![]() ![]() ![]() However, in fewer than 5% of the discussions did the authors mention how the retrospective design might affect the interpretation of the results both last decade and this decade. Preliminary results suggest that fewer than one-third of all of the articles mentioned in the Discussion section that the retrospective design was a limitation to the interpretation of the results in 2004 to 2005 this increased relatively by 50% to 100% by 2014 to 2015. Journals reviewed included the American Journal of Ophthalmology, JAMA Ophthalmology, JAMA Otolaryngology, Ophthalmology, and RETINA. Retrospective designs were defined as studies performed after the outcomes of interest had already occurred most commonly case control studies, but also retrospective cohort or case series. #Retrospective research series#All original investigations, excluding brief reports case series case reports or observations, were reviewed to determine if the study design was retrospective. Original investigations from three ophthalmology journals with relatively high impact factors as well as a similar specialty journal in otolaryngology and a subspecialty journal in retina were reviewed in 2004 to 2005 and in 2014 to 2015. This study aimed to determine how often clinical research publications in select ophthalmology journals that are retrospective in design state “retrospective” design in the title or methods, and how often limitations of that design are mentioned or commented upon in the discussion section. Since retrospective designs can introduce bias or confounding on results, and as such, should be noted by authors. ![]()
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