International Study Reveals Sex and Age Biases in AI Models for Skin Disease Diagnosis

An international research team led by Assistant Professor Zhiyu Wan from ShanghaiTech University has recently published groundbreaking findings in the journal Health Data Science, highlighting biases in multimodal large language models (LLMs) such as ChatGPT-4 and LLaVA in diagnosing skin diseases from medical images. The study systematically evaluated these AI models across different sex and age groups.

Utilizing approximately 10,000 dermatoscopic images, the study focused on three common skin diseases: melanoma, melanocytic nevi, and benign keratosis-like lesions. Results revealed that while ChatGPT-4 and LLaVA outperformed most traditional deep learning models overall, ChatGPT-4 showed greater fairness across demographic groups, whereas LLaVA exhibited significant sex-related biases.

Dr. Wan emphasized, "While large language models like ChatGPT-4 and LLaVA demonstrate clear potential in dermatology, we must address the observed biases, particularly across sex and age groups, to ensure these technologies are safe and effective for all patients."

The team plans further research incorporating additional demographic variables like skin tone to comprehensively evaluate the fairness and reliability of AI models in clinical scenarios. This research provides critical guidance for developing more equitable and trustworthy medical AI systems.

Wan Z, Guo Y, Bao S, Wang Q, Malin BA.
Evaluating Sex and Age Biases in Multimodal Large Language Models for Skin Disease Identification from Dermatoscopic Images.
Health Data Sci. 2025 Apr 1;5:0256. doi: 10.34133/hds.0256

Most Popular Now

Do Fitness Apps do More Harm than Good?

A study published in the British Journal of Health Psychology reveals the negative behavioral and psychological consequences of commercial fitness apps reported by users on social media. These impacts may...

AI Tool Beats Humans at Detecting Parasi…

Scientists at ARUP Laboratories have developed an artificial intelligence (AI) tool that detects intestinal parasites in stool samples more quickly and accurately than traditional methods, potentially transforming how labs diagnose...

Making Cancer Vaccines More Personal

In a new study, University of Arizona researchers created a model for cutaneous squamous cell carcinoma, a type of skin cancer, and identified two mutated tumor proteins, or neoantigens, that...

AI can Better Predict Future Risk for He…

A landmark study led by University' experts has shown that artificial intelligence can better predict how doctors should treat patients following a heart attack. The study, conducted by an international...

A New AI Model Improves the Prediction o…

Breast cancer is the most commonly diagnosed form of cancer in the world among women, with more than 2.3 million cases a year, and continues to be one of the...

AI System Finds Crucial Clues for Diagno…

Doctors often must make critical decisions in minutes, relying on incomplete information. While electronic health records contain vast amounts of patient data, much of it remains difficult to interpret quickly...