PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 15479704

A big first step.

Howard W Jones
View original source ↗Export metadata ↓

Abstract

The singleton, term gestation, live birth rate per cycle initiated (BESST) endpoint proposed at the beginning of 2004 is a first big step which should be added to by the consideration of multiple pregnancy rates in relation to singleton rates, by recording of fetal reductions and of pregnancies resulting from cryopreserved material. After three or more steps we may have an accurate reporting system which helps patients to distinguish the pros and cons for singleton term delivery.

Explore related subjects

Birth RateDelivery, ObstetricFemaleHumansInfant, NewbornInfant, PrematurePregnancyPregnancy Reduction, MultifetalPregnancy, MultipleReproductive Techniques, AssistedCommentJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Howard W Jones. 2004-10-12. A big first step.. https://doi.org/10.1093/humrep%2Fdeh564

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2005

Prospective validation of two models predicting pregnancy leading to live birth among untreated subfertile couples.

BACKGROUND: Models predicting clinical outcome need external validation before they can be applied safely in daily practice. This study aimed to validate two models for the prediction of the chance of treatment-independent pregnancy leading to live birth among subfertile couples. METHODS: The first model uses the woman's age, duration and type of subfertility, percentage of progressive sperm motility and referral status. The second model in addition uses the result of the post-coital test (PCT). For validation, these characteristics were collected prospectively in two University hospitals for 302 couples consulting for subfertility. The models' ability to distinguish between women who became pregnant and women who did not (discrimination) and the agreement between predicted and observed probabilities of treatment-independent pregnancy (calibration) were assessed. RESULTS: The discrimination of both models was slightly lower in the validation sample than in the original sample which provided the model. Calibration was good: the observed and predicted probabilities of treatment-independent pregnancy leading to live birth did not differ for both models. CONCLUSIONS: The chance of pregnancy leading to live birth was reliably estimated in the validation sample by both models. The use of PCT improved the discrimination of the models. These models can be useful in counselling subfertile couples.

Birth Rate↗
PubMed2005

State of South Dakota's child: 2004.

South Dakota saw a 3% increase in births in 2003 with more than 11,000 newborns joining the state for the first time since 1992. This increase in births was only observed for American Indians and other minority populations, while the births of white babies decreased from the previous year. National trends are revealing a concerning increase in low birth weight (<2500 grams) newborns. South Dakota's rate of low birth weight has consistently been lower than that noted for the country but it is also increasing. Reflecting this national trend in low birth weight, was an increase in the country's 2002 infant mortality rate (7.0), the first increase over the previous year's rate noted in the past 44 years. South Dakota also noted a slight increase in its infant mortality rate in 2002 but it decreased to 6.6 in 2003. The state's 2003 neonatal mortality rate (<28 days of life) dropped to 3.2, but its post neonatal mortality rate slightly increased in 2003, accounted for by an increase in the rate of these deaths only among its white population.

Birth Rate↗
PubMed2004

[Changes in Norwegian obstetric practices, 1915-1961].

BACKGROUND: Established in 1967, the Medical Birth Registry of Norway has detailed accounts of all births in Norway. We have, however, only limited knowledge of obstetric practices in Norway in the decades before the Birth Registry was established. One important source is the annual reports of the Maternity Clinic in Oslo. MATERIAL: We analysed the annual reports for the period 1915-1961 with special emphasis on operative deliveries. RESULTS: The obstetric forceps was used in 6.5-12.5% (median 8.7%) of cephalic presentations. In 1960, the vacuum extractor was used for the first time. The rate of caesarean sections increased from 1.5% in the late 1930s to 6.3% in 1961. The proportion of operative deliveries increased up until 1944-55 when it was 14-16%, then fell in the years to 1960 when it was about 12%. Between 1915-1934, maternal mortality was as high as 6.4 per thousand. From the mid-1930s, it steadily decreased to 0.6 per thousand in the last five-year period. Well over one third of the deaths were caused by eclampsia or serious preeclampsia. INTERPRETATION: Birth traumas and neonatal death was the price paid for saving the mothers' lives and health. The operative activity was higher than what might be expected on the basis of the late-1960s data in the Birth Registry. The increase in caesarean sections was steepest during the Second World War, at a time when the number of deliveries in the clinic rose substantially.

Birth Rate↗