Science and technology are changing in high speed, and new medical devices being put into use have posed new challenges to physicians' medical skills. The rapid increase in social economic production has raised the overall standard of living of the public, and the innovation in medical services cannot fully meet the surging demand of patients for medical services, forming a new conflict in the physician-patient relationship that needs to be alleviated [15, 19]. Risk of the physician-patient relationship (PPR) has become a current research hotspot in the field of social health. PPR is an objectively formed interaction between physicians and patients in the process of medical services, which is the most fundamental of medical interpersonal relationships [24]. Due to the differences in professional environment and subjective conditions between physicians and patients, different expressions and communication skills, it is easy to generate cognitive misalignment and cause various conflicts [26]. The White Paper on the State of Physician Practice in China shows that 66% of physicians in China have personally experienced incidents of physician-patient conflict, 51% of physicians have suffered from verbal violence, and over 30% have experienced violent treatment by patients [3]. How to mitigate or avoid risks of PPR is still an urgent research topic to be addressed today.
Risk perception, which reflects people's cognitive mapping and intuitive judgments of risk, belongs to the category of psychology and was first proposed by Professor Bauer of Harvard University in 1960 [1] and applied to study consumer behavior. There are many definitions of this concept, such as the studies and researches by Paschal Sheeran, Eva Janssen, Fang Lei, Emilie Michalovic, and others [14, 11, 7, 13], who pointed out that risk perception is an individual's judgment and assessment of a specific risk through previous experiences. Therefore, risk perception theory can play an equally important role in the study of the causes of physician-patient risk events and the quantification of risk levels. Integrating various views, we believe that perceived risk can be partially expressed by risk perception variables, which form people's feelings and intuitive judgments about potential risks based on individual subjective experiences. This study is based on risk perception theory and is innovative in exploring a tool for measuring perceived risk of PPR.
In terms of perceived risk measurement, the main focus is on the topic of PPR, which is mainly based on two perspectives: physician and patient. For example, Xue Yuxin et al [22] conducted a review of domestic PPR measurement tools and concluded that trust, loyalty, respect, communication skills, and responsibility are the main measurement dimensions of PPR. The core dimensions of PPR in the narrow sense are physician-patient trust, physician-patient communication, medical technology and service awareness [12]. Foreign scholars have developed PPR scales from different perspectives. Eveleigh RM et al [6] comprehensively analyzed 19 PPR scales, among which, 16 scales were measured from the patient perspective, two scales were measured from the observer perspective, and only one scale (DDPRQ-10) was measured from the physician perspective. The main representative of the scale of the physician's perspective is the DDPRQ-10, a concise scale of poor PPR designed by Hahn SR [10] in 1996 based on the DDPRQ-30. Most domestic measures of PPR have been studied using qualitative research or self-administered questionnaires, and there are no uniform standards [18]. Although Yang Hui et al [23] conducted a scale design in our context based on the DDPRQ-10, the scope of use was limited and the scale reliability and validity needed to be further tested. Ma Shaozhuang et al [12] concluded that the development of a scale suitable for PPR in the Chinese context is pending. Measurement studies that directly address the topic of perceived risk of PPR have not been found. Physicians' perceptions and intuitive judgments of risks in PPR are not only influenced by risk perceptions, but also easily subject to external information. The level of physicians' perception of risk may act as a mediating factor affecting their work attitudes, behaviors, and physical and mental health, thus affecting work quality and even triggering a series of problems such as reduced job satisfaction, psychological stress, and increased propensity to leave [5, 17]. At the same time, whether risks occur may depend on the individual's subjective experience of their perception [20]. Therefore, it is urgent to conduct research on the issue of perceived risk in the medical field from the perspective of protecting physicians.
The physicians' perceived risk of physician-patient relationship (PPRPPR) proposed in this paper refers to physicians' subjective perceptions of the probability of occurrence and severity of various potential risks that may trigger discord between physicians and patients during the treatment process based on their subjective experiences. In recent years, a great deal of research has been conducted at home and abroad on how to "ensure patient safety", but relatively little research has been conducted on the safety of physicians, who are the key players in ensuring patient safety. Moreover, most of these studies are conducted from the perspective of "bystanders" to assess the actual risks in physicians' profession, while physicians themselves, as "insiders", their own perceived risk status of PPR, factors affect their perceived risk level, and the extent to which perceived risks affect their work behavior, these questions are all need to be explored in depth [27]. Therefore, this study develops a PPR risk measurement questionnaire from the physician's perspective to provide a reliable measurement tool for quantitative research on PPR in China, and as a supplement to existing qualitative research, it can lay a theoretical foundation for quantitative control of risk of PPR, improving PPR and building a harmonious society. Physicians in this study included doctors, nurses, and medical staff who have direct contact with patients/families during the course of disease treatment.