Evidence Level and Research Topic of Medical Research Articles Published Before or After News Coverage*.

*Denominators are weighted and are any article used as a front-page news source (Before) and any article published within 3 years of news coverage corresponding to any preliminary study used as a front-page news source (After).?Modified from the Oxford EBM classification system [13] and the National Health and Medical Research guidelines [16].?Expert opinions comprised case reports, descriptive/methodological studies, narrative reviews, qualitative studies, audits, reports of expert committees, research letters, technical notes, and tutorials. Commentaries or editorials, news items, and nonresearch letters from journals were excluded from analysis (52 from ��Before�� and 7 from ��After��).��Studies not classifiable using the other 11 topics (e.g. bionic eye studies, bone cement research).na = not applicable.