Adolescent Fertility Research Articles

Mortality risk predicts global, local, and individual patterns of human reproduction

BackgroundHuman reproductive dynamics in the post-industrial world are typically explained by economic, technological, and social factors including the prevalence of contraception and increasing numbers of women in higher education and the workforce. These factors have been targeted by multiple world governments as part of family policies, yet those policies have had limited success. The current work adopts a life history perspective from evolutionary biology: like most species, human populations may respond to safer environments marked by lower morbidity and mortality by slowing their reproduction and reducing their number of offspring. We test this association on three levels of analysis using global, local, and individual data from publicly available databases.ResultsData from over 200 world nations, 3,000 U.S. counties and 2,800 individuals confirm an association between human reproductive outcomes and local mortality risk. Lower local mortality risk predicts “slower” reproduction in humans (lower adolescent fertility, lower total fertility rates, later age of childbearing) on all levels of analyses, even while controlling for socioeconomic variables (female employment, education, contraception).ConclusionsThe association between extrinsic mortality risk and reproductive outcomes, suggested by life history theory and previously supported by both animal and human data, is now supported by novel evidence in humans. Social and health policies governing human reproduction, whether they seek to boost or constrain fertility, may benefit from incorporating a focus on mortality risk.

Male Gamete Cryopreservation for Adolescent Fertility Preservation: Our Experience to Date

Male Gamete Cryopreservation for Adolescent Fertility Preservation: Our Experience to Date

The impact of sociodemographic, health status and resources, macroeconomic, and environmental factors on infant mortality rates in Qatar, Kingdom of Saudi Arabia, and the United Arab Emirates.

This study aims to study the impact of sociodemographic (SD), health status and resources (HSR), macroeconomic (ME), and Environmental (EV) factors on the infant mortality rate (IMR) in Qatar, Kingdom of Saudi Arabia (KSA), and the United Arab Emirates (UAE) and from 1990 to 2022. A retrospective time-series study employing yearly data was conducted. A generalized least squares model was utilized to construct an exploratory model of IMR determinants for each country. In SD, the risk of IMR may be increased with a higher crude birth rate, adolescent fertility rate, and married women percentage. In HSR, immunization coverage shows a significant effect in preventing neonatal diseases and reducing IMR. In ME, the effect of parents' employment seems contradicted among the three countries. In EV, greenhouse emissions have also had contradictory effects among the three countries, suggesting a complex relationship with IMR. Some were consistent with global findings, whereas others contradicted the prevailing narrative. This study highlights the need for tailored public health interventions addressing socio-demographic, healthcare, and environmental contexts to effectively reduce IMR and enhance infant health outcomes.

The oocyte microenvironment is altered in adolescents compared to oocyte donors.

