Background: Prehospital emergency services are one of the main areas of health care, which provide emergency services for patients who experience acute, critical illness or injury outside the hospital. Prehospital services are more often carried out by the Emergency Medical Services (EMS) team, as one of the health service providers who come to the scene more quickly, both in daily emergencies.

Purpose: This study aims to determine the factors related to the application of patient safety culture and determine the most dominant factors in the application of patient safety culture at the prehospital emergency service in Bantaeng.

Results: The results showed that all domains of patient safety culture had a significant effect (p<0.05) namely teamwork 0.000, safety climate 0.000, management perception and support 0.000, job satisfaction 0.019, work environment 0.000 and stress recognition 0.000. The most influential domain is stress recognition 1.116 and Adjust R Square value of 69.7%.

Conclusion: Patient safety needs to be a priority in handling and organizations must continue to evaluate the application of patient safety culture in PSC 119 setting in Bantaeng. Nurses are responsible for improving services that prioritize patient safety by understanding all factors related to the implementation of patient safety culture.

This research is an analytic observational study with a cross sectional. A cross-sectional study is defined as a type of observational research that analyzes variable data collected at one particular point in time across a predefined sample population or subset. The research was conducted at PSC 119 Bantaeng in April 2022. The population of this study amounted to 85 health workers and sampling using the Total Sampling, so that all PSC 119 officers who provide direct services to patients are the samples in this study. The inclusion criteria in the study were all health workers at PSC 119 Bantaeng who served patients directly and the participants were willing to be involved in the study, while the exclusion criteria of this study were health workers who worked as operators, health administration officers and ambulance drivers.

Researchers used two questionnaires sourced from the Emergency Medical Services-Safety Attitudes Questionnaire (EMS-SAQ) which consists of 57 statement items and is divided into six domains or variables, namely teamwork, safety climate, perception and management support, job satisfaction, work environment and stress recognition, and the Hospital Survey on Patient Safety Culture (HSOPSC) with 16 statement items. The items of this statement were translated from English into Indonesian by the researcher and developed to be used as research instruments. Assessment The answer to the statement is in the form of a 5-point Likert scale with a weighted value of one for the answer to the statement strongly disagree, two for the answer to the statement disagree, three for the answer to the statement disagree, four for the answer to the statement agree and five for the answer to the statement strongly agree. This questionnaire has been tested for validity and reliability on 27 officers at PSC 119 Bulukumba and is declared valid to be used, with a value of r count > from r table (0.381) on the independent variable r count of 0.998 and r count on the dependent variable of 0.975, while the reliability test obtained cronbach's negligent of 0.675 (> 0.60) and is considered reliable for use in conducting research. The researcher distributed questionnaires to all participants assisted by the coordinator of PSC 119, after the questionnaire was completed, the instrument was collected back to the coordinator of PSC 119 and handed over to the researcher.

Research data were analyzed using SPSS statistics. Univariate analysis was carried out to describe the characteristics of the respondents consisting of age, gender, education level, type of training that had been attended, and the length of service of officers in the PSC. Bivariate analysis was carried out to see whether or not there was a relationship between the two variables in this study, the variables were teamwork relationships, safety climate, management perception and support, job satisfaction, work environment and the introduction of employee stress on the application of patient safety culture. Before the bivariate analysis process was carried out, the data was tested for normality using the Kolmogorov-Smirnov test. The data in the study were normally distributed (0.200 > 0.05) so that the correlation analysis used Pearson Correlation. Multivariate analysis was conducted with the aim of examining the influence of the independent variables (teamwork, safety climate, management perception and support, job satisfaction, work environment and stress recognition) on the dependent variable (application of patient safety culture). In this multivariate analysis, it is also carried out to see one of the factors in the independent variable that has the strongest relationship to the dependent variable. Multiple linear regression tests are used in this multivariate analysis where more than one independent variable has a relationship with the dependent variable. The requirement in the multiple linear regression test is if the p value which is the result of the bivariate test is less than 0.25 (p value < 0.25).

Before conducting the research, the researcher explained the procedures and research objectives to all participants, after understanding the objectives of the study, participants were asked to sign a consent form to become a respondent. This research has conducted a research service ethics test. Research ethical feasibility testing was carried out by the Health Research Ethics Commission, Faculty of Medicine and Health Sciences, Alauddin State Islamic University (UIN) Makassar. In the ethical test it was stated that this research had passed the ethical test and was eligible to continue the research. This is evidenced by the issuance of a letter from KEPK FKIK UIN Alauddin Makassar with the number C.82/KEPK/FKIK/IV/2022. The ethics of this research include respect for person, beneficence and non-maleficence, and justice.