Latest1 information on COVID-19
©2022 Stanford Medicine
Not Recruiting
Trial ID: NCT01203449
Development of Standards for the New Ballard Maturation Score
Inclusion Criteria:
- <28 weeks gestational age by best obstetrical estimate
- Availability of mother's prenatal records for review
- First prenatal visit occurred before 17 weeks' gestation
- Mother's menstrual history allowed calculation of GA at birth
- Mother reported the duration of her usual menstrual cycles as 21 to 35 days
- Mother had 3 consecutive normal menstrual cycles before the missed menstrual period
identifying the index pregnancy
- Mother reported that she was certain within 4 days of the first day of the last
menstrual period (as recorded at the time of the first prenatal visit)
- Mother denied use of birth control medication during the 3 months preceding the last
menstrual period.
Exclusion Criteria:
- Inaccurate or unavailable menstrual histories
Not Recruiting
Stanford University
School of Medicine
300 Pasteur Drive
Stanford,
CA
94305