Future trends in contraceptive prevalence and method mix in the developing world

Contraceptive use and method mix dynamics in Sub-saharan Africa: time trends and the influence of the HIV pandemic

BACKGROUND

Contraceptive use dynamics continue to be of priority in sub-Saharan Africa because of persistently high levels of fertility. This paper focuses on the use of barrier versus non-barrier contraceptive use in sub-Saharan Africa hypothesizing that the HIV pandemic in the region would be responsible for increases in the use of barrier methods over time.

METHODS

This paper uses Demographic and Heath Survey (DHS) data from 32 countries to conduct extensive analysis of trends in contraceptive use and method mix that refers to the distribution of contraceptive methods use among the sexually active population. The paper examines how contraceptive method mix dynamics have changed over time and whether the trends differ by marital status and gender using cross-tabulations. It furthers examines the determinants of method choice using logistic regressions.

RESULTS

The findings indicate that the use of barrier methods, most markedly for unmarried women and men, rose substantially between the late 1980s and late 2000s in the region in tandem with trends in HIV prevalence. The results further show marked differences in method mix by gender with men being more likely to report barrier method use than women.

CONCLUSIONS

The findings indicate shifting preferences in contraceptive choice. The time trend analyses highlight the importance of expanding the focus of contraceptive use studies beyond women in this context as the study finds differing trends for men.

The French pill scare and the reshaping of social inequalities in access to medical contraceptives

While the consequences of various "pill scares" have been relatively well-documented in the public health literature revealing a drop in pill use and a rise in unplanned pregnancies and abortion rates, researchers rarely considered that these controversies would affect women contraceptive practices differently according to their social background. Indeed, social differentiations in reaction to "pill scares" could contribute to reinforce the social gradient in the use of contraceptive methods and choice of visiting the health professionals who prescribe them. These could contribute to an increase in health inequalities on access to contraceptive methods. Using data from three state nationally representative cross-sectional surveys conducted in France in 2010, 2013 and 2016, we studied the changes in women's contraceptive uses around the French "pill scare" that occurred in 2012-2013. We focused on the changes in the use of all contraceptives available under medical prescription (called medical contraceptives) on one hand, and on each specific method (pill, IUD, implant, patch or vaginal ring, and female sterilization) on the other hand according to the women's social background. We saw a social gradient in contraceptives changes. The decline in the use of contraceptive methods available under medical prescription was particularly marked for women from lower and higher classes in which we observe a decrease in pill use between 2010 and 2013, whereas it was observed only between 2013 and 2016 among middle class women. Moreover, while some women from upper class shifted from pill to IUD between 2010 and 2013, this was not the case for their less privileged counterparts. As a consequence, it seems that the French "pill scare" led to the reshaping of social inequalities in access to medical contraceptives.

Knowledge and Parity: Perspectives of Usage of Emergency Contraceptive Pills among Women of a Rural Area of Delhi

Context:

Correct use of emergency contraceptive pills (ECPs) may prevent up to 95% of unwanted pregnancies which may significantly decrease unsafe abortions and maternal mortality.

Aims:

Assessment of knowledge and use of ECPs among women and to explore factors associated with them.

Materials and Methods:

This was a facility-based cross-sectional study. Data were collected using a prestructured, pretested questionnaire from 381 reproductive age women (15–49 years) selected by systematic random sampling. Statistical Package for the Social Sciences version 16 and Epi info (version 7.0.) were used for all statistical analyses. Descriptive analysis was performed, and results were expressed in terms of frequencies and percentages. The Chi-square and Fisher's exact test were used as tests of significance in univariate analysis. Determinants of use of ECPs were identified using logistic regression.

Results:

Of 381 women interviewed, awareness level of ECPs (ever heard about ECPs) was found to be 34% (n = 128). Ever use of emergency contraception was reported by 38 (9.7%). Age (odds ratio [OR] = 3.02, 95% confidence interval [CI] [1.88–4.87]), education (OR = 0.086, 95% CI [0.047–0.158]), husband's education (OR = 0.11, 95% CI [0.067–0.187]), socioeconomic status (OR = 6.14, 95% CI [3.28–11.51]), and family status (OR = 2.6, 95% CI [1.59–4.24]) were found to be significantly associated with the use of emergency contraceptives.

