Objective: To measure clinicians’ perceptions of barriers and facilitators to
the adoption of a Computerised Decision Support System (CDSS) for antibiotic
approval, and to examine the correlation between these perceptions and actual
usage of the system by clinicians.
Methods: This study was conducted in a tertiary care university hospital of
Melbourne, Australia. A survey tool comprising of demographic items and newly
developed scales to measure clinicians’ perceptions of barriers and facilitators
to use of an CDSS was developed. Cross-sectional mail surveys were sent to 250
Junior and Senior Medical Staff and Pharmacists in a tertiary care hospital.
Cronbach’s alpha was used to measure the reliability of the perceptions scales.
One way ANOVA was used to assess the differences between participants’
responses; Tamhane’s test was used for post-hoc analysis. Pearson correlations
were used to measure the relationship between the participants’ scores on the
scales and their actual use of the CDSS under study.
Results: The overall survey response rate was 54%. Cronbach’s alpha for the
perceived barrier and facilitator scales were 0.80 and 0.88, respectively.
Senior medical staff perceived significantly more barriers than junior medical
staff and pharmacists. Statistically significant differences were observed
between the scores of the participants on a number of items on the perceived
barriers and facilitators scales. Negative correlations were observed between
the participants’ scores on the perceived barriers scale and their use of the
system. (r= -0.415, p= 0.001).
Conclusions: The scales to measure perceived barriers and facilitators to
adopt antibiotic CDSS have shown acceptable reliability and validity measures.
Important differences exist between senior and junior medical staff about the
barriers and facilitators to adopting the CDSS which may influence future use by