Per Olof Janson

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OBJECTIVE To study the association between hormonal infertility treatment and ovarian neoplasia. DESIGN Historical cohort study. SETTING Three university hospitals in Sweden. PATIENT(S) A total of 2,768 women assessed and treated for infertility and infertility-associated disorders between 1961 and 1975. INTERVENTION(S) Exposed women received(More)
BACKGROUND The primary aims were to compare the pain-relieving effect and post-operative well-being between electro-acupuncture analgesia (EA) and conventional analgesia (CA) comprising opiates. Further aims were to compare time for mobilization, and costs for time and drug consumption. METHODS In all, 160 women undergoing IVF were randomized, according(More)
Polycystic ovary syndrome (PCOS), the most common endocrine disorder in women of reproductive age, is characterized by hyperandrogenism, oligo/amenorrhea, and polycystic ovaries. We aimed to determine whether low-frequency electro-acupuncture (EA) would decrease hyperandrogenism and improve oligo/amenorrhea more effectively than physical exercise or no(More)
We have recently shown that polycystic ovary syndrome (PCOS) is associated with high muscle sympathetic nerve activity (MSNA). Animal studies support the concept that low-frequency electroacupuncture (EA) and physical exercise, via stimulation of ergoreceptors and somatic afferents in the muscles, may modulate the activity of the sympathetic nervous system.(More)
CONTEXT In congenital adrenal hyperplasia (CAH) caused by different mutations, feminizing surgery is mostly performed in childhood, and many patients are lost to follow-up. OBJECTIVE/PATIENTS A follow-up study on 62 CAH women aged 18-63 yr and 62 age-matched controls to correlate findings of both operative method and mutation was performed. DESIGN(More)
CONTEXT Gender-atypical behavior has been described in young girls as well as in women with congenital adrenal hyperplasia (CAH) due to a CYP21A2 deficiency. OBJECTIVE The aim of the study was to assess health-related, psychosexual, and psychosocial parameters and correlate the results to CYP21A2 genotype. DESIGN AND PARTICIPANTS Sixty-two Swedish women(More)
Increasing parity is associated with a reduction in the risk of ovarian cancer, but it is not clear whether this association applies to different histopathological types and to borderline tumours. Moreover, the temporal relations are poorly understood, and the possible role of age at first birth remains unequivocal. We have investigated these issues in a(More)
BACKGROUND Low pregnancy rate has been reported in women with congenital adrenal hyperplasia (CAH) and little information on pregnancy and children is known. METHODS In a Swedish study, 62 adult women with CAH, aged 18-63 years, and 62 age-matched controls were followed-up. Medical records, including those concerning pregnancies and deliveries, were(More)
Two hundred and six pregnancies occurring after in vitro fertilization (IVF) and embryo transfer (ET) during a 7-year period in Göteborg were analysed with respect to pregnancy outcome. The clinical abortion rate was 26%, the rate of ectopic pregnancy was 10%, the rate of ongoing pregnancies beyond 24 weeks was 15%, and the rate of deliveries was 49% (n =(More)
OBJECTIVE To describe and compare quality of life in men and women who had in vitro fertilization (IVF) within the Swedish public health system 4-5.5 years previously, either unsuccessfully and were subsequently living without children, or successfully, having children aged 4-5.5 years. These groups were compared to a control group of men and women with(More)