Conclusions:

The study identified that most respondents lack adequate knowledge about ECPs, and ever use of ECPs was very low. Factors that were associated with the use of ECPs were age, literacy, socioeconomic status, and knowledge about the method. Creating a sustainable awareness on ECPs and their use may serve them with power to control their parity.

Emergency contraception: Awareness, attitudes and barriers of Saudi Arabian Women

Objectives:

To assess knowledge, attitude, and barriers about emergency contraception (EC) among married women of child bearing age.

Methods:

A quantitative cross-sectional study was conducted over a 6-month period, commencing in March 2013 at Family Practice Clinics of King Khalid University Hospital (KKUH), Riyadh, Saudi Arabia. Data was collected using a structured pretested questionnaire and analyzed using SPSS version 21.0 statistical software.

Result:

A total of 242 women were enrolled in the study. Only 6.2% (15/242) had some knowledge of EC and of these only two had ever used it. Health care professionals were the least reported source of EC information (6.6%, n=1). Majority (73.3%) had negative attitude toward EC being available over-the-counter without a prescription. The most common barriers to using EC were concerns about possible health effects. Only two women (13.3%) considered religious belief as a major hindrance to its use.

Conclusion:

Awareness of emergency contraception is very low among women of Saudi Arabia. Health care professionals were the least reported source of information, which is a cause for concern. Our findings reveal an urgent need to educate women about EC, keeping in view the social norms and the Islamic values.

Knowledge and attitudes towards use of long acting reversible contraceptives among women of reproductive age in Lubaga division, Kampala district, Uganda

BACKGROUND

Uganda has one of the highest total fertility rates globally and in Sub-Saharan Africa. Her high fertility is mainly attributed to the high unmet need for family planning. Use of Long-acting reversible contraceptives (LARC) is low (13%) in Uganda yet they are the most cost-effective contraceptives. This study aimed to assess the reproductive aged women's knowledge, attitudes, and factors associated with use of LARC.

METHODS

A cross-sectional study was conducted involving 565 women (15-49 years) attending private and public health facilities in Lubaga division, Kampala district. Semi-structured questionnaires were used to measure knowledge, attitudes and factors associated with use of LARC; Intra-Uterine Devices, Implants and Injectables. The outcome variable was current use of LARC. A generalized linear regression model was run in STATA version12.0. Prevalence Risk Ratios for associations between current LARC use and independent factors were obtained and regarded significant at 95% CI with p < 0.05.

RESULTS

Mean age (SD) and current use of LARC was 26.34 (5.35) and 31.7% respectively. Factors associated with current use of LARC were; previous use adj.PRR 2.89; (95% CI 2.29, 3.81), knowledge of implant administration site adj.PRR 1.83; (95% CI 1.17, 2.87), and perception that; male partner decisions positively influence their contraceptive choices adj.PRR 1.49; (95% CI 1.18, 1.88). Contrary, perception that LARC should be used by married women was negatively associated with use of LARC adj.PRR 0.63; (95% CI 0.44, 0.90).

CONCLUSION

Knowledge about site of administration, previous use of LARC and women's attitude that male partners' choice influence their contraceptive decisions were positively associated with current use of LARC. Contrary, the attitude that LARC was for married women was negatively associated with its use. This study suggests a need to strengthen client education about LARC to dispel possible myths and to consider integrating male partner's decision making in contraceptive choices for women.

Oral contraceptives and the periodontium

Oral contraceptives are a safe and effective means of contraception for millions of women worldwide. The first formulations of these drugs contained much higher doses of estrogens and progestins than those available today, and these were associated with an unacceptably high rate of unwanted effects including serious cardiovascular events. In addition, a number of case reports and clinical studies suggested that use of the first generation oral contraceptives was also associated with an increased risk for gingival and/or periodontal disease. Unfortunately, many of these early studies suffered from significant methodological flaws which throw their findings into question. Nonetheless, these studies provided the basis for a perception among the dental profession that oral contraceptives increase the risk for gingivitis and/or periodontitis. Realisation that the adverse events profile of oral contraceptives was dose dependant led to the development of the modern low dose formulations that are in use today. There have been far fewer studies to investigate whether modern oral contraceptives have any impact on the periodontium compared to studies of the early contraceptive formulations, but the quality of the more recent research is undoubtedly better. Following extensive review of the relevant literature and consideration of the historical perspective, the best available evidence strongly supports that oral contraceptives no longer place users at any increased risk for gingivitis or periodontitis. Oral contraceptives should not be viewed as a risk factor for gingival or periodontal disease.

