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1.
Hospital admissions for complications of abortion have been increasing in Africa, indicating a rise in the incidence of abortion. In all pregnant women ever admitted to Korle-Bu hospital in Accra, Ghana, the chance that the outcome of their last pregnancy was an induced abortion decreased as the number of previous pregnancies increased. Women with higher levels of education were more likely to have their 1st pregnancy terminated in an induced abortion. Younger women were more likely than older women at each level of education to have an induced abortion terminate a 1st pregnancy. The use of contraceptives during the last pregnancy interval increased with the level of education of the woman and the number of previous pregnancies. Contraceptive use was also highest among women whose last pregnancy outcome was an induced abortion. The mean pregnancy interval decreased with increasing number of previous pregnancies for both women who used and who did not use contraceptives during their last pregnancy interval. But the mean pregnancy interval was higher among women who used contraceptives. It appears that the abortion experience in this region of Africa is most common in lower parity young women with high levels of education who desire to delay a 1st birth or to space births. This is in contrast in Latin America and other developing countries in which abortion is used mainly by older, married, urban women to limit family size. Contraceptive use in this region of Africa is low, indicating the need for more family planning programs and increasing use of existing programs.  相似文献   

2.
This 1981 study is the 1st of its kind in Nepal. Analysis using a logit-linear model showed that contraceptive use in Nepal depends on many factors. Women aged 35-49 are 3 times more likely than women aged 15-24 to use contraceptives. Women with 4 or more children are 8 times more likely to use contraceptives than women with 1 or no children, and 2.5 times more likely than women with 2 or 3 children. The use of contraceptives is greatest among women whose offspring includes more sons than daughters, and least among women whose offspring are all daughters. Women who desire no more children are 5 to 6 times more likely to use contraceptives than women who desire more children. Women who have discussed desired family size with their husbands are more than 4 times more likely to use contraceptives than women lacking this type of communication. Women with some schooling are twice as likely to use contraceptives as women with no schooling. Contraceptive use is higher among women who do nonfarm work than farm work, and higher still among women who do not work. Urban women were almost twice as likely to use contraceptives as rural women. Women with less than 1 hour access to a family planning service outlet were 2 to 3 times more likely to use contraceptives than women whose access to these facilities was greater than 1 hour. The number of previous child losses per woman had no significant effect in contraceptive use. Conclusions are based on analysis of data from the Nepal Contraceptive Prevalence Survey, 1981.  相似文献   

3.
A clinician faces a problem in how best to counsel the woman with a family history of breast or ovarian cancer about her options for pregnancy prevention. The physician must guide her as she makes new and complex decisions. Recent data strongly support an amplified effect of the estrogens in oral contraceptives for the woman with a genetic risk for breast cancer. Nonetheless, a woman's immediate need to prevent pregnancy may be much more important to her than worrying about the long-term risk of breast cancer. Another factor is that oral contraceptives prevent ovarian cancer, so the physician may wish to prescribe them to protect her from ovarian cancer. In some genetic backgrounds, however, oral contraceptives not only do not prevent ovarian cancer, but they may raise the risk of breast cancer so significantly that they should not be taken. With other genetic backgrounds, oral contraceptives will protect the woman from ovarian cancer without much effect on her breast cancer risk. When does each of these cancer risks or benefits become significant? The clinician can provide an important benefit to a woman who must prevent pregnancy yet worries about her cancer risk. The physician can help her evaluate the evidence, with its gaps and uncertainties, in the context of her own preferences. To assist in this evaluation, this decision aid provides base-line estimates of the cancer risk that accompanies each of a woman's options. In some cases, genetic testing is likely to provide valuable information as she makes choices about contraception and the risks vs. benefits of different alternatives available to her.  相似文献   

4.
Female hormonal contraceptive use has been associated with a variety of physical and psychological side effects. Women who use hormonal contraceptives report more intense affective responses to partner infidelity and greater overall sexual jealousy than women not using hormonal contraceptives. Recently, researchers have found that using hormonal contraceptives with higher levels of synthetic estradiol, but not progestin, is associated with significantly higher levels of self-reported jealousy in women. Here, we extend these findings by examining the relationship between mate retention behavior in heterosexual women and their male partners and women's use of hormonal contraceptives. We find that women using hormonal contraceptives report more frequent use of mate retention tactics, specifically behaviors directed toward their partners (i.e., intersexual manipulations). Men partnered with women using hormonal contraceptives also report more frequent mate retention behavior, although this relationship may be confounded by relationship satisfaction. Additionally, among women using hormonal contraceptives, the dose of synthetic estradiol, but not of synthetic progesterone, positively predicts mate retention behavior frequency. These findings demonstrate how hormonal contraceptive use may influence behavior that directly affects the quality of romantic relationships as perceived by both female and male partners.  相似文献   

