New estimations of child marriage: Evidence from 98 low- and middle-income countries.

The Sustainable Development Goals include a target on eliminating child marriage, a human rights abuse. Yet, the indicator used in the SDG framework is a summary statistic and does not provide a full picture of the incidence of marriage at different ages. This paper aims to address this limitation by providing an alternative method of measuring child marriage. The paper reviews recent data on nuptiality and captures evidence of changes in the proportion married and in the age at marriage, in 98 low- and middle-income countries (LMICs). Using data collected from nationally representative Demographic and Health Surveys and Multiple Indicator Cluster Surveys, survival analysis is applied to estimate (a) age-specific marriage hazard rates among girls before age 18; and (b) the number of girls that were married before age 18 in 2020. Results show that the vast majority of girls remain unmarried until age 10. Child marriage rates increase gradually until age 14 and accelerate significantly thereafter at ages 15-17. By accounting for both single-year-age-specific child marriage hazard rates and the age structure of the population with a survival analysis approach, lower estimates in countries with a rapid decrease in child marriage and higher estimates in countries with constant or slightly rising child marriage rates relative to the direct approach are obtained.

Updated research gaps on ending child marriage and supporting married girls for 2020-2030.

Over the past 25 years, tremendous progress has been made in increasing the evidence on child marriage and putting it to good use to reduce the prevalence of child marriage and provide support to married girls. However, there is still much to be done to achieve the Sustainable Development Goal target 5.3 of ending child marriage by 2030, and to meet the needs of the 12 million girls who are still married before age 18 each year. To guide and stimulate future efforts, the UNDP-UNFPA-UNICEF-WHO-World Bank Special Programme of Research, Development and Research Training in Human Reproduction, the World Health Organization, the UNICEF-UNFPA Global Programme to End Child Marriage, and Girls Not Brides: The Global Partnership to End Child Marriage convened an expert group meeting in 2019 to: (1) review the progress made in building the evidence base on child marriage since the publication of research priorities in this area in 2015, (2) identify an updated set of research priorities for the next ten years, and (3) discuss how best to support research coordination, translation, and uptake. This article provides a summary of the progress made in this area since 2015 and lists an updated set of research gaps and their rationale in four key areas: (1) prevalence, trends, determinants, and correlates of child marriage; (2) consequences of child marriage; (3) intervention effectiveness studies to prevent child marriage and support married girls; and (4) implementation research studies to prevent child marriage and support married girls. It also highlights a number of calls-to-action around research coordination and knowledge translation to support the emerging and evolving needs of the field.

RéSUMé: Au cours des 25 dernières années, d'énormes progrès ont été réalisés pour mettre à jour les données concernant le mariage des enfants et les mettre à profit pour réduire la prévalence du mariage des enfants et apporter un soutien aux filles mariées. Cependant, il reste encore beaucoup à faire pour atteindre la cible 5.3 de l'Objectif de Développement Durable consistant à mettre fin au mariage des enfants d'ici 2030 et pour répondre aux besoins des 12 millions de filles qui sont encore mariées avant l'âge de 18 ans chaque année. Guider et stimuler les efforts futurs, tel est le Programme Spécial de Recherche de la Banque Mondiale PNUD-FNUAP-UNICEF-OMS, du Développement et la Formation à la Recherche en Reproduction Humaine, de l'Organisation Mondiale de la Santé, du Programme Mondial UNICEF-FNUAP pour mettre fin au mariage des enfants et «  Des filles pas des Mariées  ¼ : le Partenariat Mondial pour mettre fin au mariage des enfants a convoqué une réunion de groupe d'experts en 2019 pour : 1. passer en revue les progrès accomplis dans la constitution de la base de données factuelles sur le mariage des enfants depuis la publication des priorités de la recherche dans ce domaine en 2015, 2. identifier un ensemble actualisé de priorités de recherche pour les dix prochaines années, et 3. discuter de la meilleure façon de soutenir la coordination, la traduction et la compréhension de la recherche. Cet article résume les progrès réalisés dans ce domaine depuis 2015 et répertorie sous forme de mise à jour un ensemble de lacunes dans la recherche et leur justification dans quatre domaines clés: 1) prévalence, tendances, déterminants et corrélatifs du mariage des enfants; 2) conséquences du mariage des enfants; 3) études ayant trait à l'efficacité des interventions pour prévenir le mariage des enfants et soutenir les filles mariées; et 4) études de recherche sur la mise en œuvre pour prévenir le mariage des enfants et soutenir les filles mariées. Il met également en évidence un certain nombre d'appels à l'action autour de la coordination de la recherche et de l'application des connaissances pour répondre aux besoins émergents et à l'évolution de ce domaine.

