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1.
A multicenter survey of 400 married Filipino women 15-40 years of age conducted in 1986 by Family Health International and the International Health Foundation provided valuable information on contraceptive use in the Philippines, as well as factors influencing such practices. The respondents, who were drawn from 10 urban communities in Metro Manila and 10 rural communities in Nueva Ecija Province, averaged 31.5 years of age and had a mean number of 2.9 children. 32% of respondents indicated they desired another child. 225 women (56%) reported they were using no method of contraception. 59 (14%) were protected from pregnancy by tubal sterilization or vasectomy. 77 women (19%) were oral contraceptive (OC) users, and 8 (2%) were IUD users. Only 1 respondent was using a long-acting contraceptive. 3 women used spermicides, 21 (5%) used condoms, 25 (6%) practiced rhythm, and 30 (3%) of the women's husbands practiced withdrawal. Overall, 27% of contraceptive users in this sample used more than 1 method. 26% had been using a contraceptive method for 1-3 years and another 46% for more than 3 years, indicating consistent acceptance of family planning. A sequential trend of nonuse, OC use, and finally sterilization was observed. OC use was highest among women in their late 20s with 2-3 children. Urban-rural residence and socioeconomic factors had little impact on OC use. An encouraging finding was that only 25% of respondents believed that the pill poses important health risks and 61% were aware that pregnancy and childbirth involve greater health risks than OC use. This finding is in opposition to the extremely high levels of misinformation about the dangers of OC use identified in other surveys in developing countries and probably reflects the fact that 77% of women in the present study reported receiving advice on contraception from family planning professionals.  相似文献   

2.
This study investigated the levels, trends and determinants of contraceptive use-failure in Matlab, Bangladesh, using a set of prospective data on 25,960 women of reproductive age. The data were extracted from the Record Keeping System (RKS) of Matlab for the period 1978-94. If there was any live birth during the use or within 7 months after the discontinuation of use, it was considered as a failure. The life table technique and hazard model were used as analytical tools. The results suggest that use-failure for pills, IUDs (TCu 200) and injectables and other temporary methods increased from 1978 to 1988, but began to decline after 1988. The cumulative probability of first-method failure within 1 year of method acceptance of the cohort of 1990-94 acceptors was 12.9% for pills, 2.0% for IUDs, 0.5% for injectables, 22.0% for condoms and 13.4% for 'other' methods (sampoon, foam, jelly and traditional methods). For pills, condoms and 'other' methods, the likelihood of failure declined with the duration of use; by contrast, the probability of an IUD failure increased over time, peaking at 3 years of use. The injectables maintained a low likelihood of failure regardless of the duration of use. The quality of Community Health Workers' (CHWs) performance was associated with the risk of failure of all temporary methods except condoms; women's background characteristics associated with failure varied by method. The effect of the quality of the CHWs' performance and the background variables on failure did not change much over time. It is felt that contraceptive failure deserves the serious attention of programme managers and policy makers to make the Bangladesh national family planning programme more successful.  相似文献   

3.
The purpose of this paper is to review the patterns of contraceptive use in Australia, using data from a nationally representative sample of 5872 women aged 18 to 49. This survey was conducted by the Australian Bureau of Statistics in 2001 as part of the National Health Survey. Results of the analysis indicate that the oral contraceptive pill and condom were the two most frequently used methods. More than 76% of the respondents reported having ever used the pill. Over 23% of women were currently using condoms; of these 80% of the condom users used them for contraception - this included 36% who used condoms for both protection against infection and for contraception - and the remainder used them only for protection. Withdrawal was the third most popular non-surgical method up to age 40. Few women used IUDs, injections or diaphragms. Just over 3% of the respondents were using natural methods with the highest rate reported among those in their 30s. The 'morning-after pill' was reported mostly by women aged 18-24; however, there was no evidence to suggest that it was being used as a primary method of birth control. Contraceptive use declined in older women who turned to sterilization for themselves and/or their partners. Use of the contraceptive pill was somewhat higher among better-educated women, but lower among less-educated women and those from non-English-speaking backgrounds.  相似文献   

