Results 161 to 170 of about 1,090,977 (213)

Pregnancy rates and birth rates

Population Studies, 1962
Summary In this article the relationships between pregnancy rates per hundred woman-years of exposure and annual birth rates per thousand population are analyzed by means of a simple population model The assumptions underlying this model are: a rate of 80 pregnancies per hundred woman-years of non-contraceptive exposure, a foetal mortality rate of 20 ...
openaire   +1 more source

Cesarean delivery rates in adolescent pregnancy

The European Journal of Contraception & Reproductive Health Care, 2005
To investigate the rates of cesarean deliveries in two different hospitals, which serve different populations in Turkey.The study was conducted at two centers, one of which is a university hospital in a rural area and the other a community hospital in capital city, for 5 years (1999-2003). The subjects were < 18 years old adolescent mothers.
Sahin, I, Zeteroglu, S, Gol, K
openaire   +3 more sources

Pregnancy rates with bisected bovine embryos

Theriogenology, 1984
A method for producing identical twin calves is described in which 5.5 to 7.5 day bovine embryos were bisected using a fine microsurgical blade. The resulting demi-embryos were transferred surgically or nonsurgically to the uterine horn ipsilateral to the corpus luteum of synchronous recipients (+/- 2 days), one demi-embryo per recipient.
T J, Williams, R P, Elsden, G E, Seidel
openaire   +2 more sources

Pregnancy Loss Rates After Midtrimester Amniocentesis

Obstetrics & Gynecology, 2006
The purpose of this study was to quantify the contemporary procedure-related loss rate after midtrimester amniocentesis using a database generated from patients who were recruited to the First And Second Trimester Evaluation of Risk for Aneuploidy trial.A total of 35,003 unselected patients from the general population with viable singleton pregnancies ...
Keith A, Eddleman, Fergal D, Malone, Lisa, Sullivan, Kim, Dukes, Richard L, Berkowitz, Yara, Kharbutli, T Flint, Porter, David A, Luthy, Christine H, Comstock, George R, Saade, Susan, Klugman, Lorraine, Dugoff, Sabrina D, Craigo, Ilan E, Timor-Tritsch, Stephen R, Carr, Honor M, Wolfe, Mary E, D'Alton   +16 more
openaire   +2 more sources

GnRHa flare and IVF pregnancy rates

International Journal of Gynecology & Obstetrics, 2003
AbstractObjectives: GnRH agonist administered early in the menstrual cycle (flare) causes an endogenous discharge of FSH and LH. Flare has been used in conjunction with gonadotropin ovarian stimulation for IVF ‘poor responders’. There is an ongoing controversy regarding whether flare protocols improve pregnancy rates in ‘poor responders’.
E, Confino, X, Zhang, R R, Kazer
openaire   +2 more sources

FETAL HEART RATE DURING LATE PREGNANCY

BJOG: An International Journal of Obstetrics & Gynaecology, 1974
SummaryContinuous records of fetal heart rate were made weekly during the last trimester of 15 normal pregnancies. Using an ultrasonic technique, a total of 124 records, each lasting 50 minutes, was obtained. With increasing length of gestation there was a small but significant reduction in mean heart rate and an increase in beat‐to‐beat variation.
T, Wheeler, P, Guerard
openaire   +2 more sources

Transmyometrial oocyte retrieval and pregnancy rates

Fertility and Sterility, 2002
To determine whether transvaginal, ultrasound-guided oocyte retrieval performed through the myometrium has a negative impact on IVF pregnancy rates.Retrospective cohort study.Academic hospital and research center.A total of 5,115 IVF cycles performed at the Brigham and Women's Hospital between 1998 and 2001 were evaluated.
Lynn Bentley, Davis, Elizabeth Sarah, Ginsburg   +1 more
openaire   +2 more sources

Pregnancy rates after laparoscopy for infertility

European Journal of Obstetrics & Gynecology and Reproductive Biology, 1984
To obtain prognostic data on the likelihood of pregnancy in infertile women with no observable abnormalities at diagnostic laparoscopy, the occurrence of pregnancy was studied in a series of 229 patients. The cumulative conception rate during a follow-up period of at most 5 yr was 50%.
G C, Trimbos-Kemper, J B, Trimbos, E V, van Hall   +2 more
openaire   +2 more sources

Obesity and lower teenage pregnancy rates

BMJ, 2014
It seems heartening that unplanned conception and pregnancy rates in teenagers are decreasing in England,1 New Zealand,2 and the United States.3 However, we should be cautious in thinking that our social programmes and availability of new family planning technologies are the only solutions to this problem.
openaire   +2 more sources

Pregnancy loss rate in equine uterine body pregnancies

Equine Veterinary Education, 2005
There is scant information on the outcome of uterine body pregnancies in the mare, but anecdotal evidence indicates that most result in abortion. In a retrospective study of 3527 pathology records from the Livestock Disease and Diagnostic Center, University of Kentucky, 10 aborted fetuses were associated with body pregnancies.
M. L. Jobert, M. M. LeBlanc, S. W. Pierce   +2 more
openaire   +1 more source