A survey tool for pressure ulcer prevention:Development and assessment of its reliability and validity / 医学研究生学报

ABSTRACT

Objective This paper aims at developing a survey tool for pressure ulcer prevention and testing its reliability and validity. Methods Through reviewing the domestic and foreign literatures and discussing repeatedly, item pool for pressure ulcer prevention and initial survey tool were developed.3 rounds of Delphi consultation were used to acquire experts′opinions for amending, perfecting the survey tool and calculating the content validity index. Investigations were performed by 70 nurses who were trained with the cross sectional survey on pressure ulcer prevention of 2047 patients from a top three hospital. The consistency reliability and con-struct validity of survey tool were then analyzed based on the survey results. Results The positive coefficient of experts in the 3 rounds of consultation were all 100%. The authority degree of the experts was 0.830. The coefficient of variation in the 3 rounds of con-sultation were 0.000-0.241,0.000-0.235 and 0.000-0.234 respectively. Kendall′s coefficient of concordance W were 0.115,0.174 and 0.214(P<0.001). The content validity index was 0.954. The Cronbach′s alpha was 0.824 from 2047 patients investigated by the 70 nurses. Exploratory factor analysis got two common factors which explained 75.351% of the total variance. The factor loading was 0.585-0.857(>0.400) respectively. Conclusion The survey tool for pressure ulcer prevention has good reliability and validity. It can be used to investigate pressure ulcer prevention of Chinese hospitalized patients.