4.
This paper attempts to test the dictum that social change begins in better educated, economically well-off and relatively less tradition-bound strata of the urban society and that it then spreads to the lower social strata and eventually affects the rural populations also. It analyzes temporal changes in the prevalence of contraception as reported by female respondents in 2 sample surveys conducted in the city of Lahore during 1963 and 1980. Altogether 1960 ever-married females aged over 15 were interviewed in the 1963 survey and 993 in the 1980 survey. Compared to 1980 respondents, those in the 1963 survey were older, educated and belonged to a medium or high socioeconomic status category. In 1963, 18% of the respondents were not aware of any method of contraception; by 1980 this proportion was reduced to 11%. The most spectacular change was observed in the prortion of respondents who were practising family planning. In 1963, only 7% of the respondents had ever used any method of contraception; this proportion increased to 48% in 1980. Moreover, substantial differences were noted with regard to the methods of contraception used. The use of condoms seems to have declined while that of the IUD the pill, sterilization and withdrawal seems to have increased. It is interesting that abstinence remained an important method of contraception. Use of contraception is found to vary with age, education and socioeconomic status of respondents. The degree of association between these 3 characteristics and contraceptive usage increased substantially from 1963 to 1980. 1980 survey results indicate that current as well as ever use of contraception show an inverted V-shaped pattern with age and parity. The prevalence of contraception increases with age, reaching a maximum of 41% for current users and 63% for ever users in the age group 35-39. A similar pattern is observed in relation to the parity of respondents with a maximum amongst women who had borne 6 children. Education shows a positive association with both the current and ever use of contraception. The pattern of current methods used is very similar to that noted for methods ever used. The only major differences relate to the condom and abstinence which show higher prevalence as current methods. In the 1963 survey religion was the main reason given by those expressing an unfavorable attitude toward family planning. In the 1980 survey questions were asked about the specific reasons of the respondents for never using any method of contraception. The desire for more children was the most commonly given reason and recent marriage was the 2nd most common. The strength of religious opposition to contraception seems to have declined substantially in the 1980 survey.  相似文献   

5.
African men play important roles in the decisions about family life, including fertility and family planning. However, fertility and family planning research and programmes have ignored their roles in the past, focusing only on women's behaviours. Since the 1994 International Conference on Population and Development (ICPD), interest in men's involvement in reproductive health has increased. Unfortunately, data on their knowledge and use of contraception are generally scanty. This paper examines knowledge and use of contraception among ever-married men in Nigeria. A total of 1451 ever-married men aged 18-55 were interviewed in Imo and Ondo States, Nigeria. The findings reveal that men's level of contraceptive knowledge is high in the study areas. About 90% knew at least one method of family planning. Furthermore, the level of contraceptive use among married men is such that men could participate in family planning activities if there were adequate programmes to involve them. Men in the sample areas were found not only to support their spouses' use of contraceptives, but were actually using condoms to delay or prevent pregnancy. Age, education, place of residence, number of living children and being counselled for family planning were identified as key factors determining contraceptive knowledge and use among married men in the study areas. To ensure increased participation of men in family planning, programmes must be designed to educate them on the need for family size limitation and involve them in service delivery, even if only to their male counterparts.  相似文献   

