(clock 2) could be compromised in species for which knowledge of maximum lifespan is inaccurate, we developed a third universal clock, using age at sexual maturity (ASM) and gestation time instead of maximum lifespan, as these traits are better established and explain over 69% of maximum ...
OBJECTIVE: To provide estimates of maternal age- and gestational age-related risks for trisomy 21. METHODS: The prevalence of trisomy 21 was examined in 57,614 women who had fetal karyotyping at 9-16 weeks of gestation for the sole indication of maternal age of 35 years or mo...
Consequently, fetal ultrasound late in pregnancy has a wide margin of error of at least ±2 weeks’ gestation. Here, we utilise state-of-the-art machine learning methods to estimate gestational age using only image analysis of standard ultrasound planes, without any measurement information. The ...
first trimester, we ensured an accurate way to determine GA for ART pregnancies: for the fresh cycles including controlled ovarian stimulation, we determined the date of the ovum pick-up as day 14 of gestation and for the frozen cycles, we determined the day of the blastocyst-transfer as day...
Data are even more scarce within categories of preterm births21,24-31 despite late preterm (LPT; 34-36 weeks’ gestation), moderately preterm (MPT; 28-33 weeks’ gestation), and extremely preterm (EPT; ≤27 weeks’ gestation) births posing distinct challenges for mothers. For example, ...
clock (clock 2) could be compromised in species for which knowledge of maximum lifespan is inaccurate, we developed a third universal clock, using age at sexual maturity (ASM) and gestation time instead of maximum lifespan, as these traits are better established and explain over 69% of maximu...
Outcome at 5 Years of Age of Children 23 to 27 Weeks' Gestation: Refining the Prognosis. Conclusions. The prognosis for very preterm infants changes substantially with postnatal age. Counseling of families should be repeated at intervals, and t... Doyle,Lex,W. - 《Pediatrics》 被引量: 215发...
Mathematical modeling of the data demonstrated that the femur growth curve is always linear beyond 24 weeks of gestation. Tlte following regression equation was derived : GA (week) = 5.2 FL (cm) + 2, SD 卤5 days (Honarvar's Formula 2). According to this data, the error in estimation ...
Live births and stillbirths of 20 or more completed weeks’ gestation were identified using the British Columbia Perinatal Data Registry. Pregnancies ending before 20 weeks’ gestation were identified using physician billing, hospital discharge, or outpatient prescription codes for spontaneous or induced ...
For example, an unexposed baby born at 28 weeks of gestation was found small for his GA (SGA = 1) if his BW was less than 999.89 g and not small for his GA otherwise (SGA = 0), where 999.89 is the 10th percentile of a normal distribution with mean equal to −3703.3 + 183.25 ...