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PubMed2003

Combined hormonal versus nonhormonal versus progestin-only contraception in lactation.

BACKGROUND: Contraception for women who are breastfeeding is a public health issue of global importance. Each year over 100 million women make decisions about beginning or resuming contraception after childbirth. These decisions include both the choice of contraceptive method and the time at which its use begins, both of which continue to be debated by experts. Choices of contraception may be limited for lactating women due to concerns about hormonal effects on quality and quantity of milk, passage of hormones to the infant, and infant growth. Ideally, the contraceptive method chosen should not interfere with lactation. Additionally, because the return of menstruation and ovulation can be unpredictable in breastfeeding women, the timing of contraception initiation is important. OBJECTIVES: To determine the effect of combined oral contraceptives and progestin-only contraceptives on lactation. The a priori hypothesis is that combined oral contraception impairs lactation, making it less appropriate than progestin-only or nonhormonal contraception for breastfeeding women. SEARCH STRATEGY: We used PUBMED, POPLINE, EMBASE, LILACS, and Cochrane Controlled Trials Register computer searches, supplemented by review articles and contact with investigators. SELECTION CRITERIA: We sought all randomized controlled trials, reported in any language, that included any form of hormonal contraception compared with another form of hormonal contraception, nonhormonal contraception, or placebo during lactation. Hormonal contraception could include combined oral or injectable contraceptives, progestin-only oral or injectable contraceptives, hormonal implants, or hormonal intrauterine devices. Study participants included breastfeeding women of any age or parity who desired contraception. DATA COLLECTION AND ANALYSIS: We evaluated the methodological quality of each report and sought to identify duplicate reporting of data from multicenter trials. We abstracted data onto data collection forms. Principal outcome measures included quantity of milk; biochemical analysis of milk composition; initiation, maintenance and duration of lactation; infant growth; efficacy of contraceptive method while breastfeeding; and timing of contraception initiation and its effects on lactation. Because the trials did not have uniform interventions, often lacked quantifiable outcomes, and had poor methodological quality, we could not aggregate the data in a meta-analyses. MAIN RESULTS: Seven reports from five randomized controlled trials met our inclusion criteria. Most of the five trials did not specify their method used to generate a random sequence, method of allocation concealment, blinding of treatments, or use of an intention-to-treat analysis. Additionally, high loss to follow-up rates invalidated at least two studies. The findings from two reports comparing oral contraceptives to placebo during lactation were conflicting. Another trial found no inhibitory effects on lactation from progestin-only contraceptives. Finally, the WHO trial found no effect of progestin-only contraceptives on lactation but a decline in breast milk volume from combination contraceptives during lactation. High loss to follow-up rates, however, undermine the credibility of the WHO trial. No significant differences in infant growth or weight appeared in any of the included trials as a result of the use of hormonal contraception during lactation. REVIEWER'S CONCLUSIONS: Evidence from randomized controlled trials on the effect of hormonal contraceptives during lactation is limited and of poor quality; results should be interpreted with caution. The existing randomized controlled trials are insufficient to establish an effect of hormonal contraception, if any, on milk quality and quantity. Evidence is inadequate to make recommendations regarding hormonal contraceptive use for lactating women. At least one properly conducted randomized controlled trial of adequate size is urgently needed to address this question.

Contraceptives, Oral, Combined↗
PubMedDate not supplied

Fertility and contraception in the Marshall Islands.

Data on fertility and contraception in Micronesian women in the Marshall Islands were collected during a women's health survey in 1985. High total fertility rates were found. The reproductive pattern of many Marshallese women is one that has been associated with adverse health consequences: pregnancies in teenagers and in women over 39 years, high parities of four or more births, and short birth intervals. The practice of breastfeeding is declining in younger women. The prevalence of contraceptive use is low, and the availability of reversible methods is limited. Most contraceptive nonusers would like to practice contraception, but are inhibited by the lack of information about family planning. It is suggested that more attention needs to be given to family planning services in the Marshall Islands, in particular to improving the availability of reversible methods of contraception and of information about family planning. Further research is also needed on how family planning services might best be organized to maximize participation by women and their partners who wish to use such services.

Adolescent↗
PubMed1990

Predicting contraceptive method usage among women in west Scotland.

Users of the six major methods of contraception are compared across a broad range of variables using data from a community sample. Differences between the groups were apparent for a range of socioeconomic and reproductive variables, and current users of the various methods also differed in their past use of contraception. Users of barrier methods fared particularly well. Few differences were observed for current health status or for the sociocultural variables examined, although users of natural methods differed from all others in their religious affiliation and commitment. Discriminant analysis showed that the most predictive variables distinguishing women who had opted for permanent methods of contraception (female sterilization and vasectomy) were the woman's stated reason for using her current method and her past contraceptive patterns; the inclusion of social, health and reproductive indicators did little to improve the prediction. It is argued that heightened expectations for contraceptive efficacy in the face of increasing concerns about long-term health consequences have contributed to the increased use of permanent methods.

Adult↗
PubMed1996

Contraceptive practice and attitudes in Sweden 1994.