6.
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   

7.
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   

8.
Various national surveys suggest that the % of eligible couples in Bangladesh who are using traditional methods of contraception has been growing. This article presents detailed information on knowledge and use patterns of traditional methods and compares the use patterns of traditional and modern methods of contraception. The data are derived from the 1981 Contraceptive Prevalence Survey and information collected from a nationally representative sample of ever married women aged under 50, by way of field interviews using female interviewers. Quality of data was checked at different phases of the survey. Over 96% of the women reported that they knew at least 1 traditional method of contraception. The safe period was the most well known method (36.5%); about 30% reported knowledge of abstinence and 22% knew about withdrawal. Compared with modern methods, where knowledge declined with increased age, the knowledge of traditional methods shows no systematic pattern by age. Respondents with primary and higher education have higher knowledge of traditional methods than women who have never been to school. A similar pattern exists for employment status; non-Muslim women have consistently higher levels of knowledge than Muslim women. Data on patterns of use suggest that about 36% have used at least 1 contraceptive method, 15% having used traditional methods and 20.4% modern methods. The number of women who have used traditional methods increases from ages 20 to 44 and then declines. Use of traditional methods is relatively higher by the number of living children than by the number of children ever born. A similar pattern of association between background characteristics (education, employment and religion) and contraceptive knowledge is evident regarding level of use. Husband's level of education does not show any significant relationship with the use of traditional methods. The use rate of traditional methods was more than doubled among the women owning land compared to those having no land. The total current use rate of modern methods was higher among women aged 40-44 having relatively higher numbers of living children. As with current use, a positive relationship was observed between the socioeconomic variables and ever use. In general, it is concluded that socioeconomic variables played a dominant role in the decision of couples in choosing various methods of contraception. It is suggested that traditional methods still have an important role in family planning and that this should not be disregarded.  相似文献   

9.
J E Rioux  D Cloutier  P Dupont  D Lamonde 《CMAJ》1986,135(7):747-749
Between 1971 and 1973, 200 Dalkon Shield and 142 Gyne-T 200 intrauterine devices (IUDs) were inserted at the department of obstetrics and gynecology in a large urban hospital. In 1984 retrospective analysis of events associated with the use of these IUDs was done. Hospital and clinic charts were reviewed, and the women were contacted to obtain information on infertility and the outcome of pregnancy after discontinuation of IUD use. The rates of events leading to discontinuation of IUD use 2 years after insertion were similar in the two groups except for that of planned pregnancy, which was higher in the Dalkon Shield users (p less than 0.05). The rates of accidental pregnancy per 100 women were 3.8 for the Dalkon Shield users and 1 for the Gyne-T 200 users. The rates of pelvic inflammatory disease (PID) based on all cases of PID and follow-up information were similar in the two groups. There were no differences between the two groups in outcome of pregnancy with the IUD in situ or after expulsion or removal of the IUD because of planned pregnancy or other reasons. Infertility rates after discontinuation of IUD use were similar for the Dalkon Shield and Gyne-T 200 users. The results confirm the authors'' opinion that the Dalkon Shield and Gyne-T 200 IUDs are safe and effective methods of intrauterine contraception.  相似文献   

10.
During April 1992, 100 repeat clients at the Family Planning Clinic of Calgary Health Services were surveyed to determine whether a free condom distribution program promoting the use of condoms among oral contraception users had increased the probability that such clients would actually also use condoms to prevent the transmission of sexually transmitted diseases (STDs). An age-matched, oral pill-using sample from the Edmonton Birth Control Center was surveyed for comparison. 56% of the survey respondents in both clinics were teens and 39% were age 20-24 years. 89% of Calgary clients and 45% of Edmonton clients reported having received condoms from their respective clinics. The Edmonton clinic offered no free condom distribution program during the pre-survey period. 72% of Calgary clients had either used the free condoms or gave them to other people. 39% of Calgary clinic respondents reported using both condom and pill at last intercourse compared to 29% of Edmonton respondents, a nonstatistically significant difference. A larger and better controlled cost-benefit analysis of free condom distribution programs is warranted given the importance of condom use for STD prevention among users of oral contraception.  相似文献   