5.
ObjectiveTo compare the risk of idiopathic venous thromboembolism among women taking third generation oral contraceptives (with gestodene or desogestrel) with that among women taking oral contraceptives with levonorgestrel.DesignCohort and case-control analyses derived from the General Practice Research Database.SettingUK general practices, January 1993 to December 1999.ParticipantsWomen aged 15-39 taking third generation oral contraceptives or oral contraceptives with levonorgestrel.ResultsThe adjusted estimates of relative risk for venous thromboembolism associated with third generation oral contraceptives compared with oral contraceptives with levonorgestrel was 1.9 (95% confidence interval 1.3 to 2.8) in the cohort analysis and 2.3 (1.3 to 3.9) in the case-control study. The estimates for the two types of oral contraceptives were similar before and after the warning issued by the Committee on Safety of Medicines in October 1995. A shift away from the use of third generation oral contraceptives after the scare was more pronounced among younger women (who have a lower risk of venous thromboembolism) than among older women. Fewer cases of venous thromboembolism occurred in 1996 and later than would have been expected if the use of oral contraceptives had remained unchanged.ConclusionsThese findings are consistent with previously reported studies, which found that compared with oral contraceptives with levonorgestrel, third generation oral contraceptives are associated with around twice the risk of venous thromboembolism.  相似文献   

6.
Objective: To investigate whether users of oral contraceptives who are carriers of a hereditary prothrombotic condition (factor V Leiden mutation, protein C, S, or antithrombin deficiency) have an increased risk of cerebral sinus thrombosis. Design: Comparison of a prospective series of cases of cerebral sinus thrombosis with population data. Setting: Neurological teaching hospitals from different regions in the Netherlands (cases) and a representative sample of the non-institutionalised Dutch population (controls). Subjects: 40 women aged 18-54 years with cerebral sinus thrombosis (cases) and 2248 women aged 18-49 years (controls). Main outcome measure: Current use of oral contraceptives at the time of the thrombosis (cases) or at the time of the questionnaire (controls). Prevalences of a hereditary prothrombotic condition in patients and in the population with odds ratios. Results: 34 of 40 (85%) women with cerebral sinus thrombosis used oral contraceptives, versus 1007 of 2248 (45%) of the control women; the age adjusted odds ratio was 13 (95% confidence interval 5 to 37). Seven of 36 patients (19%) had a prothrombotic deficiency, versus 7% expected in the population; this corresponds to a threefold to fourfold increase in risk. In women who used oral contraceptives and also carried a prothrombotic defect, the odds ratio for cerebral sinus thrombosis was about 30 relative to women who had neither risk factor. Conclusion: The use of oral contraceptives and being a carrier of a hereditary prothrombotic condition increase the risk of and interact in a multiplicative way in the development of cerebral sinus thrombosis.

Key messages

  • The use of oral contraceptives is associated with an increased risk of cerebral venous sinus thrombosis
  • This risk of cerebral venous sinus thrombosis in women who use oral contraceptives is larger if there is an additional hereditary prothombotic factor (protein C, S, or antithrombin deficiency, factor V Leiden mutation)
  • The association between oral contraceptives, thrombophilia, and deep vein thrombosis is also valid for cerebral sinus thrombosis
  • Women do not need to stop using oral contraceptives as the absolute risk of cerebral sinus thrombosis is very small
  相似文献   

7.
The incidence of ovarian neoplasms and functional ovarian cysts diagnosed at laparotomy or laparoscopy among the 17,000 women taking part in the Oxford Family Planning Association contraceptive study was investigated. Epithelial cancer of the ovary was only 25% as common among those who had ever taken oral contraceptives as those who had never done so (95% confidence interval 8% to 67%). There was little evidence of any important association between use of oral contraceptives and benign teratoma or cystadenoma. Functional cysts of the ovary occurred much less commonly in women who had recently (in the six months preceding diagnosis) taken combined oral contraceptives (but not in those who had taken progestogen only oral contraceptives) than in those who had never taken oral contraceptives or had taken them in the past. This protective effect was more pronounced for corpus luteum cysts (78% reduction; 95% confidence interval 47% to 93%) than for follicular cysts (49% reduction; 95% confidence interval 20% to 70%). It is estimated that about 28 (95% confidence interval 16 to 35) operations for functional ovarian cysts are avoided among every 100,000 women who take oral contraceptives each year.  相似文献   