The case for investing in family planning in the Pacific: costs and benefits of reducing unmet need for contraception in Vanuatu and the Solomon Islands

BACKGROUND

Unmet need for family planning in the Pacific is among the highest in the world. Better understanding of required investments and associated benefits of increased access to family planning in the Pacific may assist prioritisation and funding.

METHODS

We modelled the costs and associated health, demographic and economic impacts of reducing unmet need for family planning between 2010-2025 in Vanuatu and the Solomon Islands. Baseline data were obtained from census reports, Demographic and Health Surveys, and UN agency reports. Using a demographic modelling program we compared a scenario of "no change in unmet need" with two distinct scenarios: 1) all family planning needs met by 2020; and, 2) all needs met by 2050.

RESULTS

Meeting family planning needs by 2020 would increase prevalence of modern contraception in 2025 from 36.8 to 65.5% in Vanuatu and 28.5 to 37.6% in the Solomon Islands. Between 2010-2025 the average annual number of unintended pregnancies would decline by 68% in Vanuatu and 50% in the Solomon Islands, and high-risk births would fall by more than 20%, averting 2,573 maternal and infant deaths. Total fertility rates would fall from 4.1 to 2.2 in Vanuatu and 3.5 in the Solomon Islands, contributing to slowed population growth and lower dependency ratios. The direct cost of reducing unmet need by 2020 was estimated to be $5.19 million for Vanuatu and $3.36 million for the Solomon Islands between 2010-2025. Preventing unintended pregnancies would save $112 million in health and education expenditure.

CONCLUSIONS

In small island developing states such as Vanuatu and the Solomon Islands, increasing investment in family planning would contribute to improved maternal and infant outcomes and substantial public sector savings.

National, regional, and global rates and trends in contraceptive prevalence and unmet need for family planning between 1990 and 2015: a systematic and comprehensive analysis

BACKGROUND

Expansion of access to contraception and reduction of unmet need for family planning are key components to improve reproductive health, but scarce data and variability in data sources create difficulties in monitoring of progress for these outcomes. We estimated and projected indicators of contraceptive prevalence and unmet need for family planning from 1990 to 2015.

METHODS

We obtained data from nationally representative surveys, for women aged 15-49 years who were married or in a union. Estimates were based on 930 observations of contraceptive prevalence between 1950 and 2011 from 194 countries or areas, and 306 observations of unmet need for family planning from 111 countries or areas. We used a Bayesian hierarchical model combined with country-specific time trends to yield estimates of these indicators and uncertainty assessments. The model accounted for differences by data source, sample population, and contraceptive methods included in the measure.

FINDINGS

Worldwide, contraceptive prevalence increased from 54·8% (95% uncertainty interval 52·3-57·1) in 1990, to 63·3% (60·4-66·0) in 2010, and unmet need for family planning decreased from 15·4% (14·1-16·9) in 1990, to 12·3% (10·9-13·9) in 2010. Almost all subregions, except for those where contraceptive prevalence was already high in 1990, had an increase in contraceptive prevalence and a decrease in unmet need for family planning between 1990 and 2010, although the pace of change over time varied between countries and subregions. In 2010, 146 million (130-166 million) women worldwide aged 15-49 years who were married or in a union had an unmet need for family planning. The absolute number of married women who either use contraception or who have an unmet need for family planning is projected to grow from 900 million (876-922 million) in 2010 to 962 million (927-992 million) in 2015, and will increase in most developing countries.

INTERPRETATION

Trends in contraceptive prevalence and unmet need for family planning, and the projected growth in the number of potential contraceptive users indicate that increased investment is necessary to meet demand for contraceptive methods and improve reproductive health worldwide.

FUNDING

United Nations Population Division and National University of Singapore.

