Egbert R. te Velde

observational 2016

Predicting the chances of a live birth after one or more complete cycles of in vitro fertilisation: population based study of linked cycle data from 113 873 women

BMJ (Clinical research ed.) ·doi:10.1136/bmj.i5735

OBJECTIVE: To develop a prediction model to estimate the chances of a live birth over multiple complete cycles of in vitro fertilisation (IVF) based on a couple's specific characteristics and treatment information. DESIGN: Population based…

observational 2005

The antral follicle count is a better marker than basal follicle-stimulating hormone for the selection of older patients with acceptable pregnancy prospects after in vitro fertilization

Fertility and sterility ·doi:10.1016/j.fertnstert.2004.11.005

This observational study shows that the antral follicle count is a better predictor of ongoing pregnancy in IVF patients aged >38 years of age than is basal FSH. Patients aged <44 years with a normal antral follicle count still have accepta…

observational 2003

Factor V Leiden mutation accelerates the onset of natural menopause

Menopause ·doi:10.1097/01.gme.0000056040.51813.1a

OBJECTIVE: Smoking is consistently associated with a younger age for menopause. Although this may be because of the direct toxic effects of tobacco smoke on follicles, we hypothesize that there may also be a relationship between smoking and…

observational 1991

The origin of estrogens, progesterone, androgens and sex hormone binding globulin in peritoneal fluid in the immediate postovulatory period in normal ovulating women

Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology ·doi:10.3109/09513599109028437

In 20 women with proven fertility, one menstrual cycle was monitored by ovarian ultrasonography, laparoscopy and estimation of 17 beta-estradiol (E2), estrone (E1), progesterone, testosterone, androstenedione (Adion), dehydroepiandrosterone…