Do the molecular signatures of cumulus cells (CCs) and follicular fluid (FF) of adolescents undergoing fertility preservation differ from that of oocyte donors? The microenvironment immediately surrounding the oocyte, including the CCs and FF, is altered in adolescents undergoing fertility preservation compared to oocyte donors. Adolescents experience a period of subfecundity following menarche. Recent evidence suggests that this may be at least partially due to increased oocyte aneuploidy. Reproductive juvenescence in mammals is associated with suboptimal oocyte quality. This was a prospective cohort study. Adolescents (10-19 years old, n = 23) and oocyte donors (22-30 years old, n = 31) undergoing ovarian stimulation and oocyte retrieval at a single center between 1 November 2020 and 1 May 2023 were enrolled in this study. Patient demographics, ovarian stimulation, and oocyte retrieval outcomes were collected for all participants. The transcriptome of CCs associated with mature oocytes was compared between adolescents (10-19 years old, n = 19) and oocyte donors (22-30 years old, n = 19) using bulk RNA-sequencing. FF cytokine profiles (10-19 years old, n = 18 vs 25-30 years old, n = 16) were compared using cytokine arrays. RNA-seq analysis revealed 581 differentially expressed genes in CCs of adolescents relative to oocyte donors, with 361 genes downregulated and 220 upregulated. Genes enriched in pathways involved in cell cycle and cell division (e.g. GO: 1903047, P = 3.5 × 10-43; GO: 0051983, P = 4.1 × 10-30; GO: 0000281, P = 7.7 × 10-15; GO: 0044839, P = 5.3 × 10-13) were significantly downregulated, while genes enriched in several pathways involved in cellular and vesicle organization (e.g. GO: 0010256, P = 1.2 × 10-8; GO: 0051129, P = 6.8 × 10-7; GO: 0016050, P = 7.4 × 10-7; GO: 0051640, P = 8.1 × 10-7) were upregulated in CCs of adolescents compared to oocyte donors. The levels of nine cytokines were significantly increased in FF of adolescents compared to oocyte donors: IL-1 alpha (2-fold), IL-1 beta (1.7-fold), I-309 (2-fold), IL-15 (1.6-fold), TARC (1.9-fold), TPO (2.1-fold), IGFBP-4 (2-fold), IL-12-p40 (1.7-fold), and ENA-78 (1.4-fold). Interestingly, seven of these cytokines have known pro-inflammatory roles. Importantly, neither the CC transcriptomes nor FF cytokine profiles were different in adolescents with or without cancer. Original high-throughput sequencing data have been deposited in Gene Expression Omnibus (GEO) database with the accession number GSE265995. This study aims to gain insights into the associated gamete quality by studying the immediate oocyte microenvironment. The direct study of oocytes is more challenging due to sample scarcity, as they are cryopreserved for future use, but would provide a more accurate assessment of oocyte reproductive potential. Our findings have implications for the adolescent fertility preservation cycles. Understanding the expected quality of cryopreserved eggs in this age group will lead to better counseling of these patients about their reproductive potential and may help to determine the number of eggs that is recommended to be banked to achieve a reasonable chance of future live birth(s). This project was supported by Friends of Prentice organization SP0061324 (M.M.L. and E.B.), Gesualdo Family Foundation (Research Scholar: M.M.L.), and NIH/NICHD K12 HD050121 (E.B.). The authors have declared that no conflict of interest exists.

Descriptive Overview of Adolescent Health Indicators in Humanitarian Settings: A Cross-Country Analysis

Purpose: An adolescent health information system is a relevantly new concept, especially in humanitarian settings. This article aims to map the available adolescent health indicators collected in selected humanitarian settings, identify the available data sources, and determine the alignment between these indicators and the draft list of priority indicators for adolescent health measurement recommended by the Global Action for the Measurement of Adolescent Health Advisory Group. Methods: We selected five countries experiencing humanitarian crises- Myanmar, Nigeria, Palestine, Ukraine, and Yemen. We identified the adolescent health indicators collected in each country using document analysis and a purposive sampling approach. We reviewed the primary population-based surveys used to gather adolescent health data and noted the most recent year each survey was conducted. The identified indicators were then categorized by measurement domains and specific areas of adolescent health.Results: The Multiple Indicator Cluster Survey and Demographic Health Survey were conducted in all five countries selected, but three out of five countries have not administered either within the last five years. Yemen and Palestine only included married women in their sample sizes, and no one younger than 15 was interviewed. Indicators most commonly assess reproductive health, tobacco use, and adolescent fertility. Limited data was found on younger adolescents, males, water, sanitation, hygiene, disability, and nutrition indicators. Discussion: Adolescent health information in humanitarian crises requires more frequent surveys, including all adolescent age groups, and unique data collection methodologies. The current surveys used to measure adolescent health indicators have limited ability to be inclusive to all adolescents. It is important to establish a list of priority indicators deemed essential in humanitarian settings and relevant ways to collect them.

The Prevalence Of Child Marriage: Comparitive Study Of Indonesia And Other South Asian States

Child marriage is a serious issue that has yet to be addressed by Indonesia. This practice severely affects the rights of the child and also Indonesian society as a whole. From a human rights perspective, child marriage is a form of gender-based violence. The causes of early marriage in Indonesia include pregnancy out of wedlock, which is also supported by westernized social life as well as the influence of the media, low education, economic factors and patriarchal culture. Meanwhile, other South Asian States such as India are influenced by economic violence against Muslim women perpetrated by their husbands. This practice in India has a detrimental impact on Muslim women's access to health services, educational attainment, social mobility, and employment opportunities. Furthermore, Bangladesh is affected by family poverty, while Pakistan is affected by financial shocks and school dropout rates. Although multiple factors causally affect the prevalence of child marriage, Indonesia and other South Asian States have shown that protective laws may help to lower the rates of child marriages and adolescent fertility. This article analyzes Indonesia’s legal framework in efforts to protect child marriages and compares it with other South Asian States. The main issue of this paper is that early marriage violates the children’s rights and both the Indonesian government and the international community should be obligated to combat early child marriage. The methodology employed by this article is a qualitative method of comparative legal case study, where secondary data such as books, articles, reports, online web sites, and court cases are analyzed. This article concludes that existing evidence shows that Indonesia and other South Asian states still lack in enforcement and monitoring delays to ensure the rights of the child and protect women. Alternative legal protection should be applied in order to ensure that women and children can gain access to higher education and hold their life in their own hands

The Global Adolescent Fertility Decline is Counteracted by Increasing Teen Births in Sub-Saharan Africa.

