Øjvind Lidegaard

..New studies about the influence of hormonal contraception on the risk of venous thromboembolism (VTE) have been published...

..No difference in risk was found according to estrogen dose, and the difference in risk between different types of progestins was not statistically significant after adjustment for duration of use...

..To assess the evidence of an increased risk of imprinting diseases in children born after use of assisted reproductive technologies...

..The aim of this study was to compare the frequency of imprinting diseases in children born after IVF with the incidence in naturally conceived children...

..The disease is typically diagnosed in reproductive age and recent findings have suggested that MS could be a sexually transmitted disease...

..It is an important source of administrative data and for epidemiological research. This paper summarises the results of an evaluation of the register as a tool for assessing quality in gynaecological departments in Denmark...

..The risk increased 2.5 times with estrogen dose increasing from 20 to 50 microg EE, and users of low-dose OCs with second-generation progestins had a 61% higher risk-association of CTA than users of OCs with third-generation progestins...

..The risk increased more than 100% with increasing estrogen dose, and the difference in risk between users of third- and second-generation OCs, after correction for length of use and estrogen dose, was 33%...

..The reason for not preferring a medical abortion among the remaining 20% was primarily pain. Early medical abortion should be offered to all women referred for induced abortion with a gestational age of eight weeks or less...

..It is concluded that medical abortion is a good alternative to surgical abortion, and that women who wish an abortion have to be referred to hospital as early as possible in order not to pass the time limit of medical abortion...

..4 mg vaginally (Mf + Ms) or misoprostol 0.4 mg vaginally (Ms) with conventional surgical evacuation (SE) in women with missed abortion...

..To describe the incidence of placenta previa and to assess neonatal morbidity and mortality in pregnancies with placenta previa after adjustment for previous cesarean section, smoking, multiparity, maternal age and in vitro fertilization...

..Although several studies have assessed the risk of venous thromboembolism with newer hormonal contraception, few have examined thrombotic stroke and myocardial infarction, and results have been conflicting...

..Little is known about the influence of postmenopausal hormone therapy on the risk of ovarian borderline tumors. We aimed at assessing the influence of different hormone therapies on this risk...

..To assess the risk of venous thromboembolism from use of combined oral contraceptives according to progestogen type and oestrogen dose...

..To compare the perinatal outcome of singleton siblings conceived differently...

..To achieve absolute risk estimates of venous thromboembolism (VTE) among women on cyproterone acetate plus ethinylestradiol (CPA/EE), and among women on combined oral contraceptives (COCs)...

..To assess the risk of myocardial infarction (MI) as a result of hormone therapy (HT), with focus on the influence of age, duration of HT, various regimens and routes, progestagen type, and oestrogen dose...

..The aim of this study was to assess incidence rates of spontaneous reductions in IVF/ICSI twin pregnancies and to compare short- and long-term morbidity in survivors of a vanishing co-twin with singletons and born twins...

..Studies have suggested an increased risk of ovarian cancer among women taking postmenopausal hormone therapy. Data are sparse on the differential effects of formulations, regimens, and routes of administration...

..To evaluate the association of first-trimester bleeding without miscarriage and complications later in the first pregnancy as well as in the next pregnancy...

..All four registers are obligatory, but none are 100% complete. In the future a faithful electronic registration by an electronic patient record will probably complete the variable profit ratio and data completeness...

..This article attempts to assess the frequency of vanishing twins in assisted reproductive and spontaneously conceived pregnancies, including in-vitro fertilization (IVF), and its impact on the live-born surviving twin...

..8 (95% CI:2.5 to 5.8) 5-6 weeks after delivery. In conclusion, the risk of VTE increases almost exponentially through pregnancy and reaches maximum just after delivery and is no longer significantly increased six weeks after delivery...

..We thus achieved to more than double the offer of prenatal screening and at the same time reduce the number of invasive procedures by 55%...

..To describe the concept and early results from the Danish Hysterectomy Database (DHD)...

..Oral contraceptives (OC) are the most popular contraception in Denmark. Overall figures on use are well described, but more detailed use patterns according to type and age need to be updated...

..To establish a method of estimating the proportion of women with a subsequent live birth after a well-defined time period in an open cohort of women referred to a tertiary recurrent miscarriage clinic...

..To assess the risk of venous thrombosis in current users of different types of hormonal contraception, focusing on regimen, oestrogen dose, type of progestogen, and route of administration...

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