User acceptance evaluation of the Mobile Delirium Assessment App based on CAM-ICU

Abstract

Objective To evaluate the acceptance of the Mobile Delirium Assessment App based on confusion assessment method for intensive care unit (CAM-ICU) nurses. Methods Using the technology acceptance model as the theoretical framework to design the user acceptance questionnaire, 103 ICU nurses were selected by convenient sampling to participate in the study from 5 level three class A hospitals in Beijing from October 2015 to January 2016. Results Effective collected 101 questionnaires showed that the average scores of each dimensions intelligentized CAM-ICU delirium assessment system included perceived usefulness(4.62±0.44)points, perceived ease of use(4.31±0.39)points, perceived ease of adoption(4.28±0.49)points, trust(4.36±0.62)points, attitude toward use(4.46±0.50)points and behavioral intention to use(4.61±0.52)points. There were differences in perceived ease of use, trust and attitude toward use among nurses with different ages and different length of service(P<0.05). Pearson correlation analysis showed a positive correlation between perceived usefulness, perceived ease of use, trust and attitude toward use (P<0.01). A positive correlation was between perceived usefulness, perceived ease of use, attitude toward use and behavioral intention to use (P<0.05). A positive correlation was between perceived usefulness and perceived ease of use (P<0.01). Conclusions The acceptance of intelligentized CAM-ICU is satisfactory in ICU nurses, and which examine the from the simple and ease to use of delirium evaluation system subjective view. With the increasing of age and working years in ICU nurses, the acceptance increase for intelligentized CAM-ICU. Except the ease to learn, the correlation analysis showed the correlations in each dimensions are in accordance of hypnosis of theory model. Key words: Delirium; Nurses; Questionnaires; Tool use behavior; Confusion assessment method for intensive care unit