Women with singleton pregnancy.
History of preterm labor and/or midtrimester miscarriage in a previous pregnancy.
Cervical length of 15-25 mm by transvaginal sonography (TVS) at 16-24 weeks of gestation.

NCT02673359_inc_T1
Person
Women
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Condition
singleton pregnancy
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Condition
preterm labor
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Condition
midtrimester miscarriage
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Temporal
previous
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Condition
pregnancy
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Scope
previous pregnancy
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Scope
preterm labor and/or midtrimester miscarriage
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Measurement
Cervical length
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Value
15-25 mm
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Procedure
transvaginal sonography (TVS)
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Value
16-24 weeks
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Measurement
gestation
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Temporal
at 16-24 weeks of gestation
NCT02673359_inc_T15
Reference_point
16-24 weeks of gestation