There is a lack of understanding of the persistence of elevated teen fertility rates in certain regions and countries, in contrast to the significant decline observed in other regions globally. This report considers fertility trends among 15- to 19-year olds in the period 1950-2020 and explores potential driving factors behind the significant shifts that occurred over this period. The countries where teen fertility remains high are those with fast-growing populations, primarily located in sub-Saharan Africa. Countries with higher teen fertility are typically characterized by limited use of modern contraception, lower education levels, and early marriage. Sub-Saharan Africa has emerged as the world region with the most teen births, increasing its proportion of global teen births from 12 percent in 1950 to 47 percent in 2020, a time during which this region's share of the global adolescent (15-19) population grew from 7.5 percent to 19 percent. By 2035, 67 percent of all teen births globally are projected to occur in this region. Consequently, the future number of births to teenage mothers will to a large extent depend on the development in sub-Saharan Africa over the coming decades.

Exploring adolescent fertility inequality in Southern Africa

Exploring adolescent fertility inequality in Southern Africa

Early school leaving in Spain: a longitudinal analysis by gender.

Spain is one of the eight EU-27 countries that failed to reduce early school leaving (ESL) below 10% in 2020, and now faces the challenge of achieving a rate below 9% by 2030. The determinants of this phenomenon are usually studied using cross-sectional data at the micro level and without differentiation by gender. In this study, we analyse it for the first time for Spain using panel data (between 2002 and 2020), taking into account the high regional inequalities at the macroeconomic level and the masculinisation of the phenomenon. The results show a positive relationship between ESL and socio-economic variables such as the adolescent fertility rate, immigration, unemployment or the weight of the industrial and construction sectors in the regional economy, with significant gender differences that invite us to discuss educational policies. Surprisingly, youth unemployment has only small but significant impact on female ESL.

Proportion and Causes of Adolescent Fertility in South Sulawesi Province: A Population-Based Research

Proportion and Causes of Adolescent Fertility in South Sulawesi Province: A Population-Based Research

Socioeconomic and residence-based inequalities in adolescent fertility in 39 African countries

IntroductionDespite the advancement in sexual and reproductive healthcare services and several public health measures aimed at controlling fertility rates, countries in sub-Saharan Africa (SSA) still experience higher adolescent fertility rates than other low-and middle-income countries. This study examined the disparities in adolescent fertility in 39 countries in SSA, focusing on socioeconomic and residence-based dimensions.MethodsThis study involved a secondary analysis of data obtained from 39 recent Demographic and Health Surveys conducted in SSA. The measures of difference (D), ratio (R), population attributable fraction (PAF), and population attributable risk (PAR) were estimated using the Health Equity Assessment Tool (HEAT) software version 3.1 developed by the World Health Organization. The measures: D, R, PAF, and PAR were used to examine the inequalities in adolescent fertility across the socioeconomic and residence-based dimensions.ResultsOut of the 39 countries included in the study, Guinea (D=27.70), Niger (D=27.50), Nigeria (D=23.90), and Côte d’Ivoire (D=23.60) exhibited the most significant residence-based inequalities in the rate of adolescent fertility, with the higher rate observed among adolescents in rural areas. Rwanda was the sole country that showed a slight inclination towards rural inequality in terms of the rate of adolescent fertility, with a value of D = -0.80. The burden of adolescent fertility was disproportionately higher among young women with low economic status across all the countries, exacerbating wealth-based inequities. The countries with the largest absolute discrepancies were Nigeria (D=44.70), Madagascar (D=41.10), Guinea (D=41.00), and Cameroon (D=40.20). We found significant disparities in educational attainment contributing to unequal inequalities in adolescent fertility, particularly among young women who lack access to formal education. Countries such as Madagascar (D=59.50), Chad (D=55.30), Cameroon (D=54.60), and Zimbabwe (D=50.30) had the most significant absolute disparities.ConclusionThis study revealed that young women residing in rural areas, those in households with low economic status and those with limited educational opportunities experience a disproportionately high burden of adolescent fertility across the 39 countries in SSA. The current findings offer valuable information to governmental entities at all levels regarding the need to ensure the provision of equitable, accessible, and dependable sexual and reproductive health services to the populace, particularly for young women. Therefore, the various stakeholders need to enhance the effectiveness of health policies and legislation pertaining to adolescent women living in rural areas, those from economically disadvantaged households, and those with limited or no access to formal education. Such interventions could potentially reduce adolescent fertility rates and mitigate the adverse maternal and child outcomes associated with high adolescent fertility in SSA.

