The 162 survey respondents estimated their likelihood of prescribing given the information in the vignette. The respondents were randomized to see the letter category or not. Category X (positive evidence of risk that clearly outweighs potential benefits) was not included. For all four remaining categories, the respondents who were shown the letter category were more likely to prescribe. Category B was significantly affected in a mixed linear model, and both categories B and C were significantly affected in a multivariate model.
“The new system of revised labeling may be more ambiguous and present new challenges for clinical decision making that could result in decreased access to medications for pregnant women,” Dr. Robinson said.
Dr. Robinson and her coauthors reported no relevant disclosures.
SOURCE: Robinson A et al. ACOG 2018. Abstract OP5.