Influencing factors of self-management ability of coronary heart disease patients after percutaneous coronary intervention and construction of nomogram model
Objective To analyze the influencing factors of self-management ability of coronary heart disease patients after percutaneous coronary intervention(PCI)and construct a nomogram mod-el.Methods A total of 247 CHD patients who underwent PCI were selected as the research sub-jects,and all of them were evaluated by Coronary Heart Disease Self-management Scale(CSMS).Multivariate Logistic regression analysis was used to screen out the independent influencing factors of self-management ability of CHD patientsafter PCI,and R software was used to construct a nomogram model.The discrimination,calibration,and goodness-of-fit of the nomogram model were evaluated by receiver operating characteristic(ROC)curve,calibration curve,and Hosmer-Lemeshow goodness-of-fit test.Results The average CSMS score of 247 patients was(86.79±9.22),and these patients were divided into low-score group(89 patients)and high-score group(158 patients)based on the criti-cal value of 86.79 points.There were significant differences in age,education level,monthly per capita family income,and self-efficacy between the low-score group and the high-score group(P＜0.05).Multivariate Logistic regression analysis showed that age,education level,monthly per capita family in-come,and self-efficacy were independent influencing factors of self-management ability of CHD patients after PCI(P＜0.05).The nomogram model constructed based on the four influencing factors found that age＞70 years increased the weight by 86.2 points,education level below high school increased the weight by 87.4 points,monthly per capita family income＜3 500 yuan increased the weight by 82.3 points,and low self-efficacy increased the weight by 99.6 points.The results of ROC curve a-nalysis showed that the area under the curve of the nomogram model for predicting self-management ability ofCHD patients after PCI was 0.842(95％CI,0.794 to 0.890).The slope of the calibration curve was close to 1,and the results of goodness-of-fit test was as follows:x2=10.226,P=0.233.Conclusion Age,education level,monthly per capita family income,and self-efficacy are influen-cing factors of self-management ability of CHD patients after PCI,and the nomogram model con-structed based on these factors has high predictive value for self-management ability.
coronary heart diseasepercutaneous coronary interventionself-managementnomogram model
万方数据
维普