Assessing an intermittently operated household scale slow sand filter paired with household bleach for the removal of endocrine disrupting compounds

Endocrine disrupting compounds (EDCs) are a contaminant of emerging concern throughout the world, including developing countries where centralized water and wastewater treatment plants are not common. In developing countries, household scale water treatment technologies such as the biosand filter (BSF) are used to improve drinking water quality. No studies currently exist on the ability of the BSF to remove EDCs. In this experiment, the BSF was evaluated for the removal of three EDCs, estrone (E1), estriol (E3), and 17α-ethinyl estradiol (EE2). Removal results were compared to the slow sand filter (SSF) from the literature, which is similar to the BSF in principal but comparisons have revealed differences in removal of other water quality parameters between SSF and BSF. In general, the BSF minimally removed the compounds from spiked lake water as removal was less than 15% for all three compounds, though mass removal much higher than other studies in which the SSF was used. Household bleach was added to the rate was BSF effluent as suggested in order to achieve different Cl- concentrations (0.67, 2.0, 5.0, and 10.0 mg/L) and subsequent removal of EDCs by oxidation was examined. Concentrations were reduced > 98% for all compounds when the Cl- concentration was greater than 5 mg/L. Removal efficiency was > 50% at the 0.67 mg/L Cl- concentration, while almost 70% removal was observed for all compounds at the 2.0 mg/L Cl- concentration.

Contraceptive discontinuation and non-use in Santarém, Brazilian Amazon

In this paper we discuss the causes of non-adherence to reversible contraceptives, especially hormonal methods, among women in rural Santarém in the Brazilian Amazon. The analysis is based on questionnaires with 398 women and visits to health centers. We consider the motives reported by women who: never used contraception; used some method in the past; and who at the time of the survey were using a different method from the ones they used in the past. The results indicate a rejection of hormonal contraception and a preference for female sterilization, an option possibly influenced by the characteristics of health services in the region. The side effects of hormonal contraceptive use reported by part of the interviewees contribute to a generalized fear of the side effects even among women who have never used such methods. To improve women's health services in the Amazon, we recommend further studies of the relationship between reported side effects and available services and prescriptions, as well as an analysis of women's discourse and perceptions.

Ovarian cancer and oral contraceptives: collaborative reanalysis of data from 45 epidemiological studies including 23,257 women with ovarian cancer and 87,303 controls

BACKGROUND

Oral contraceptives were introduced almost 50 years ago, and over 100 million women currently use them. Oral contraceptives can reduce the risk of ovarian cancer, but the eventual public-health effects of this reduction will depend on how long the protection lasts after use ceases. We aimed to assess these effects.

METHODS

Individual data for 23,257 women with ovarian cancer (cases) and 87,303 without ovarian cancer (controls) from 45 epidemiological studies in 21 countries were checked and analysed centrally. The relative risk of ovarian cancer in relation to oral contraceptive use was estimated, stratifying by study, age, parity, and hysterectomy.

FINDINGS

Overall 7308 (31%) cases and 32,717 (37%) controls had ever used oral contraceptives, for average durations among users of 4.4 and 5.0 years, respectively. The median year of cancer diagnosis was 1993, when cases were aged an average of 56 years. The longer that women had used oral contraceptives, the greater the reduction in ovarian cancer risk (p<0.0001). This reduction in risk persisted for more than 30 years after oral contraceptive use had ceased but became somewhat attenuated over time-the proportional risk reductions per 5 years of use were 29% (95% CI 23-34%) for use that had ceased less than 10 years previously, 19% (14-24%) for use that had ceased 10-19 years previously, and 15% (9-21%) for use that had ceased 20-29 years previously. Use during the 1960s, 1970s, and 1980s was associated with similar proportional risk reductions, although typical oestrogen doses in the 1960s were more than double those in the 1980s. The incidence of mucinous tumours (12% of the total) seemed little affected by oral contraceptives, but otherwise the proportional risk reduction did not vary much between different histological types. In high-income countries, 10 years use of oral contraceptives was estimated to reduce ovarian cancer incidence before age 75 from 1.2 to 0.8 per 100 users and mortality from 0.7 to 0.5 per 100; for every 5000 woman-years of use, about two ovarian cancers and one death from the disease before age 75 are prevented.