Concurrent decline in teenage fertility rate and binge drinking? An observational study across 45 nations.

Alcohol consumption is associated with unintended pregnancies among teenagers. Its role as a broader determinant of teenage fertility rates remains unclear. We investigate whether adolescent binge drinking affects the number of teenage births. Binge drinking data from 137,898 females aged 15-16 were collected in the HBSC study (2002-2018, 43 countries/regions) and 267,359 in the ESPAD study (1995-2019, 41 countries/regions). Age-specific fertility rates were from the Human Fertility Database and the World Health Organization. We examined changes over time in countries' average levels of binge drinking among female pupils aged 15-16 and population-level fertility rates for the same cohorts when aged 16-19 years. Controlling for differences between countries and survey waves, we found an association between binge drinking and fertility rate, B = 0.019, 95% confidence interval [0.004, 0.034]. When accounting for the countries' time trends, the association was substantially reduced, B = 0.006, 95% confidence interval [-0.0062, 0.0174]. The relationship was not moderated by abortion rates and controlling for contraceptive use had no impact on the findings. The association between adolescent binge drinking and fertility rates diminishes when accounting for country-specific time trends. Given the lack of clear mechanisms linking binge drinking to trends in fertility rates rather than shorter-term changes, the association likely reflects broader secular trends. Binge drinking may be involved in teen pregnancy and childbirth in individual cases but it does not explain recent developments in teenage fertility rates.

Correlation Analysis of the Terrorist Attacks and Social Attributes in The Gulf States

Terrorist attacks are a significant threat to global security as they can cause a large number of deaths, economic losses, and trigger public panic. This paper focuses on the Gulf states as the survey region. This study comprehensively investigates the correlation between national-scale terrorist attacks and various potential factors in the social, political, economic, and military fields, based on the Spearman rank coefficient and gray correlation analysis. The potential factors are divided into two categories: those with a positive correlation and those with a negative correlation to terrorist attacks. The study shows a strong correlation between the adolescent fertility rate (births per 1,000 women aged 15-19) and the occurrence of terrorist attacks. This correlation has not been previously noted in relevant studies, indicating a need for greater attention to be paid to the impact of terrorist attacks on the human rights of children and adolescents.

Fertility Preservation in Children and Adolescents: Where We Are and Where We Are Going.

This review will describe current pediatric and adolescent fertility preservation methodologies and the ethical concerns surrounding these procedures, as well as highlight recent research that may pave the way for the development of new fertility preservation options. Research is ongoing to allow prepubertal patients, particularly those with testes, to be able to have biologic children in the future. Studies on sperm in vitro maturation highlight the importance of supporting the spermatogonial stem cell niche for the development of mature sperm. The live birth of a rhesus macaque from in vitro fertilization using prepubertal testicular tissue and in vivo matured sperm gives hope to future human births. For patients with ovaries, prior work has led to successful fertility but further research is underway to refine these techniques and optimize outcomes. Organoid scaffolds have shown promise when being used for in vitro oocyte maturation. For children and adolescents undergoing gonadotoxic treatment, such as chemotherapy, or hormonal treatment, such as gender-affirming hormone therapy, future fertility potential may be negatively impacted. It is recommended that fertility preservation (FP) be offered to these patients and families prior to undergoing treatment. Fertility preservation for postpubertal patients mimics that in adults. For prepubertal children, however, the options are limited and in some cases still experimental. It is essential that this work continues so that we may offer children and adolescents the right to an open future and preserve their fertility potential.

