Trial Search Results

Development of Standards for the New Ballard Maturation Score

The primary purpose of this study was to evaluate the accuracy of gestational age (GA) estimates by using the New Ballard Score (NBS) in newborns 24 to 27 weeks GA with accurate obstetric estimates of GA. Secondary purposes were: (1) to compare the accuracy of GA estimates derived from the NBS, the original Ballard score, and the physical items of the original Ballard score and (2) to compare these measures of GA and best obstetric estimates of GA as predictors of survival, morbidity, and hospital stay among infants <28 weeks' gestation and among very low birth weight infants in general.

Stanford is currently not accepting patients for this trial.

Lead Sponsor:

NICHD Neonatal Research Network

Collaborator: National Center for Research Resources (NCRR)

Stanford Investigator(s):


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

Ages Eligible for Study

N/A - 48 Hours

Genders Eligible for Study


Not currently accepting new patients for this trial

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Not Recruiting