RESUMEN: En los últimos 25 años se ha avanzado enormemente y existe ahora más evidencia sobre el matrimonio infantil, y sobre como se debe poner la evidencia en práctica para reducir la prevalencia del matrimonio infantil y proporcionar apoyo a las niñas casadas. Sin embargo, aún queda mucho por hacer para alcanzar la meta 5.3 de los Objetivos de Desarrollo Sostenible de poner fin al matrimonio infantil para 2030, y para satisfacer las necesidades de los 12 millones de niñas que cada año se casan antes de los 18 años. Para orientar y estimular los esfuerzos futuros, el Programa Especial de Investigación, Desarrollo y Formación de Investigadores en Reproducción Humana del PNUD-FNUAP-UNICEF-OMS-Banco Mundial, la Organización Mundial de la Salud, el Programa Mundial para la Eliminación del Matrimonio Infantil de UNICEF-FNUAP y Girls Not Brides: La Alianza Mundial para Acabar con el Matrimonio Infantil convocó una reunión de un grupo de expertos en 2019 para: 1. Revisar los progresos realizados en la construcción de la base de evidencias sobre el matrimonio infantil desde la publicación de las prioridades de investigación en este ámbito en 2015, 2. Identificar un conjunto actualizado de prioridades de investigación para los próximos diez años, y 3. Debatir la mejor manera de apoyar la coordinación, la traducción y la aceptación de la investigación.Este artículo ofrece un resumen de los progresos realizados en este ámbito desde 2015 y enumera un conjunto actualizado de lagunas de investigación y su justificación en cuatro áreas clave: 1) prevalencia, tendencias, determinantes y correlaciones del matrimonio infantil; 2) consecuencias del matrimonio infantil; 3) estudios de eficacia de las intervenciones para prevenir el matrimonio infantil y apoyar a las niñas casadas; y 4) estudios de implementación para prevenir el matrimonio infantil y apoyar a las niñas casadas. También destaca una serie de llamados a la acción en torno a la coordinación de la investigación y la traducción de conocimientos para apoyar las necesidades emergentes y en evolución del campo.

Does schooling protect sexual health? The association between three measures of education and STIs among adolescents in Malawi.

While multiple studies have documented shifting educational gradients in HIV prevalence, less attention has been given to the effect of school participation and academic skills on infection during adolescence. Using the Malawi Schooling and Adolescent Study, a longitudinal survey that followed 2,649 young people aged 14-17 at baseline from 2007 to 2013, we estimate the effect of three education variables: school enrolment, grade attainment, and academic skills-numeracy and Chichewa literacy-on herpes simplex virus type 2 (HSV-2) and HIV incidence using interval-censored survival analysis. We find that grade attainment is significantly associated with lower rates of both HSV-2 and HIV among girls, and is negatively associated with HSV-2 but not HIV among boys. School enrolment and academic skills are not significantly associated with sexually transmitted infections (STIs) for boys or girls in our final models. Efforts to encourage school progression in high-prevalence settings in sub-Saharan Africa could well reduce, or at least postpone, acquisition of STIs.

The State of Adolescent Sexual and Reproductive Health.

In the 25 years since the 1994 International Conference on Population and Development, significant progress has been made in adolescent sexual and reproductive health and rights (ASRHR). Trend analysis of key ASRHR indicators at global, national, and subnational levels indicates that adolescent girls today are more likely to marry later, delay their first sexual experience, and delay their first childbirth, compared with 25 years ago; they are also more likely to use contraceptives. Despite overall progress, however, unequal progress in many ASRHR outcomes is evident both within and between countries, and in some locations, the state of adolescents' lives has worsened. Population growth in countries with some of the worst shortfalls in ASRHR mean that declining rates, of child marriage, for example, coexist with higher absolute numbers of girls affected, compared with 25 years ago. Emerging trends that warrant closer attention include increasing rates of ovarian and breast cancer among adolescent girls and sharp increases in the proportion of adolescents who are overweight or obese, which has long-term health implications.

The Political, Research, Programmatic, and Social Responses to Adolescent Sexual and Reproductive Health and Rights in the 25 Years Since the International Conference on Population and Development.

