MEASURE DHS assists countries worldwide in the collection and use of data to monitor and evaluate population, health, and nutrition programs. Funded by the U.S. Agency for International Development (USAID), MEASURE DHS is implemented by ORC Macro in Calverton, Maryland. The main objectives of the MEASURE DHS project are: 1) to provide decisionmakers in survey countries with information useful for informed policy choices, 2) to expand the international population and health database, 3) to advance survey methodology, and 4) to develop in participating countries the skills and resources necessary to conduct high-quality demographic and health surveys. Information about the MEASURE DHS project or the status of MEASURE DHS surveys is available on the Internet at http://www.measuredhs.com or by contacting: ORC Macro 11785 Beltsville Drive, Suite 300 Calverton, MD 20705 USA Telephone: 301-572-0200 Fax: 301-572-0999 E-mail: [email protected] DHS Analytical Studies No. 8 Recent Trends in Abortion and Contraception in 12 Countries Charles F. Westoff Office of Population Research Princeton University ORC Macro Calverton, Maryland, USA February 2005 This publication was made possible through support provided by the U.S. Agency for Interna- tional Development under the terms of Contract No. HRN-C-00-97-00019-00. The opinions expressed herein are those of the authors and do not necessarily reflect the views of the U.S. Agency for International Development Suggested citation: Westoff, Charles F. 2005. Recent Trends in Abortion and Contraception in 12 Countries. DHS Analytical Studies No. 8. Calverton, Maryland: ORC Macro. Contents Tables and Figures v Preface vii Acknowledgements ix Executive Summary xi 1 Background 1 2 Levels and Trends of Contraceptive Prevalence and Abortion Rates 3 3 Trends in Fertility Rates and Number of Children Desired 9 4 Recent Country Trends in Contraceptive Prevalence and Abortion 11 5 A Model of Abortion 23 6 Components of Abortion 27 7 Potential Reduction in Abortion Rates 29 7.1 Unmet Need Shifts to Use of Modern Methods 29 7.2 Use of Traditional Methods Shifts to Use of Modern Methods 30 7.3 Both Unmet Need and Use of Traditional Methods Shift to Use of Modern Methods 30 8 Effect of Contraceptive Discontinuation on Abortion 33 9 Receptivity to Abortion 35 10 Covariates of Abortion and Contraception 39 10.1 Abortion Experience 39 10.2 Abortion Attitudes 41 10.3 Modern Contraceptive Practice 42 11 Remaining High Risk of Abortion 43 12 Conclusions 45 References 47 Contents iii Tables and Figures Table 2.1 Trends in abortion rates in 9 countries by age at time of abortion and number of years preceding survey that abortion took place 7 Figure 2.1 Total abortion rate per woman 3 Figure 2.2 Percentage of all women age 15-44 currently using contraception 4 Figure 2.3 Total abortion rate and the prevalence of modern contraceptive methods in 18 countries 5 Figure 2.4 Total abortion rate and the prevalence of traditional contraceptive methods in 18 countries 5 Figure 2.5 Recent trends in the use of modern contraceptive methods 6 Figure 2.6 Recent trends in abortion rates 8 Figure 3.1 Total fertility rates 1950-2000 9 Figure 3.2 Mean ideal number of children, by current age of women 10 Figure 4.1 Recent trends (relative) in use of modern contraceptive methods and prevalence of abortion among all women 11 Figure 4.2 Trends in contraceptive failure rates in five countries, 1992-1999 18 Table 5.1 Model for parameters for abortion risk among women age 15-44 25 Figure 5.1 A model of abortion (using Armenia 2000 data) 24 Figure 6.1 Components of abortion as a percentage of all abortions 27 Figure 7.1 Percent reduction in abortion rates if all unmet need shifted to modern methods 29 Figure 7.2 Percent reduction in abortion rates if use of traditional methods shifted to modern methods 30 Figure 7.3 Percent reduction in abortion rates if all unmet need and all use of traditional methods shifted to modern methods 31 Table 8.1 Percent distribution of all pregnancies that ended in the three years preceding the survey by use of contraception before preg- nancy, and the percentage of pregnancies in each category that ended in abortion 34 Tables and Figures v Figure 9.1 Percentage of women who never heard of specific modern methods 36 Figure 9.2 Percentage of women who think that a woman with an unwanted pregnancy should have an abortion, and percentage who say they would have an abortion if they become pregnant unintentionally 37 Table 10.1 Odds ratios of ever having had an abortion, women age 15-44 who ever had sex 40 Table 10.2 Odds ratios of women preferring an abortion if they become pregnant unintentionally 41 Table 10.3 Odds ratios of ever having used a modern method of contracep- tion, women age 15-44 who have ever had sex 42 Table 11.3 Estimates of the percentage of currently married women who are at high risk for another abortion 43 vi Tables and Figures Preface One of the most significant contributions of the MEASURE DHS program is the creation of an internationally comparable body of data on the demographic and health characteristics of populations in developing countries. The DHS Analytical Studies series and the DHS Comparative Reports series examine these data, focusing on specific topics. The principal objectives of both series are: to provide information for policy formulation at the international level, and to examine individual country results in an international context. Whereas Comparative Reports are primarily de- scriptive, Analytical Studies take a more analytical approach. The Analytical Studies series comprises in-depth, focused studies on a variety of substantive topics. The studies are based on a variable number of data sets, depending on the topic under study. A range of methodologies is used, including multivariate statistical techniques. The topics covered are selected by MEASURE DHS staff in conjunction with the MEASURE DHS Scientific Advisory Committee and USAID. It is anticipated that the Analytical Studies will enhance the understanding of sig- nificant issues in the fields of international population and health for analysts and policymakers. Martin Vaessen Project Director Preface vii