive coping styles to improve their HRQOL.
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