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1. 89%
sensitive and 83% specific compared to amsel criteria.
2. Gram staining and nugent criteria has specific advantages
over amsel’s clinical diagnosis including:1)
a permanent record of the slide which can be
reviewed to assess the diagnosis of BV and the reliability of the diagnosis,
and 2) a grading or scoring system to be used to recognize intermediate
stages of BV. Gram staining is also more commonly used in epidemiologic
studies such as those preformed by the maternal-fetal medicine unit.
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