8.
Metabolic studies in 100 women developing hypertension on combined oestrogen-progestogen oral contraceptives have been compared with similar studies in normotensive women on oral contraceptives, matched for age and duration of contraceptive use, and in women not taking contraceptives.The metabolic changes known to be induced by oral contraceptives—impaired glucose tolerance, elevated blood pyruvate levels, and raised serum lipid concentrations—were found to be exaggerated in the matched hypertensive group, largely due to pronounced abnormalities in 33 subjects with diastolic blood pressures over 110 mm Hg.Women developing severe hypertension were older, more obese, and of higher parity than those with mild hypertension and there was a high incidence of previous toxaemia of pregnancy in the hypertensive group.The results show that in women on oral contraceptives changes in blood pressure and in metabolic functions tend to be correlated with one another, and are consistent with the hypothesis that oral contraception induces a primary biochemical effect whose expression in the individual is determined by intrinsic factors including genetic constitution, age, weight, and parity.  相似文献   

9.
A number of equations for the various population control policies are worked out for a desired reduction in the rate of growth. At the ages of 25 and 30 respectively, 61 and 97% of contraceptive users are necessary to reduce the present rate of growth of 0.026 to 0.010. While at the age of 25 about 69 and 76% contraceptive users are required for the same reduction in the rate of growth, assuming that 25 and 50% would discontinue the use of contraceptives at the age of 35. The birth and death rates in the study area (Varanasi Rural) have remained almost constant for several years, justifying the assumption of a stable population. This study emphasises the need for the use of contraceptive devices at two or more age levels.  相似文献   

10.
Between 1 December 1968 and 31 December 1971 345 women aged 16-39 years with a lump in the breast (90 malignant and 255 benign) were interviewed at five London teaching hospitals together with 347 matched controls suffering from acute medical or surgical conditions or admitted to hospital for routine elective surgery. Questions were asked about each patient''s medical, obstetric, menstrual, contraceptive, and social histories.The data do not suggest that the use of oral contraceptives is related in any way to the risk of breast cancer but provide some evidence that the preparations may actually protect against benign breast disease. This protective effect is largely confined to women who continue to use oral contraceptives and have used them altogether for more than two years. Such women appear to have only about 25% as great a risk of being admitted to hospital for a breast biopsy as women who have never used oral contraceptives at all.  相似文献   

11.
Globally, unplanned pregnancies and sexually transmitted infections (STIs) persist as significant threats to women's reproductive health. Barriers to the use of modern contraceptives by women might inhibit uptake of novel woman-controlled methods for preventing STIs/HIV. Use of modern contraceptives and perceptions and attitudes towards contraceptive use were investigated among women in Antananarivo, Madagascar, using qualitative research. The hypothetical acceptability of the diaphragm--a woman-controlled barrier contraceptive device that also holds promise of protecting against STIs/HIV--was assessed. Women consecutively seeking care for vaginal discharge at a public health clinic were recruited for participation in a semi-structured interview (SSI) or focus group discussion (FGD). Audiotaped SSIs and FGDs were transcribed, translated and coded for predetermined and emerging themes. Of 46 participating women, 70% reported occasional use of male condoms, mostly for preventing pregnancy during their fertile days. Although women could name effective contraceptive methods, only 14% reported using hormonal contraception. Three barriers to use of modern contraceptives emerged: gaps in knowledge about the range of available contraceptive methods; misinformation and negative perceptions about some methods; and concern about social opposition to contraceptive use, mainly from male partners. These results demonstrate the need for programmes in both family planning and STI prevention to improve women's knowledge of modern contraceptives and methods to prevent STI and to dispel misinformation and negative perceptions of methods. In addition, involvement of men will probably be a critical component of increased uptake of woman-controlled pregnancy and STI/HIV prevention methods and improved health.  相似文献   

12.
This study examines the association between contraception use and intimate partner violence (IPV) among women of reproductive age in Bangladesh. The observational study of 10,996 women used the chi-squared test and logistic regressions to assess the associations. Almost 80% of all respondents had used contraceptives at some point in their lives. About half of the respondents (48%) were victims of physical violence, while 11% experienced sexual abuse from their husbands. Urban residents, higher educated women and women aged 20-44 were more likely to use contraceptives than their peers in rural areas, those with lower education and those in their late forties (45-49 years). Women exposed to physical violence were almost two times (OR 1.93, CI 1.55-2.41) more likely to use contraceptives compared with their non-abused peers. Sexual abuse had no significant association with contraceptive use. Physical violence is a predictor for higher levels of contraceptive use among women in Bangladesh. The findings emphasize the importance of screening for IPV at health care centres. The differences in urban and rural contraceptive use and IPV exposure identified by the study have policy implications for service delivery and planning.  相似文献   

13.

