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Background  It has been suggested that health literacy may impact the use of decision aids (DAs) among patients facing difficult decisions. Embedded in the pilot test of a questionnaire, this study aimed to measure the association between health literacy and pregnant women’s intention to use a DA to decide about prenatal screening. We recruited a convenience sample of 45 pregnant women in three clinical sites (family practice teaching unit, birthing center and obstetrical ambulatory care clinic). We asked participating women to complete a self-administered questionnaire assessing their intention to use a DA to decide about prenatal screening and assessed their health literacy levels using one subjective and two objective scales.    Results  Two of the three scales discriminated between levels of health literacy (three numeracy questions and three health literacy questions). We found a positive correlation between pregnant women’s intention to use a DA and subjective health literacy (Spearman coefficient, Rho 0.32,  P  = 0.04) but not objective health literacy (Spearman coefficient, Rho 0.07,  P  = 0.65). Hence subjective health literacy may affect the intention to use a DA among pregnant women facing a decision about prenatal screening.    Conclusion  Special attention should be given to pregnant women with lower health literacy levels to increase their intention to use a DA and ensure that every pregnant women can give informed and value-based consent to prenatal screening.    Electronic supplementary material  The online version of this article (doi:10.1186/s13104-016-2141-0) contains supplementary material, which is available to authorized users.

Health literacy in pregnant women facing prenatal screening may explain their intention to use a patient decision aid: a short report