INTERPRETATION

Use of oral contraceptives confers long-term protection against ovarian cancer. These findings suggest that oral contraceptives have already prevented some 200,000 ovarian cancers and 100,000 deaths from the disease, and that over the next few decades the number of cancers prevented will rise to at least 30,000 per year.

Knowledge and use of emergency contraception among women in the Western Cape province of South Africa: a cross-sectional study

Background

Emergency contraception (EC) is widely available free of charge at public sector clinics in South Africa. At the same time, rates of teenage and unintended pregnancy in South Africa remain high, and there are few data on knowledge of EC in the general population in South Africa, as in other resource-limited settings.

Methods

We conducted a cross-sectional, interviewer-administered survey among 831 sexually active women at 26 randomly selected public sector clinics in the Western Cape province.

Results

Overall, 30% of the women had ever heard of EC when asked directly, after the method was described to them. Only 15% mentioned EC by name or description spontaneously. Knowledge of EC was independently associated with higher education, being married, and living in an urban setting. Four percent of women had ever used EC.

Discussion

These data suggest that knowledge of EC in this setting is more common among women of higher socioeconomic status living in urban areas. For EC to play a role in decreasing unintended pregnancy in South Africa, specific interventions are necessary to increase knowledge of the method, where to get it, and the appropriate time interval for its use before the need for EC arises. Future health promotion campaigns should target rural and low socioeconomic status communities.

Preferences between injectable contraceptive methods among South African women

OBJECTIVE

To examine South African women's preferences between depot medroxyprogesterone acetate (DMPA) and norethisterone enanthate (NET-EN), as well as the reasons for and correlates of these preferences.

STUDY DESIGN

A cross-sectional study among women attending 26 primary health care clinics across the Western Cape Province.

RESULTS

Of 893 women participating in the survey, 57% (n=511) and 45% (n=399) had ever used DMPA and NET-EN, respectively. Among women who knew of both injectables, 46% stated a preference for DMPA (n=365) and 37% stated a preference for NET-EN (n=297). Most women who preferred DMPA thought that it was more effective in preventing pregnancy, while women who preferred NET-EN stated that it was preferable for women who wanted children in the future. Preferences for NET-EN were independently associated with younger age, higher education and living in an urban area.

CONCLUSION

These findings suggest that there are significant misperceptions among women regarding the differences between DMPA and NET-EN, which may have important resource implications for contraceptive services. It is likely that these misperceptions arise from popular discourse and individual user experiences, as well as poor communication with and counseling of women on the part of providers. Interventions aimed at both users and providers are required to dispel the myths and misinformation regarding progestogen-only injectable methods.

Contraception: an international perspective

Although it is estimated that the population growth rate will decline to a replacement level by 2050, it is also now predicted that the total world population will reach 8.9 billion in that year -- far higher than the 2004 estimate of 6.4 billion. More than 26 billion new couples will need contraceptives in the next half century. Although a steady increase in contraceptive use has been observed in both developed and developing countries, the contraceptive needs of a high percentage of couples have not yet been met and the number of unplanned pregnancies continues to increase. The actual use of contraception differs from region to region. Although no new method has been registered for many years, several new products have been marketed during the last 5. Among these are new implants, medicated intrauterine systems, contraceptive vaginal rings, transdermal patches and several new combined oral contraceptive formulations. New contraceptive methods have been developed to meet the objectives of expanding contraceptive choices for both women and men and answering an unmet need for contraceptives with a long-term action that meet the expectations of consumers. Simplicity, reversibility and effectiveness are the desired features of a male contraceptive, but no new male contraceptive method is yet available. New areas of basic research include studies on genes, proteins and enzymes involved in the reproductive system. The new methods will be targeted to specific interactions within the reproductive system at the level of ovaries and testes, as well as between spermatozoa and ova. This futuristic approach still keeps in mind the need for better access to existing contraceptive methods, as well as the discovery of new contraceptives that are simple to use, safe, reversible and inexpensive. In the future, contraceptives may be combined with other medicinal agents to provide dual protection against both pregnancy and other preventable conditions, such as sexually transmitted infections.