11.
Intimate partner violence is widespread worldwide. While assumed to impact women's ability to use contraceptive methods, few data are available to support this claim. In this study, eight focus group discussions were conducted to guide questionnaire development and to provide contextual information. Participants were women who were currently using the pill and women who had used the pill previously. In addition, 300 women were interviewed who initiated oral contraceptive pill use between December 1995 and April 1996. Participants were interviewed 3-6 months later to investigate the role intimate partner violence played in covert pill use and pill discontinuation. Special study procedures for asking women questions about violence were employed. Nineteen per cent of the women interviewed were using the pill covertly. The odds of covert pill use were four times higher in El Alto and La Paz than in Santa Cruz. Women who used the pill covertly were more likely to have experienced method-related partner violence (OR = 21.27) than women whose partners knew of their pill use. One-third of the women had discontinued pill use at the time of the interview. In the final multivariate analysis, having experienced side-effects (OR = 2.37) was a significant predictor of pill discontinuation and method-related partner violence was marginally predictive (OR = 1.91; 95% CI 1.0-3.66). While efforts are ongoing to incorporate men into family planning programmes, some male partners oppose, and in some situations violently oppose, contraceptive use. The needs of women with these types of partners must not be overlooked.  相似文献   

12.
Factors contributing to India's vulnerability to the AIDS epidemic include pervasive poverty, low levels of education and high gender stratification. This study uses data collected in the 1998-99 National Family Health Survey-2 (NFHS-2) to investigate the relationship between aspects of women's autonomy and four measures of HIV-related knowledge and behaviour--awareness and knowledge of HIV/AIDS, condom awareness and condom use--in three culturally contrasting states in India: Kerala (n=2884), Karnataka (n=4357) and Uttar Pradesh (n=8981). The NFHS-2 is a nationally representative survey of India, with a sampling scheme that was designed such that each state sample can be generalized back to represent ever-married women aged 15-49 living in the state. Kerala scores highest in the four health outcome measures, followed by Karnataka and then Uttar Pradesh, but condom use is lowest in Karnataka. Kerala also leads in the four dimensions of autonomy examined and in socio-demographic status, followed again by Karnataka and Uttar Pradesh. Despite these observed differences, in all three states, women with greater autonomy as measured by this study were more likely to be knowledgeable about AIDS and condoms and to use condoms, after controlling for socio-demographic factors. These results concur with other studies focusing on women's autonomy and health outcomes around the world, and point to the importance of incorporating a gender-based approach to AIDS prevention programmes in India.  相似文献   

13.
Pregnancy prevention techniques are classified into 2 general categories as the coitus-connected and coitus-independent. The former include rhythm, withdrawal, condom, and foam while the latter include such methods as oral contraception, IUDs, and male and female sterilization. The use of contraception hinges on motivation and the acceptability of the method. This article is a report on 1 particular study where data was collected in 1971-1972 through 1321 interviews resulting from a series of audits of family planning clinics with the purpose of determining the accuracy of information reported in clinic records and ascertaining the number of acceptors who had discontinued use of a family planning method or moved from the area served by the clinic. The findings revealed that: 1) Coitus-independent methods are more effective in the prevention of pregnancy that coitus-dependent ones, 2) Women who change from a coitus-dependent method are more likely to change to a coitus-independent method, while the changes from the latter method are usually to a method in the same general category, 3) In this population the IUD provides the maximum protection from conception with the minimum likelihood of program dropout.  相似文献   

14.
In 1987, a questionnaire was sent to 584 undergraduate students at Oxford University requesting information about their sexual behavior and contraceptive practices as well as the impact of acquired immunodeficiency syndrome (AIDS) on both these factors. Of the 374 responders, 65% of the women and 62% of the men had experienced sexual intercourse; 1st intercourse had occurred at ages 16-20 years for 89% of the experienced women and 83% of the men. For 36% of women and 37% of men intercourse had been with 1 partner only, for 28% of women and 27% of men with 2-3 partners, and for 36% of both men and women with more than 3 partners. 27% of the women reported no contraceptive was used at the time of 1st intercourse. During the 4 weeks preceding completion of the questionnaire, 15% of sexually active female undergraduates reported not using adequate contraception. Users during this period selected the pill (64%), condom (19%), IUD or diaphragm (9%), or withdrawal/rhythm (8%). General knowledge about AIDS was highly accurate among these students. Most students considered themselves to be at lower risk of contracting AIDS than others of their age and sex. Of the 78% of students describing themselves as at lower than average risk, 14% had had intercourse with more than 3 partners, while 50% of the 20% of students who ranked themselves as at average risk had this number of partners. Only 2% placed themselves as at above average risk, and 65% of these students had had more than 3 sexual partners. Of students who were sexually active, 35% of the females and 44% of the males indicated they are now more likely to use a condom because of fear of AIDS. 49% of the females and 30% of the males indicated they had, or would have, fewer sexual partners because of the AIDS risk. However, there was no association between increased likelihood of condom use and the total number of sexual partners and having had intercourse with someone in a high-risk group for AIDS (prostitutes). Overall, however, these findings suggest that the AIDS threat is producing reductions in high-risk behaviors.  相似文献   

