Bias in healthcare AI happens when machine learning models give unfair or unequal results to different groups of patients. It can cause harmful differences, especially for groups that have been underserved in the past. Bias often comes from several sources:
Matthew G. Hanna and others wrote a review that points out if these biases are not fixed, AI might create unfair healthcare results. They say AI must be made clearly and ethically, since it is being used more for diagnosis and medical decisions.
Fairness in AI is not just a technical problem; it is about ethics like justice and equal care. Biased AI can cause wrong diagnoses, bad treatments, and keep health differences between races, income groups, and regions.
AI systems must serve all types of patients equally and should not make health differences worse. Healthcare leaders in the U.S., where patients are very diverse, must make sure AI is fair. This helps them follow laws and meet their goal to give equal care to everyone.
Fairness also builds trust. Patients and doctors have to trust that AI tools work well and are not unfair. This trust helps them accept AI help in healthcare.
Large language models, like GPT, are AI programs that understand and write human-like text. People want to use them for things like answering patient messages, writing clinical notes, and helping with office work in hospitals.
But research shows that tests of these AI tools in real healthcare are still few:
These problems show we need solid and ongoing tests to watch how AI acts in real healthcare.
Healthcare groups must do several things to make sure AI tools, especially LLMs, work fairly and ethically:
AI tools, including LLMs, can help reduce the workload of doctors and office staff in U.S. medical offices. A survey by AMA researchers says non-medical tasks cause much doctor burnout. Using AI to handle these tasks can make work smoother and free time for patient care.
Healthcare managers and IT staff might want to use AI for:
These AI tools must be used carefully to avoid bias. For example, patient messaging AI needs to respect cultural differences and use fair language for all patients.
Also, adopting AI should follow hospital rules that protect patient privacy and data security. It must meet laws like HIPAA.
Healthcare leaders like administrators, owners, and IT managers have important jobs in bringing AI tools into U.S. health care responsibly:
Dealing with bias and fairness in healthcare AI is hard but needed for safe and good medical care. As large language models are used more in medicine, U.S. healthcare leaders must focus on careful testing, ethical rules, and ongoing watching of AI tools. Using more real patient data and checking different specialties helps lower risks of biased care.
At the same time, AI that automates office tasks can help reduce doctor stress and make medical offices work better if done right.
Combining careful tests, smart bias detection tools like Constitutional AI, and strong ethical rules lets healthcare groups use AI well while keeping fairness and patient safety.
This fair and careful method is key to using AI the right way, meeting the needs of many patients, and supporting doctors in health care that is always changing.
Challenges include safety errors in AI-generated responses, lack of real-world evaluation data, the emergent and rapidly evolving nature of generative AI that disrupts traditional implementation pathways, and the need for systematic evaluation to ensure clinical reliability and patient safety.
Systematic evaluation ensures LLMs are accurate, safe, and effective by rigorously testing on real patient data and diverse healthcare tasks, preventing harmful advice, addressing bias, and establishing trustworthy integration into clinical workflows.
Most evaluations use curated datasets like medical exam questions and vignettes, which lack the complexity and variability of real patient data. Only 5% of studies employ actual patient care data, limiting the real-world applicability of results.
LLMs mostly focus on medical knowledge enhancement (e.g., exams like USMLE), diagnostics (19.5%), and treatment recommendations (9.2%). Non-clinical administrative tasks—billing, prescriptions, referrals, clinical note writing—have seen less evaluation despite their potential impact on reducing clinician burnout.
By automating non-clinical and administrative tasks such as patient message responses, clinical trial enrollment screening, prescription writing, and referral generation, AI agents can free physicians’ time for higher-value clinical care, thus reducing workload and burnout.
Important dimensions include fairness and bias mitigation, toxicity, robustness to input variations, inference runtime, cost-efficiency, and deployment considerations, all crucial to ensure safe, equitable, and practical clinical use.
Since LLMs replicate biases in training data, unchecked bias can perpetuate health disparities and stereotypes, potentially causing harm to marginalized groups. Ensuring fairness is essential to maintain ethical standards and patient safety.
Use of AI agent evaluators guided by human preferences (‘Constitutional AI’) allows automated assessment at scale, such as detecting biased or stereotypical content, reducing reliance on costly manual review and accelerating evaluation processes.
Different medical subspecialties have unique clinical priorities and workflows; thus, LLM performance and evaluation criteria should be tailored accordingly. Some specialties like nuclear medicine and medical genetics remain underrepresented in current research.
Recommendations include developing rigorous and continuous evaluation frameworks using real-world data, expanding task coverage beyond clinical knowledge to administrative functions, addressing fairness and robustness, incorporating user feedback loops, and standardizing evaluation metrics across specialties.