Purpose

To estimate the number of venous thromboembolic events and related-premature mortality (including immediate in-hospital lethality) attributable to the use of combined oral contraceptives in women aged 15 to 49 years-old between 2000 and 2011 in France.

Methods

French data on sales of combined oral contraceptives and on contraception behaviours from two national surveys conducted in 2000 and 2010 were combined to estimate the number of exposed women according to contraceptives generation and age. Absolute risk of first time venous thromboembolism in non-users of hormonal contraception and increased risk of thromboembolism in users vs. non-users of hormonal contraception were estimated on the basis of literature data. Finally, immediate in-hospital lethality due to pulmonary embolism and premature mortality due to recurrent venous thromboembolism were estimated from the French national database of hospitalisation and literature data.

Results

In France, more than four million women are daily exposed to combined oral contraceptives. The mean annual number of venous thromboembolic events attributable to their use was 2,529 (778 associated to the use of first- and second-generation contraceptives and 1,751 to the use of third- and fourth-generation contraceptives), corresponding to 20 premature deaths (six with first- and second-generation contraceptives and fourteen with third- and fourth-generation contraceptives), of which there were eight to nine immediate in-hospital deaths. As compared to the use of first- and second-generation contraceptives, exposure to third- and fourth-generation contraceptives led to a mean annual excess of 1,167 venous thromboembolic events and nine premature deaths (including three immediate in-hospital deaths).

Conclusions

Corrective actions should be considered to limit exposure to third- and fourth-generation contraceptives, and thus optimise the benefit-risk ratio of combined oral contraception.  相似文献   

14.
ABSTRACT I projected costs for several contraceptive treatments that could be used by the Bureau of Land Management (BLM) to manage 4 wild horse (Equus caballus) populations. Potential management alternatives included existing roundup and selective removal methods combined with contraceptives of different duration and effectiveness. I projected costs for a 20-year economic life using the WinEquus© wild horse population model and state-by-state cost estimates reflecting BLM's operational expenses. Findings revealed that 1) currently available 2-year contraceptives in most situations are capable of reducing variable operating costs by 15%, 2) experimental 3-year contraceptives may be capable of reducing costs by 18%, and 3) combining contraceptives with modest changes to herd sex ratio (e.g., 55–60% M) could trim costs by 30%. Predicted savings can increase when contraception is applied in conjunction with a removal policy that targets horses aged 0–4 years instead of 0–5 years. However, reductions in herd size result in greater variation in annual operating expenses. Because the horse program's variable operating costs make up about half of the total program costs (which include other fixed costs), contraceptive application and management can only reduce total costs by 14%, saving about $6.1 million per year. None of the contraceptive options I examined eliminated the need for long-term holding facilities over the 20-year period simulated, but the number of horses held may be reduced by about 17% with contraceptive treatment. Cost estimates were most sensitive to the oldest age adoptable and per-day holding costs. The BLM will experience significant cost savings as carefully designed contraceptive programs become widespread in the wild horse herds it manages.  相似文献   

15.
The results of a previous study of the use of oral contraceptives by married women discharged from hospital with a diagnosis of thromboembolic disease in the years 1964–6 were reported by us last year. The present paper adds results relating to patients discharged during 1967 and a few data, that could not be sought previously, for patients discharged with cerebral or coronary thrombosis from three of the hospitals in the earlier period.Of 84 patients with deep-vein thrombosis or pulmonary embolism 42 (50%) had used oral contraceptives during the month preceding the onset of their illness, while only 23 of the 168 controls (14%) had done so. No differences in risk were found either for the types of preparation or for the duration of use. After allowance for age and height, the patients with venous thromboembolism were about 10 lb. (4,535 g.) heavier than the control patients, irrespective of whether they were using oral contraceptives or not. No appreciable difference was found between the smoking habits of patients with and without venous thromboembolism treated during 1967, nor between women who were using oral contraceptives and those who were not. The trend in hospital admissions for venous thromboembolism with time corresponded to the trend in the use of oral contraceptives, and there was no evidence to suggest that the number of admissions was affected by publicity about the risk of using the preparations. Of 19 patients with cerebral thrombosis 11 (58%) had been using oral contraceptives, compared with an expected figure of 3.5 from the experience of the control subjects. All the published data (clinical, angiographic, and post-mortem) show that the thrombosis affects the cerebral arteries rather than the cerebral veins. Of 17 patients with coronary thrombosis 2 (12%) had been using oral contraceptives, compared with an expected figure of 2.1. The patients with coronary thrombosis smoked more than the control patients and were, on average, 8.3 lb. (3,765 g.) heavier than control women of the same age and height.The new evidence strengthens the belief that oral contraceptives are a cause of venous thromboembolism and cerebral thrombosis but does not indicate that they are a cause of coronary thrombosis.  相似文献   

