• Carlos A Camargo, Krislyn M Boggs, Rebecca E Cash, Vishal P Doshi, Henry H Isaacson, Kohei Hasegawa, and Ali S Raja.
• Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
• Acad Emerg Med. 2022 Oct 1; 29 (10): 122112281221-1228.

ObjectivesSince its founding in 1989, the Society for Academic Emergency Medicine (SAEM) has accepted thousands of abstracts for presentation at its annual meeting. We reviewed abstracts to characterize temporal changes in study design, abstract topics, quality scores, and proportion of abstracts published as manuscripts.MethodsIn this serial cross-sectional study, we compiled accepted SAEM abstracts at 5-year intervals (1990, 1995, 2000, 2005, 2010, 2015, 2020) and then randomly selected 100 abstracts from each year for review by two investigators. We documented each abstract's study design, sample size, and whether it was a single-center or multicenter study. We assigned each abstract to the most appropriate topic category. Applying SAEM's abstract scoring system from 2020, we calculated the mean overall quality score per year. Finally, we searched PubMed to determine if abstracts from 1990-2015 meetings were published as manuscripts.ResultsThe number of accepted abstracts increased from 180 in 1990 to 879 in 2020 (+388%). The most common study design changed from laboratory study in 1990 (22%) to cohort study in 2020 (44%; p < 0.001). The median study sample size increased over time, from 105 (interquartile range [IQR] 25-389) in 1990 to 544 (IQR 102-2067) in 2020 (p < 0.001). Multicenter studies have become more common (19% in 1990 vs. 40% in 2020; p = 0.001). The most common topic categories also changed from cardiology/pulmonary/airway (40%) and orthopedic/trauma/burn (17%) in 1990 to health services research/health policy/operations (25%) and cardiology/pulmonary/airway (22%) in 2020. There was a 20% increase in overall quality scores (p < 0.001). Between 37% and 49% of the abstracts reviewed from each year were later published as manuscripts, with no significant change over time (p = 0.33).ConclusionsOver the past 30 years, there have been significant changes to the study designs, topics, and quality scores of SAEM meeting abstracts. However, conversion of abstracts to published manuscripts remains a challenge.© 2022 Society for Academic Emergency Medicine.

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