Conscience-Based Barriers to Medical Aid in Dying: A Survey of Colorado Physicians.

BACKGROUND: Approximately 20% of the United States' population lives in a state or jurisdiction where medical aid in dying (MAiD) is legal. It is unknown how physicians' own barriers are associated with their provision of the spectrum of MAiD services.

OBJECTIVE: To measure physicians' religious and/or ethical barriers to providing MAiD services and how such barriers relate to physicians' intentions and behaviors.

DESIGN: Three-wave cross-sectional survey fielded in Colorado in 2020-2021.

PARTICIPANTS: Physicians providing care to patients likely clinically eligible for MAiD according to probabilistic sampling.

MAIN MEASURES: Physicians self-reported barriers to their own participation in MAiD. We considered large ethical and/or religious barriers to be conscience-based barriers. We measured physicians' self-reported intention to participate and self-reported prior participation in MAiD since it was legalized in Colorado in 2017. We estimated differences in intention and behavior outcomes according to presence of conscience-based barriers, adjusting for physician gender, race/ethnicity, time in practice, and specialty.

KEY RESULTS: Among 300 respondents, 26% reported "large" ethical and/or religious barriers to their involvement in MAiD. Physicians with longer time in practice and those identifying as non-White were more likely to report conscience-based barriers to MAiD. Comparing physicians with and without conscience-based barriers to MAiD, we found no difference in ancillary participation (discussing, referring) but significant differences in direct participation (serving as consultant [5% vs. 31%] or attending [0% vs. 22%]).

CONCLUSIONS: Approximately one-quarter of physicians likely to care for MAiD-eligible patients in Colorado reported religious and/or ethical barriers to MAiD. Despite religious and/or ethical barriers, the vast majority of physicians were willing to discuss MAiD and/or refer patients seeking MAiD services. These data provide important empirical foundation for policy from hospitals and health systems as well as medical specialty groups with official positions on MAiD.