Background In long-term care, registered nurses and other care providers often experience tensions between ideals and realities in the delivery of services, which can result in stress of conscience. Burnout, low quality of care and a tendency to leave the profession are perceived as consequences. Objectives This study aimed to identify the socio-demographic and work-related factors associated with a high level of stress of conscience, particularly between nursing occupations. Research design A cross-sectional survey was conducted among care providers who worked (...) in Norwegian nursing homes and home care services in the spring of 2021. The sample consisted of 950 registered nurses and 1143 other care providers. Data were collected online using the Stress of Conscience Questionnaire (SCQ). Ethical considerations Participation was voluntary and based on consent. The study was approved by the Norwegian Center for Research Data. Results Registered nurses were nearly twice as likely to report high levels of stress of conscience compared to other care providers in long-term care. In addition, being a female, living alone, caring for their own children, working in an institution (versus home based), working >75% time, working shifts, not having scheduled meetings for ethical reflection and working in municipalities with a higher population density were factors associated with a high level of SCQ score. Discussion Knowledge of factors that increase the risk of high SCQ scores in registered nurses provides opportunities for prevention. Managers in long-term care should pay more attention to how work is distributed between the occupational groups and should facilitate real opportunities for ethical reflection. Conclusions The results of this study show that registered nurses have particular exposure to high levels of stress of conscience compared to other care providers in long-term care. Particular attention should be paid to registered nurses working in nursing homes. (shrink)