15.
Vigorous physical activity (running) has been shown to attenuate the association between diet and body weight. Walking is the most popular physical activity, but is a moderate-intensity physical activity because it requires less than sixfold the energy expenditure of sitting at rest. We therefore examined whether reported distance walked per week affected the relationship of diet to BMI and circumferences of the waist, hip, and chest in 30,014 female and 7,133 male participants of the National Walkers' Health Study. Reported meat and fruit intakes served as indicators of high-risk diets for weight gain. The analyses showed that higher meat and lower fruit intake were significantly and consistently associated with greater BMI and waist circumference at all activity levels. Longer usual walking distance significantly attenuated the concordant relationships of diet with women's BMIs (P < 10(-8)), men's BMIs (P = 0.04), and women's waist (P < 10(-6)), hip (P = 0.0001), and chest circumferences (P < 10(-5)). Compared to walkers who averaged <1.5 km/day, the association of diet with adiposity in subjects who walked ≥1.5 km/day was reduced 21% in women and 31% in men for BMI; 20% in women and 27% in men for waist circumference; 19% for women's hip circumference; and 26% for women's chest circumference. Thus we conclude that diets characterized by high-meat/low-fruit intake were significantly associated with greater BMI, and this association was attenuated by moderate physical activity. The weaker results in men than women probably related to the smaller sample size, and reduced statistical power of the men.  相似文献   

16.
A highly-educated, socially aware group of persons presented themselves for Tay-Sachs screening having learned about it mainly from friends, newspapers, radio, and television but not from physicians or rabbis. After learning that screening was possible and deciding that it is in principle a good idea, and after discussing it with relatives and friends but not with physicians and rabbis, they presented themselves for the test. Although the participants knew that Tay-Sachs is a serious disease and that Jews are vulnerable, few of them knew much about the genetics of the disease, its frequency, or the incidence of the carrier state. This experience of screening for Tay-Sachs carriers suggests the need for physicians to learn the relation of genetics to preventive medicine, and for the public to learn more about the biology of man.  相似文献   

17.
OBJECTIVE--To measure the prevalence of HIV and to describe established risk factors in female prostitutes. DESIGN--A cross sectional survey. SETTING--A genitourinary medicine clinic, streets, and magistrates'' courts in London. SUBJECTS--280 female prostitutes recruited between April 1989 and August 1991. MAIN OUTCOME MEASURES--Infection with HIV-1, reported risk behaviours, and prevalence of sexually transmitted infections. RESULTS--228 of the women had HIV tests, and two (0.9% (95% confidence interval 0% to 2.1%)) were infected with HIV-1. Reported use of condoms was high for commercial clients and low for non-paying partners: 98% (251/255) of women used condoms with all clients and 12% (25/207) with non-paying partners for vaginal intercourse. Twenty two women were current or past injecting drug users. Of the 193 women examined for sexually transmitted infections, 27 had an acute infection (gonorrhoea, chlamydia, trichomonas, or primary genital herpes) at the time of interview. Infection was associated with younger age and increasing numbers of non-paying sexual partners, but not with duration of prostitution, numbers of clients, or reports of condom failures. When age and numbers of non-paying partners were analysed by logistic regression they remained significantly associated with sexually transmitted infections. CONCLUSIONS--A large and diverse sample of prostitutes had a low prevalence of infection with HIV and high levels of use of condoms in commercial sex. There was a significant risk of other sexually transmitted infections associated with prostitutes'' non-commercial sexual relationships, in which unprotected sex is common. Interventions to reduce the risk of sexually transmitted infections in prostitutes should address both commercial and non-commercial sexual partnerships.  相似文献   

