{Reference Type}: Journal Article {Title}: Disparities in medical recommendations from AI-based chatbots across different countries/regions. {Author}: Gumilar KE;Indraprasta BR;Hsu YC;Yu ZY;Chen H;Irawan B;Tambunan Z;Wibowo BM;Nugroho H;Tjokroprawiro BA;Dachlan EG;Mulawardhana P;Rahestyningtyas E;Pramuditya H;Putra VGE;Waluyo ST;Tan NR;Folarin R;Ibrahim IH;Lin CH;Hung TY;Lu TF;Chen YF;Shih YH;Wang SJ;Huang J;Yates CC;Lu CH;Liao LN;Tan M; {Journal}: Sci Rep {Volume}: 14 {Issue}: 1 {Year}: 2024 07 24 {Factor}: 4.996 {DOI}: 10.1038/s41598-024-67689-0 {Abstract}: This study explores disparities and opportunities in healthcare information provided by AI chatbots. We focused on recommendations for adjuvant therapy in endometrial cancer, analyzing responses across four regions (Indonesia, Nigeria, Taiwan, USA) and three platforms (Bard, Bing, ChatGPT-3.5). Utilizing previously published cases, we asked identical questions to chatbots from each location within a 24-h window. Responses were evaluated in a double-blinded manner on relevance, clarity, depth, focus, and coherence by ten experts in endometrial cancer. Our analysis revealed significant variations across different countries/regions (p < 0.001). Interestingly, Bing's responses in Nigeria consistently outperformed others (p < 0.05), excelling in all evaluation criteria (p < 0.001). Bard also performed better in Nigeria compared to other regions (p < 0.05), consistently surpassing them across all categories (p < 0.001, with relevance reaching p < 0.01). Notably, Bard's overall scores were significantly higher than those of ChatGPT-3.5 and Bing in all locations (p < 0.001). These findings highlight disparities and opportunities in the quality of AI-powered healthcare information based on user location and platform. This emphasizes the necessity for more research and development to guarantee equal access to trustworthy medical information through AI technologies.