Focus on patient perspectives in climate action policies for healthcare. A German survey analysis on what patients are willing to do.

Background: The healthcare sector, while dedicated to improving health, paradoxically contributes significantly to global carbon emissions, accounting for approximately 4.9% of global emissions. Despite growing public concern about climate change, few studies have explored patients' awareness and attitudes toward the environmental impact of healthcare. This study aims to assess patients' perspectives on climate change and the sustainability of healthcare practices. Methods: A cross-sectional survey was conducted at Ludwig-Maximilians-University (LMU) Hospital in Munich, Germany. Patients were invited to participate in a voluntary, anonymous online survey via strategically placed QR codes throughout the hospital. The survey explored patients' demographic information, environmental awareness, attitudes toward climate-friendly practices in healthcare, and willingness to support sustainable initiatives. Descriptive statistics and regression analyses were used to analyze the data. Results: A total of 399 patients completed the survey (87% completion rate). The majority of respondents (92.3%) were aware of climate change, and 82.7% reported prioritizing climate-friendly practices in their personal lives. However, 55.9% of respondents were unaware of the healthcare system's contribution to carbon emissions, and only 18.3% knew about hospitals' climate impact. Despite this, 88.2% of respondents supported environmentally friendly initiatives in hospitals, and 86.5% were open to sustainable alternatives, provided that quality standards were maintained. Participants expressed significant interest in knowing the environmental impact of their treatments, with 63.2% in favor of a Nutri-Score-like system that would display the carbon footprint of medical procedures. Among those, 54.4% indicated that such a system would influence their choice of treatment. Similarly, 62.2% of respondents were interested in knowing the environmental impact of their medications, with 65% reporting that this information would affect their medication choices. A notable proportion of patients (66.2%) indicated willingness to support sustainable healthcare through shorter hospital stays and increased follow-up visits, while 35.8% were open to paying a CO Conclusion: The study highlights a gap between patients' environmental awareness and their knowledge of healthcare's carbon footprint. While patients are generally supportive of sustainable practices in healthcare, their willingness to act diminishes when personal costs or discomfort are involved. A coordinated approach involving policy changes, patient education, and market innovations is essential to promote sustainable practices in healthcare without compromising patient care quality. Further research is needed to explore strategies for bridging the gap between environmental awareness and action in healthcare settings.