Assessing Trends in the Desire to Avoid Pregnancy: A Cautionary Note.

The desire to avoid pregnancy-to delay the next birth or have no further births-is a fundamental sexual and reproductive health indicator. We show that two readily available measures-prospective fertility preferences and the demand for contraception [Demand] construct-provide substantially different portraits of historical trends. They also yield correspondingly different assessments of the sources of contraceptive change. We argue, with supporting empirical evidence, that Demand enormously overstates the historical trend in the desire to avoid pregnancy because Demand as currently constructed is in part a function of contraceptive prevalence. This makes for "reverse causality" in decompositions of contraceptive change, producing an upward distortion on the order of 25 percentage points in the amount of contraceptive change attributed to a change in fertility desires. Decomposition of contraception change free of the distortion reveals that contraceptive change has been due almost entirely to more complete implementation of fertility preferences. This is explained in part by the surprisingly slight historical change in preferences, a fact we document and then show is a consequence of a historical shift in parity composition toward lower parities.

Multiple Perspectives on Recent Trends in Unwanted Fertility in Low- and Middle-Income Countries.

The last four decades have witnessed large declines in fertility globally. This study uses data from 78 low- and middle-income countries to examine concurrent trends in unwanted fertility. Three measures of unwanted fertility are contrasted: the conventional unwanted total fertility rate, a proposed conditional unwanted fertility rate, and the percentage of births unwanted. Incidence of unwanted births and prevalence of exposure to unwanted births are both derived from answers to questions on prospective fertility preference, recognized as the most valid and reliable survey measure of preferences. Country-level trends are modeled both historically and with the decline in total fertility, with a focus on regional differentials. Results show that unwanted fertility rates-especially the conditional unwanted fertility rate-have declined substantially in recent decades. By contrast, the percentage of births unwanted has declined less, remaining stable or even increasing: from a birth cohort perspective, declines in unwanted fertility have been far more modest than the increased parental success in avoiding unwanted births. The regional patterns suggest that sub-Saharan Africa has several similarities with other major regions but also some peculiar features, including a recent stall in the decline of unwanted fertility that persists after controlling for the stage of fertility transition.

Unmet need and fertility decline: a comparative perspective on prospects in sub-Saharan Africa.

This study assesses how changes in unmet need for family planning have contributed to contemporary fertility declines, and the implications of this historical record for further fertility decline, especially in sub-Saharan Africa. We examine joint trends at the national level in fertility, unintended fertility, and unmet need. We bring unintended fertility into the analysis because the underlying rationale for reducing unmet need is to avert unintended pregnancies and births. The association over time between unmet need and fertility is investigated using survey data from 45 countries in Africa, Asia, and Latin America and the Caribbean from the mid-1970s to the present. The empirical analysis finds that reduction in unmet need, especially unmet need for limiting, is strongly associated with fertility decline in Latin America and the Caribbean and in Asia and North Africa. Fertility decline in sub-Saharan Africa is weakly associated with trends in unmet need (and satisfaction of demand). We propose that the stark regional difference is due to measurement problems and to the fundamentally different character of fertility decline in sub-Saharan Africa, itself reflective of basic differences in pretransition reproductive regimes.

The path to replacement fertility in Egypt: acceptance, preference, and achievement.

This study draws upon data from the 2004 Slow Fertility Transition survey, a follow-up to the 2003 Egypt Interim Demographic and Health Survey, to investigate obstacles to achieving replacement fertility. To account for the likelihood of embracing the two-child ideal, the analysis adopts a framework with the acronym APA: Acceptance of the two-child ideal, Preference for that ideal, and Achievement of that preference. The framework posits a hierarchy among the three and hypothesizes that each depends on a set of factors, including gender stratification, economic expectations, perception of the costs and benefits of having children, and the costs of fertility regulation. The results indicate that son preference and the perceived low cost of childrearing are major obstacles to the acceptance of the two-child family. Son preference, other discriminatory gender attitudes, optimistic economic expectations, and fear of contraceptive side effects are associated with a low preference for and ambivalence about having only two children. Given a decisive preference, lower socioeconomic status and strong son preference are the major obstacles to the achievement of the two-child ideal.

The estimation of unwanted fertility.

The estimation of unwanted fertility is a major objective of demographic surveys, including DHS surveys conducted in Asia, Africa, and Latin America. Levels and trends in unwanted fertility are important input to the formulation of population policy and the evaluation of family planning programs. Yet existing methods for estimating unwanted fertility are known to be defective, among other reasons because they rely on subjective data whose validity and reliability are questionable. In this article, we propose a new estimator of unwanted fertility-the "aggregate prospective estimator"--so named because it depends on the stated preference for another child at the time of the survey, the fertility-desires item consistently shown to possess the highest validity and reliability. Under reasonable assumptions, the aggregate prospective estimator produces less biased estimates of unwanted fertility than the most widely used existing methods. The new estimator has the limitation of generating only aggregate-level estimates, but such estimates are the primary data for policy formulation and program evaluation. The new estimator is presented in this article, along with an evaluation of its underlying assumptions and its sensitivity to several sources of error. In an illustrative application to recent DHS data from six countries, the new estimator yields substantially higher estimates of unwanted fertility than existing methods in all six countries.

Unmet need and unintended fertility: longitudinal evidence from upper Egypt.

CONTEXT: Although unmet need for family planning is a standard measure for evaluating programs' effectiveness in meeting the reproductive needs of individuals, its validity and accuracy in identifying women most at risk of unintended pregnancy have been questioned. METHODS: Women who participated in the 1995 Egypt Demographic and Health Survey in two governorates in Upper Egypt (Assuit and Souhag) were followed for two years (N=2,444); in-depth data on their fertility preferences, contraceptive use and births were gathered in 1996 and 1997. Transitions among contraceptive need categories from 1995 to 1997 are examined, and rates of unintended (mistimed and unwanted) births are calculated according to contraceptive need status at baseline. RESULTS: In the aggregate, unmet need increased by six percentage points, from 28% to 34%. This change was the net outcome of 14% moving out of unmet need and 20% moving into unmet need (i.e., substantial satisfaction of unmet need was offset by increased demand for contraception). The rate of unintended fertility was far higher among women with unmet need at baseline than among contraceptive users in 1995. Women with unmet need made up about one-quarter of the baseline sample, but they contributed almost one-half of mistimed and unwanted births during the two years. The majority of unintended births were to women who had never practiced contraception, whereas fewer than one-fifth were to women with recent contraceptive experience (including contraceptive failure). CONCLUSIONS: : Unmet need for family planning remains a useful tool for identifying and targeting women at high risk of unintended pregnancy.