• diabetes
  • One of the primary risk factors of LGA is poorly-controlled diabetes, particularly gestational diabetes (GD), as well as preexisting diabetes mellitus (DM) (preexisting type 2 is associated more with macrosomia, while preexisting type 1 can be associated with microsomia). (wikipedia.org)
  • incidence
  • During the first period, which lasts until the 24th gestational week, the incidence of a longitudinal lie increases, with equal proportions of breech or cephalic presentations from this lie. (wikipedia.org)
  • During the second period, lasting from the 25th to the 35th gestational week, the incidence of cephalic presentation increases, with a proportional decrease of breech presentation. (wikipedia.org)
  • ELBW
  • Objective: The purpose of this study was to evaluate neurodevelopmental outcome in extremely-low-birth-weight (ELBW) infants, all of whom had 3 characteristics: gestational age (GA) less than or equal to24 weeks, birth weight less than or equal to750 g, and 1-minute Apgar score less than or equal to3. (rti.org)
  • trimester
  • The aims of this study were to determine if the normal range of TSH changes according to gestational age during the first trimester and to determine the upper limit of TSH to define subclinical hypothyroidism in pregnant women. (thyroid.org)
  • Diagnosis
  • While the implications of this law for defining viability in medicine may not be fully explored, in practice doctors and nurses are advised not to resuscitate such persons with gestational age of 22 weeks or less, under 400 g weight, with anencephaly, or with a confirmed diagnosis of trisomy 13 or 18. (wikipedia.org)
  • calculate
  • Because the Centers for Disease Control and Prevention's annual study on abortion statistics does not calculate the exact gestational age for abortions performed past the 20th week, there are no precise data for the number of abortions performed after viability. (wikipedia.org)
  • menstrual
  • A more complete listing of methods is given in following table: As a general rule, the official gestational age should be based on the actual beginning of the last menstrual period, unless any of the above methods gives an estimated date that differs more than the variability for the method, in which case the difference cannot probably be explained by that variability alone. (wikipedia.org)
  • risk
  • Women having their first birth after the age of 35 years had a 40% increased risk compared to those with a first birth before the age of 20 years. (wikipedia.org)
  • Date
  • Due date estimation basically follows two steps: Determination of which time point is to be used as the origin for gestational age. (wikipedia.org)
  • The rule estimates the expected date of delivery (EDD) by adding a year, subtracting three months, and adding seven days to the origin of gestational age. (wikipedia.org)
  • found
  • The researchers noted abrupt changes in each gut's bacterial composition along the way to 36 weeks in gestational age but found that somehow the gut ecosystems adjusted and returned to what seemed to be a preordained progression of bacterial colonization. (newswise.com)
  • There are some common conditions and disorders found in many that are SGA (and especially those that are SGA without catchup growth by age 2). (wikipedia.org)
  • United States: In 2003, from data collected in those areas that sufficiently reported gestational age, it was found that 6.2% of abortions were conducted between 13 and 15 weeks, 4.2% between 16 and 20 weeks, and 1.4% at or after 21 weeks. (wikipedia.org)
  • days
  • Gestational age can also be estimated by calculating days from ovulation if it was estimated from related signs or ovulation tests, and adding 14 days by convention. (wikipedia.org)