18.
Oral contraceptives (OC) are suspect to play a role in systemic lupus erythematosus (SLE). It has previously been shown that OC can induce immune reactions in a number of normal women. Antiethinylestradiol antibodies (anti-EE Ab) have been detected with a radioimmunoassay method in 25-30% of healthy OC users. In the present paper, a comparative study of 123 controls and 55 SLE patients, with or without OC use, indicates (1) that in the disease-free group, anti-EE Ab were detected in 30% of OC users, and only in OC users; (2) that in the SLE group, anti-EE Ab were observed in 57% of female OC users, and, surprisingly, in 13% of men also, a finding already reported by other authors.  相似文献   

19.
Men who have sex with men (MSM) may account for most new HIV infections in Lebanon, yet little is known about the factors that influence sexual risk behavior and HIV testing in this population. Qualitative interviews were conducted with 31 MSM living in Beirut, and content analysis was used to identify emergent themes. Mean age of the participants was 28.4 years, and all identified as either gay (77%) or bisexual (23%). Half reported not using condoms consistently and one quarter had not been HIV-tested. Many described not using condoms with a regular partner in the context of a meaningful relationship, mutual HIV testing, and a desire to not use condoms, suggesting that trust, commitment and intimacy play a role in condom use decisions. Condoms were more likely to be used with casual partners, partners believed to be HIV-positive, and with partners met online where men found it easier to candidly discuss HIV risk. Fear of infection motivated many to get HIV tested and use condoms, but such affect also led some to avoid HIV testing in fear of disease and social stigma if found to be infected. Respondents who were very comfortable with their sexual orientation and who had disclosed their sexuality to family and parents tended to be more likely to use condoms consistently and be tested for HIV. These findings indicate that similar factors influence the condom use and HIV testing of MSM in Beirut as those observed in studies elsewhere of MSM; hence, prevention efforts in Lebanon can likely benefit from lessons learned and interventions developed in other regions, particularly for younger, gay-identified men. Further research is needed to determine how prevention efforts may need to be tailored to address the needs of men who are less integrated into or do not identify with the gay community.  相似文献   

20.
OBJECTIVE--To describe the epidemiology of endometriosis in women attending family planning clinics with special reference to contraceptive methods. DESIGN--Non-randomised cohort study with follow up of subjects for up to 23 years. Disease was measured by first hospital admission rates since endometriosis can be diagnosed with accuracy only at laparotomy or laparoscopy. SETTING--17 family planning centres in England and Scotland. SUBJECTS--17,032 married white women aged 25-39 years at entry during 1968-74 who were taking oral contraceptives or using an intrauterine device or diaphragm. About 99% of the women approached agreed to participate and annual loss to follow up was about 0.3%. MAIN OUTCOME MEASURES--Diagnosis of endometriosis, age, parity, and history of contraceptive use. RESULTS--Endometriosis was significantly related to age, peaking at ages 40-44 (chi 2 for heterogeneity = 30.9, p < 0.001). Endometriosis was not linked to duration of taking oral contraceptives. Nevertheless, the risk of endometriosis was low in women currently taking oral contraceptives (relative risk 0.4; 95% confidence interval 0.2 to 0.7), but higher in women who had formerly taken them (1.8; 1.0 to 3.1 in women who had stopped 25-48 months previously) compared with women who had never taken the pill. A similar pattern was seen for use of intrauterine devices (relative risk 0.4 (0.2 to 0.7) in current users and 1.4 (0.4 to 3.2) in users 49-72 months previously compared with never users). No association was found between endometriosis and use of the diaphragm. CONCLUSIONS--Oral contraceptives seem to temporarily suppress endometriosis. Endometriosis may be diagnosed late in women using intrauterine devices as pain and bleeding occur with both.  相似文献   

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