OBJECTIVE: To investigate current contraceptive practice in Sweden and Swedish women's attitudes towards various contraceptive methods. METHODS: In 1994, a random sample of Swedish women (n = 2330), aged 15-45 years (stratified according to age and geographic distribution), were invited by telephone to participate in the study. Women (n = 1788) who accepted the invitation to participate were sent a postal questionnaire. RESULTS: Completed questionnaires were returned by 1422 women (overall response rate: 61.0%). The sample was somewhat skewed towards higher educational level, but in other demographic respects no great deviations from the parent population were observed. The distribution of contraceptive methods in fertile, sexually active women who wished to avoid pregnancy was as follows: oral contraceptives (OCs) 33%, OC plus barrier method 5%, intrauterine device 21%, barrier methods 23%, sterilization 5% (female 3%; male 2%) and injectable steroids 2%. The overall pattern of contraceptive use in women aged 15-45 years had changed very little compared to results of a similar survey performed in 1987. However, the use of less effective methods (periodic abstinence, coitus interruptus and no method grouped together) was considerably lower among teenagers in 1994 (3%) than in 1987 (18%). The use of these traditional methods was still high in women aged over 35 years (15-17%). A large number of women considered medical methods of contraception to be reliable and easy to use but many were concerned about the safety for health of medical methods. CONCLUSIONS: Contraceptive practice changed towards more frequent use of medical, effective methods among young Swedish women, but not in the total female population. The latter was among others related to the relatively high use rates of less effective methods among women aged over 35. Women were concerned about the health safety of medical methods and relatively low percentages of women reported having received advice from health care professionals to use effective methods.

Adolescent↗
PubMed1994

Sex, drugs, relationships, contraception, and fears of disease on a college campus over 17 years.

Sexual behavior was surveyed in 1991 for the fourth time in 17 years at a northeastern college with 98 male and 148 female participants. Variables included virginity, religiosity, relationship to parents, relationship to last sex partner, sex philosophy, attractiveness, drug use, contraceptives used, fear of AIDS and effect of this fear on behavior. Results indicated a 91% nonvirginity rate for men, 76% for women. Both genders initiated sex at the same age. Men exhibited a more liberal sexual philosophy. Neither gender had a sexual double standard. Women's attractiveness, but not men's, related to nonvirginity. Relationship with parents was not associated with virginity, but religiosity was. Drug use was related to nonvirginity. Frequent drug users had less commitment to last sex partner than did infrequent users. Nondisease-protective contraceptive methods decreased. Despite fear of AIDS, only one-third of the students practiced "safe sex" consistently, and men were less concerned with practicing it than women. Commitment has not increased since the 1986 survey.

Adult↗
PubMed1997

[The use of the preparation Cilest in the practice of the Bulgarian Association for Family Planning].

Data are presented from a questionnaire study on the sexual activity of Bulgarian teenagers as well information on the contraceptive methods chosen by them. The authors inform in short about the activities of the Bulgarian Association for Family Planning (BAFP). Analyses are made of the data obtained from BAFP card-index for the last two years. Information is given on the number of observed cycles, types of applied contraceptive method, aims of their application (contraception, treatment of acne, menstrual disturbances etc.). The attention was concentrated on the third generation contraceptive pills Cilest, on the age of patients, as well as on the adverse effects--change in blood pressure, body-weight changes, intermenstrual bleeding, hairiness, breast problems, paraclinical changes, etc. Underlined is the number of teenagers who seen the BAFP help on problems of contemporary contraception. The observed cycles show a very small percentage of adverse effects with hormonal contraception, mainly during the first 2 of 3 cycles, with predominance of intermenstrual bleeding. No body-weight changes or increased hairiness were observed.

Adolescent↗
PubMed1988

Determinants of menstrual bleeding patterns among women using natural and hormonal methods of contraception. I. Regional variations.

Records of the occurrence of vaginal bleeding were obtained from women using either a natural method of contraception or one of four types of hormonal contraceptive. The relationships between their bleeding patterns and a number of demographic variables were examined, with the aim of identifying subgroups of women who, if they used a particular hormonal method of contraception, would be likely to suffer more or less disruption to their bleeding pattern than the 'norm'. Within contraceptive method, bleeding patterns were more closely related to the women's geographical region of residence than to any other factor. Some of the differences between regions were consistent across contraceptive methods. European women tended to have more bleeding/spotting days than women in other regions; Latin American women had relatively short episodes and long bleeding-free intervals, whether they were using the ovulation method, combined pills or a vaginal ring. Other differences were method-specific. Women using combined pills in India or Pakistan had fewer spotting episodes than women using the same method elsewhere; those using progestogen-only pills had more. Regional variations in bleeding patterns were particularly marked among women using DMPA, and increased over time: by their fourth injection interval, 25% of European women had amenorrhea, as compared with 72% of subjects in North Africa. These findings need to be confirmed by carefully controlled studies of menstrual bleeding patterns and their acceptability in various ethnic groups. The results would be valuable in counselling new contraceptive acceptors, and could eventually guide the choice of methods for introduction into national family planning programmes.

Administration, Intravaginal↗
PubMed1987

[A case study on the fertility and contraceptive practice of urban women].

"This study analyzes the fertility characteristics and the practise of contraceptive methods among married women aged 15-49 living in Izmit [Turkey] urban area. While the average pregnancies and the number of living children are lower than the average for overall Turkey, the use of contraceptive methods [is] found to be higher. Only [one third] of the women exposed use traditional methods. No significant relation is found between education level or number of living [children] and use of contraceptive methods. 66.5% of all women agree that due to medical or social reasons, legal abortions must be made in hospitals." (SUMMARY IN ENG)

Abortion, Induced↗