Among the ground-breaking achievements of the International Conference on Population and Development (ICPD) was its call to place adolescent sexual and reproductive health (ASRH) on global health and development agendas. This article reviews progress made in low- and middle-income countries in the 25 years since the ICPD in six areas central to ASRH-adolescent pregnancy, HIV, child marriage, violence against women and girls, female genital mutilation, and menstrual hygiene and health. It also examines the ICPD's contribution to the progress made. The article presents epidemiologic levels and trends; political, research, programmatic and social responses; and factors that helped or hindered progress. To do so, it draws on research evidence and programmatic experience and the expertise and experiences of a wide number of individuals, including youth leaders, in numerous countries and organizations. Overall, looking across the six health topics over a 25-year trajectory, there has been great progress at the global and regional levels in putting adolescent health, and especially adolescent sexual and reproductive health and rights, higher on the agenda, raising investment in this area, building the epidemiologic and evidence-base, and setting norms to guide investment and action. At the national level, too, there has been progress in formulating laws and policies, developing strategies and programs and executing them, and engaging communities and societies in moving the agenda forward. Still, progress has been uneven across issues and geography. Furthermore, it has raced ahead sometimes and has stalled at others. The ICPD's Plan of Action contributed to the progress made in ASRH not just because of its bold call in 1994 but also because it provided a springboard for advocacy, investment, action, and research that remains important to this day.

A Package of Sexual and Reproductive Health and Rights Interventions-What Does It Mean for Adolescents?

This article analyzes the relevance of the comprehensive definition of sexual and reproductive health and rights (SRHR) to adolescents and identifies adolescent-specific implications for the implementation of an essential package of SRHR interventions. The delivery of a comprehensive approach to SRHR targeting adolescents is underpinned by five principles-equity, quality, accountability, multisectorality, and meaningful engagement. All SRHR interventions included in the package are relevant to adolescents, given the diversity of adolescents' SRHR needs and considering their specific attributes, circumstances, and experiences. Ensuring that this package is available, accessible, and acceptable to adolescents requires an approach that looks at adolescents as being biologically and socially distinct from other age groups and acknowledges that they face some specific barriers when accessing SRHR services. This article provides cross-cutting strategies for the implementation of a comprehensive approach to SRHR for adolescents and specific considerations in delivering each intervention in the package of essential SRHR interventions. To further implement the International Conference on Population and Development Programme of Action, a prerequisite for achieving the Sustainable Development Goals, SRHR interventions must be adolescent responsive, delivered through multiple platforms, leveraging multisectoral collaboration, and strengthening accountability and participation.

Building the foundations for sustainable development: a case for global investment in the capabilities of adolescents.

Investment in the capabilities of the world's 1·2 billion adolescents is vital to the UN's Sustainable Development Agenda. We examined investments in countries of low income, lower-middle income, and upper-middle income covering the majority of these adolescents globally to derive estimates of investment returns given existing knowledge. The costs and effects of the interventions were estimated by adapting existing models and by extending methods to create new modelling tools. Benefits were valued in terms of increased gross domestic product and averted social costs. The initial analysis showed high returns for the modelled interventions, with substantial variation between countries and with returns generally higher in low-income countries than in countries of lower-middle and upper-middle income. For interventions targeting physical, mental, and sexual health (including a human papilloma virus programme), an investment of US$4·6 per capita each year from 2015 to 2030 had an unweighted mean benefit to cost ratio (BCR) of more than 10·0, whereas, for interventions targeting road traffic injuries, a BCR of 5·9 (95% CI 5·8-6·0) was achieved on investment of $0·6 per capita each year. Interventions to reduce child marriage ($3·8 per capita each year) had a mean BCR of 5·7 (95% CI 5·3-6·1), with the effect high in low-income countries. Investment to increase the extent and quality of secondary schooling is vital but will be more expensive than other interventions-investment of $22·6 per capita each year from 2015 to 2030 generated a mean BCR of 11·8 (95% CI 11·6-12·0). Investments in health and education will not only transform the lives of adolescents in resource-poor settings, but will also generate high economic and social returns. These returns were robust to substantial variation in assumptions. Although the knowledge base on the impacts of interventions is limited in many areas, and a major research effort is needed to build a more complete investment framework, these analyses suggest that comprehensive investments in adolescent health and wellbeing should be given high priority in national and international policy.

Household wealth and child health in India.