Multidimensional Analysis of Adolescent Fertility in Latin America: Trends and Determinants

Adolescent pregnancy in Latin America constitutes a complex issue with significant consequences. High pregnancy rates among individuals under 20 years old impact education, personal development, and future opportunities. It is imperative to pay closer attention to sexual education, access to contraceptive methods, and reproductive health services to prevent unintended pregnancies and ensure the well-being of both adolescents and their children. The study aimed to elucidate the determinants influencing the adolescent fertility rate, thus providing an academic contribution for the formulation of public policies in Latin America. The period covered was 1990-2019, and the analyzed data were sourced from the World Population Prospects 2019 report. The main findings indicate that the adolescent pregnancy rate is alarming, attributed to the absence of effective public policies for control and prevention in response to this phenomenon. Received: 10 February 2024 / Accepted: 27 April 2024 / Published: 5 May 2024

A Structural Equation Modeling Analysis of Attitudes and Behaviors on Early Fertility Among Young Women in Selected Regions in Nicaragua

Nicaragua has one of the highest adolescent fertility rates in Latin America and in the Caribbean. However, studies on adolescent pregnancies are limited. This study investigates the mechanism of early fertility among women aged 15 to 24 in northern central and eastern regions (NC-E) and the Pacific region (PAC), using data from the Nicaraguan Demographic and Health Survey 2011/12 ( N = 2,600). Structural equation modeling analysis was conducted in NC-E and PAC to examine the associations between exogenous variables (ethnicity and residence), mediators (education, sexuality education, knowledge and attitudes on pregnancy prevention, and sexual behaviors), and outcome (early fertility). The results showed educational attainment and sexual behaviors were crucial mediators of early fertility in NC-E and PAC, whereas sexuality education was only in NC-E. Residence was an exogenous variable in both groups, whereas ethnicity was not. Although educational attainment and sexuality education would improve knowledge, they did not contribute to reducing risky sexual behaviors. Further discussions on ethnic differences and variables measuring the actual decision-making related to risky sexual behaviors are suggested.

Socio-economic disparities and predictors of fertility among adolescents aged 15 to 19 in Zambia: Evidence from the Zambia Demographic and Health Survey (2018).

Globally, 12 million girls aged 15-19 give birth each year, and Africa hosts 19% of youth aged 15-24. In Zambia, 29% of adolescents experience childbirth, with variations by age. Projections suggest a continued rise in these trends by 2030. Zambia came up with Adolescent Health Strategic Plan 2011-2015 among the specific policies being advocated for was Adolescent-Friendly Health Services (ADFHS) in order to mitigate among others adolescent fertility. The study aims to investigate socio-economic disparities and predictors of fertility in Zambian adolescents aged 15 to 19. The study used a cross-sectional study design utilized the 2018 Zambia Demographic Health Survey (ZDHS). The variable of interest in this study is "total number of children ever born" among adolescents aged 15 to 19 years. The explanatory variables that were used in the study were demographic, socio-economic, behavioral and community level factors. The Rao-Scott Chi-square test was used to test for association between categorical variables. Determinants of adolescent fertility were identified through a multilevel ordinal logistic regression conducted at a significance level of 5%. Analysis in the study was carried out using Stata version 14.2. A total of 3,000 adolescents were involved in the study, revealing that 75.88% had not given birth, 21.14% had one child, and 2.98% had at least two children. The findings revealed that education played a protective role, with adjusted odds ratios (AOR) of 0.47 (95% CI, 0.23-0.97), 0.21 (95% CI, 0.10-0.47), and 0.03 (95% CI, 0.00-0.54) for primary, secondary, and tertiary education, respectively. On the other hand, certain factors were associated with an elevated risk of fertility. These included the age of adolescents, educational attainment, marital status, wealth index, contraceptive use, exposure to family planning (FP) messages, being educated about FP at health facilities, and age at first sexual encounter. Among contextual factors, only community age at first birth was identified as a predictor of fertility, AOR, 1.59 (95% CI, 1.01-2.52). The study highlights sociodemographic disparities in adolescent fertility, emphasizing the need for targeted sexual reproductive health policies. Education protects against having more than one child, while marital status significantly influences fertility, particularly for married adolescents. The research provides valuable insights into the complex factors shaping adolescent fertility in Zambia, offering guidance for interventions and policies to support this vulnerable demographic.

