| http://www.w3.org/ns/prov#value | - BV was also associated with a marked increased risk of spontaneous abortion (OR, 9.91; 95% CI, 1.99???49.34) in a large meta-analysis that included 18 studies and 20,232 patients.12 Ralph et al28 found that BV was associated with an increased risk of miscarriage in the first trimester in women undergoing in vitro fertilization, independent of other risks factors such as smoking or old age.
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