16.
Introduction.?Heavy menstrual bleeding (HMB) and the spotting and bleeding (S/B) associated with the use of hormonal contraceptives are distinct entities affecting endometrial vasculature and hemostasis. Materials and methods.?An overview of the major etiologies and potential treatments for each condition is provided. Results.?HMB is potentially caused by several different hemostatic dysfunctions. Combination oral contraceptives, levonorgestrel-releasing intrauterine system, non-steroidal anti-inflammatory drugs, and anti-fibrinolytics all have been shown to have some degree of efficacy in treating HMB. The basic cause of HMB is unknown in the majority of cases. Endometrial S/B related to hormonal contraceptives is a common occurrence and may well have a common etiology in altered angiogenesis resulting in abnormal blood vessels with fragile vessel walls. There is no effective treatment for this problem. Conclusions.?Medical therapy for HMB is limited and effective for reducing blood loss during menstruation. There is no effective treatment for the S/B associated with hormonal contraceptives.  相似文献   

17.
Oral contraceptives have many advantages, but sometimes also have side effects which can cause users to switch appropriately or inappropriately to less effective methods or abandon contraception. In Brazil, 2/3 of married women of childbearing age were using contraception in 1981, and 1/2 of these were using orals. Contraceptive behavior following reported side effects in users of oral contraceptives in Southern Brazil is examined in this study, in relation to diverse factors. Among 2904 currently-married women, aged 15-44, almost 75% reported that they had used the pill at some time, and of these, 45.6% were still doing so. Data on perceived side effects were gathered for all women. There was no independent medical evaluation of the effects, so the data did not necessarily represent actual prevalence of pill related problems. Women who reported problems with the pill were less likely to be current users (25%) than women who did not (65%). However, overall contraceptive prevalence was about the same in both groups (66.2% and 67.0% respectively), indicating that women who stop using oral contraceptives usually switch to another method. However, they are more likely to be using traditional methods than women in the general population, especially if they want more children. Termination of pill use varies little according to the type of problem reported. Women with problems who sought medical attention were more likely to stop using the pill, and 82.4% of women advised to stop by their physician did so, but the major factor affecting discontinuation was the reported experience of a problem. The most frequently reported problems were headaches (38.1%), nausea (34.1%), nervousness (27.9%), and vertigo (18.3%). Physician intervention should help to avoid women's abandoning oral contraceptives unnecessarily.  相似文献   

18.
《BMJ (Clinical research ed.)》1981,282(6282):2089-2093
The incidence of breast cancer was studied among women taking part in the continuing cohort study organised by the Royal College of General Practitioners. An overall relative risk of 1.19 (not significant) was found in those who had used oral contraceptives. The risk ratio in women under 35 years old was 2.81, but this too was not significant. There was evidence that the estimated increased risk for younger women could be a chance occurrence. No convincing evidence of any adverse effects of oral contraceptives on breast cancer has been shown, but because of the long latent period of this tumour there is a need for longer observation.  相似文献   

19.
Depression, headaches, and libido were rated in 272 women before starting a contraceptive method and at intervals during the first year of use—54 were fitted with an intrauterine device (I.U.D.) and 218 used one of three oral contraceptives. Side effects caused 25% of the oral contraceptive group and 13% of the I.U.D. group to stop the method. Depression, headaches, and loss of libido were the most common reasons for stopping oral contraceptives and breakthrough bleeding was the most common reason for stopping the I.U.D.The group of women who stopped or changed their oral contraceptives during the survey were compared with the group who remained on the same oral contraceptive throughout. The former had higher mean depression and neuroticism scores at the first clinic visit and contained more women with a history of premenstrual weepiness, depression during pregnancy, outpatient psychiatric treatment, and treatment with antidepressants. Changes in the depression, headache, and libido ratings throughout the survey are presented.  相似文献   

20.
H. Grauer 《CMAJ》1974,111(10):1083-1087
A group of 25 women who had had two or more therapeutic abortions was compared with a control group of 100 women who had had only one abortion. The two groups could not be distinguished on the basis of the available demographic data. Emotional problems that interfere with the proper utilization of contraceptives were apparent in the index group and 76% of patients in this group had a primary psychiatric disorder as compared with 52% in the control group. The most common psychiatric diagnosis in the index group was chronic depressive reaction. A therapeutic abortion in the index group did not prompt an increased or more effective utilization of contraceptives.  相似文献   

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