Using data from the Indian National Family Health Surveys (1992-93, 1998-99, 2005-06), this study examined how the relationship between household wealth and child health evolved during a time of significant economic change in India. The main predictor was an innovative measure of household wealth that captures changes in wealth over time. Discrete-time logistic models (with community fixed effects) were used to examine mortality and malnutrition outcomes: infant, child, and under-5 mortality; stunting, wasting, and being underweight. Analysis was conducted at the national, urban/rural, and regional levels, separately for boys and girls. The results indicate that the relationship between household wealth and under-5 mortality weakened over time but this result was dominated by infant mortality. The relationship between wealth and child mortality stayed strong for girls. The relationship between household wealth and malnutrition became stronger over time for boys and particularly for girls, in urban and (especially) rural areas.

Herpes simplex virus type 2 cross-sectional seroprevalence and the estimated rate of neonatal infections among a cohort of rural Malawian female adolescents.

OBJECTIVE: To assess herpes simplex virus type 2 (HSV-2) seroprevalence among rural Malawian adolescent women and estimate the number of neonatal herpes infections among infants of these adolescents. METHODS: A longitudinal cohort study of adolescents (14-16 years at entry) residing in rural Malawi was initiated in 2007 with annual observation. HSV-2 testing was introduced in 2010. In this study, we (1) determined, using cross-sectional analysis, risk factors for positive serostatus, (2) adjusted for non-response bias with imputation methods and (3) estimated the incidence of neonatal herpes infection using mathematical models. RESULTS: A total of 1195 female adolescents (age 17-20 years) were interviewed in 2010, with an observed HSV-2 seroprevalence of 15.2% among the 955 women tested. From a multivariate analysis, risk factors for HSV-2 seropositivity include older age (p=0.037), moving from the baseline village (p=0.020) and report of sexual activity with increasing number of partners (p<0.021). Adjusting for non-response bias, the estimated HSV-2 seroprevalence among the total female cohort (composed of all women interviewed in 2007) was 18.0% (95% CI 16.0% to 20.2%). HSV-2 seropositivity was estimated to be 25.6% (95% CI 19.6% to 32.5%) for women who refused to provide a blood sample. The estimated number of neonatal herpes infections among the total female cohort was 71.8 (95% CI 57.3 to 86.3) per 100 000 live births. CONCLUSIONS: The risk of HSV-2 seroconversion is high during adolescence, when childbearing is beginning, among rural Malawian women. Research on interventions to reduce horizontal and vertical HSV-2 transmission during adolescence in resource-limited settings is needed.

Understanding wealth-based inequalities in child health in India: a decomposition approach.

India experienced tremendous economic growth since the mid-1980s but this growth was paralleled by sharp rises in economic inequality. Urban areas experienced greater economic growth as well as greater increases in economic inequality than rural areas. During the same period, child health improved on average but socioeconomic differentials in child health persisted. This paper attempts to explain wealth-based inequalities in child mortality and malnutrition using a regression-based decomposition approach. Data for the analysis come from the 1992/93, 1998/99, and 2005/06 Indian National Family Health Surveys. Inequalities in child health are measured using the concentration index. The concentration index for each outcome is then decomposed into the contributions of wealth-based inequality in the observed determinants of child health. Results indicate that mortality inequality declined in urban areas but remained unchanged or increased in rural areas. Malnutrition inequality increased dramatically both in urban and rural areas. The two largest individual/household-level sources of disparities in child health are (i) inequality in the distribution of wealth itself, and (ii) inequality in maternal education. The contributions of observed determinants (i) to neonatal mortality inequality remained unchanged, (ii) to child mortality inequality increased, and (ii) to malnutrition inequality increased. It is possible that the increases in child health inequality reflect urban biases in economic growth, and the mixed performance of public programs that could have otherwise offset the impacts of unequal growth.

The consequences of unintended births for maternal and child health in India.

Data from the Indian National Family Health Survey, 2005-06 were used to explore how pregnancy intention at the time of conception influences a variety of maternal and child health and health care outcomes. Results indicate that mistimed children are more likely than wanted children to be delivered without a skilled attendant present (OR = 1.3), to not receive all recommended vaccinations (OR = 1.4), and to die during the neonatal and postneonatal periods (OR = 1.8 and 2.6, respectively). Unwanted children are more likely than wanted children to not receive all recommended vaccinations (OR = 2.2), to be stunted (OR = 1.3), and to die during the neonatal, postneonatal, and early childhood periods (OR = 2.2, 3.6, and 5.9, respectively). Given the high levels of unintended fertility in India (21 per cent of all births), these are striking findings that underscore the importance of investments in family planning.