Abstract
ObjectiveTo estimate the effectiveness of selective versus universal screening for thyroid dysfunction (TD) during pregnancy. Material and methodsCross-sectional study applying a selective screening protocol, based on the presence of TD risk factors (RF), in a cohort of pregnant women with a positive universal screening result in the Oviedo Healthcare District. Two hundred and twenty pregnant women with TD were studied between April 2010 and March 2011. ResultsSelective screening identified 83.6% of pregnant women with TD. The most prevalent RF were maternal age ≥ 30 years (70.5%), history of miscarriage (21.8%) and family history of thyroid disease (20.9%). Excluding the age factor, only 51.8% of the pregnant women included in the group had risk factors. ConclusionsSelective screening identifies a high proportion of pregnant women with TD but at the expense of screening a large number of women, so it does not appear to be an effective strategy.
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