JAMA-Journal of the American Medical Association

JAMA: Journal of the American Medical Association is a prestigious, peer-reviewed medical journal published weekly by the American Medical Association. With an impact factor of 65.400 in 2026 and consistently ranked in the JCR Q1 quartile, JAMA stands among the most influential and widely cited medical journals globally. Its scope encompasses all fields of medicine, with a primary focus on publishing original research that has immediate clinical relevance and the potential to change patient care or public health policy. The journal prioritizes high-impact studies, including randomized clinical trials, large-scale observational studies, meta-analyses, and diagnostic or therapeutic innovations. In addition to original research, JAMA features authoritative review articles, editorials, clinical guidelines, and special communications that synthesize evidence for practicing physicians. Notable features include its rigorous editorial standards, fast-track review for urgent findings, and a strong emphasis on methodological transparency and data sharing. While not fully open access, JAMA offers selected articles freely and provides open access options for authors. The target audience is broad, including clinicians, academic researchers, health policy makers, and medical educators who rely on JAMA for cutting-edge, evidence-based information. Its standing as a top-tier journal in the Q1 quartile and its exceptionally high impact factor underscore its role as a definitive source of medical knowledge, shaping clinical practice and informing health care decisions worldwide.