125
Participants
Start Date
October 31, 2002
Primary Completion Date
June 30, 2006
Study Completion Date
July 31, 2007
Transvaginal ultrasound determination of cervical length
Transvaginal ultrasound was used to measure the length of the cervix from the internal to external os relying on a standard approach and clinicians caring for the patients were made aware of the results.
Routine care
Routine prenatal care of twins. Digital exams were permitted, but transvaginal ultrasound assessment of cervical length was not.
Madigan Army Medical Center
FED
Wright-Patterson Medical Center
UNKNOWN
William H. Barth, Jr., M.D., Col(ret), USAF, MC
FED