Development and testing of reliability and validity of the rating scale of pre-hospital delay behavior intention for high risk of acute myocardial infarction

Abstract

Objective To develop a scale for measuring pre-hospital delay behavior intention for high risk of acute myocardial infarction and test its reliability and validity,so as to provide one effective assessment tool for clinic.Methods The scale development of pre-hospital delay behavior intention for high risk of acute myocardial infarction(RSPHDBIHRAMI) was developed based on the framework of theory of planned behavior.First,scale items were constructed by literature reviewing,which further screened by expert evaluation and pilot test.Finally,selected 420 high risk of acute myocardial infarction in Harbin to test the reliability and validity of RSPHDBIHRAMI.Results The rating scale of pre-hospital delay behavior intention for high risk of acute myocardial infarction (RSPHDBIHRAMI) was developed,with good reliability and validity,it composed of six factors ( medical treatment decision-making,symptoms alert,habits of response style,symptoms of the degree of judgment,hinder medical treatment factors and promote medical treatment factors),Cronbach' s coefficients of the scale were 0.744 and the cumulative contribution of variance was 58.694％.Conclusions Psychometric properties analysis showed that the scale has excellent levels of reliability and validity,which not only provide a useful tool for assessment pre-hospital delay behavior intention for high risk of acute myocardial infarction,but also provide assistance for further targeting health education intervene. Key words: Acute myocardial infarction; Pre-hospital delay; Risk factor; Behavior intention; Scale