• 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)
  • 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)
  • In contrast, dates calculated from the first day of the last menstrual period (menstrual age) may have inaccuracies arising from imprecise recollection of dates, variation in the timing of ovulation, or time to conception. (hindawi.com)
  • variability
  • As such, there is considerable variability between current reference charts, and estimated gestational age can vary significantly depending on which chart is used. (hindawi.com)
  • 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)
  • 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)
  • 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)
  • 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)
  • mean
  • Height - mean (age, sex)}/ SD (age, sex), where mean (age, sex) and SD (age, sex) were mean and SD of height for corresponding chronological age and sex (data of those in 2000). (clinicaltrials.gov)