Background
Antibiotic resistance is one of the most serious global issues, in which physician's rational prescribing plays critical role. However, the determinants of physician's antibiotic use are still inconclusive, particularly in low- and middle income countries (LMICs). This study aimed to measure physician's knowledge and five important sub-attitudes toward antibiotic prescriptions and their impacts on prescribing.
Methods
A questionnaire survey was conducted on 625 physicians from 67 primary care facilities in Hubei of China. Structural equation modelling (SEM) was applied to test the theoretical framework derived from the theory of Knowledge, Attitudes and Practices (KAP). The attitudes (5 subscales) and behavioral intentions (3 subscales) were measured using a five-point Likert scale ranging from -2 to +2, with a negative score indicating disapproval and a positive score indicating approval of efforts for reducing antibiotic prescriptions.
Results
The study participants had a low level of knowledge about antibiotic prescriptions, giving an average of 54.55% correct answers to 11 questions. Although they were generally concerned about antibiotic resistance resulting from over-prescriptions (Mean of Ignorance=1.28, SD=0.43), and were reluctant to be submissive to pressures from consumer demands for antibiotics (Mean of Complacency=1.29, SD=0.65) and the requirements of defensive practice (Mean of Fear=1.11, SD=0.63), there was a lack of motivation to change prescribing practices (Mean of Indifference=-0.29, SD=0.70). In addition, there was strong agreement that other stakeholders should take the responsibility (Mean of Responsibility Avoidance=-1.15, SD=0.45). The SEM results showed that poor knowledge was a significant predictor (p<0.001) of high intentions to prescribe antibiotics for upper respiratory tract infections and a less positive attitude toward concerns about antibiotic resistance (ignorance) which was also associated with intentions to prescribe antibiotics. However, knowledge was not connected with the negative attitude toward motivation (indifference), a significant predictor (p<0.001) of intentions to refuse to reduce antibiotic prescriptions.
Conclusion
Physicians in primary care facilities in Hubei have low levels of knowledge about antibiotic prescriptions. But actions for improving knowledge by itself is not enough to curb over-prescriptions of antibiotics. The lack of motivation of physicians to change prescribing practices needs to be addressed through a systems approach.