Health equity in Somalia? An evaluation of the progress made from 2006 to 2019 in reducing inequities in maternal and newborn health

BackgroundEvery human being has the right to affordable, high-quality health services. However, mothers and children in wealthier households worldwide have better access to healthcare and lower mortality rates than those in lower-income ones. Despite Somalia’s fragile health system and the under-5 mortality rate being among the highest worldwide, it has made progress in increasing reproductive, maternal, and child health care coverage. However, evidence suggests that not all groups have benefited equally. We analysed secondary 2006 and 2018–19 data to monitor disparities in reproductive, maternal, and child health care in Somalia.MethodsThe study’s variables of interest are the percentage of contraceptive prevalence through modern methods, adolescent fertility rate, prenatal care, the rate of births attended by midwives, the rate of births in a health care facility, the rate of early initiation of breastfeeding, stunting and wasting prevalence and care-seeking for children under-five. As the outcome variable, we analysed the under-five mortality rate. Using reliable data from secondary sources, we calculated the difference and ratio of the best and worst-performing groups for 2006 and 2018–19 in Somalia and measured the changes between the two.ResultsBetween 2006 and 2018–19, An increase in the difference between women with high and low incomes was noticed in terms of attended labours. Little change was noted regarding socioeconomic inequities in breastfeeding. The difference in the stunting prevalence between the highest and lowest income children decreased by 20.5 points, and the difference in the wasting prevalence of the highest and the lowest income children decreased by 9% points. Care-seeking increased by 31.1% points. Finally, although under-five mortality rates have decreased in the study period, a marked income slope remains.ConclusionsThe study's findings indicate that Somalia achieved significant progress in reducing malnutrition inequalities in children, a positive development that may have also contributed to the decrease in under-five mortality rate inequities also reported in this study. However, an increase in inequalities related to access to contraception and healthcare for mothers is shown, as well as for care-seeking for sick children under the age of five. To ensure that all mothers and children have equal access to healthcare, it is crucial to enhance efforts in providing essential quality healthcare services and distributing them fairly and equitably across Somalia.

What's Behind the Dramatic Pre-2020 Declines in Hispanic/Latina Adolescent Childbearing? Decomposing Change by Age, Origin, and Nativity

PurposeTo assess whether the large declines in adolescent childbearing among Hispanic adolescents over the period 2000-2019 have been driven by co-occurring changes in the composition of the Hispanic population and, if so, whether they have done so differentially by Hispanic subgroup. MethodsWe use birth counts from the United States vital statistics system and population denominators from the United States decennial census long form 5-percent Public Use Microdata and the American Community Survey to conduct a decomposition analysis apportioning observed declines in Hispanic adolescent childbearing to: (1) compositional shifts in nativity, age, and region-of-origin and (2) subgroup changes in childbearing rates. ResultsThe Hispanic adolescent fertility rate fell by over 71% from 2000 to 2019, with Mexican-Origin, United States-born, and younger adolescents exhibiting the steepest declines (79%, 70%, and 80% declines, respectively). Results from the decomposition analysis show that almost 90% of the decline is due to within-group rate change, with some variability by subgroup and by decade. Only 10% of the decline was due to compositional changes, with shifts in nativity driving much of the effect. DiscussionDeclines in Hispanic adolescent childbearing over the last decades have occurred in spite of substantial shifts in the composition of the Hispanic population, not because of them. These findings set the stage for a more detailed examination of the drivers of change in sexual activity, contraceptive use, and abortion, all of which are proximate determinants of adolescent pregnancy and childbearing. Additionally, a focus on more distal factors is needed, including the role that changing political, societal, and economic conditions in the United States have for early fertility patterns.

Using Total Cohort Fertility in Adolescence (TCFA) to analyse adolescent fertility trends and factors in Niger: Evidence from 1992 to 2012 demographic and health surveys.

Girls aged 10-19 currently represent 12% of Niger's population (2020). And this number continues to grow as the fertility rate is higher while mortality is declining faster. Using Niger's demographic and health surveys carried out between 1992 and 2012, the study investigated adolescent fertility, its trends and associated factors. It mobilised descriptive methods (Total cohort fertility in adolescence (TCFA) computation, distribution of the number of adolescent births, and computation of adolescent cohort childbearing mean age) and multivariate Logistic and Poisson models. The result shows the TCFA went from 1.29 in 1992 to 1.17 in 2012. Early sexual intercourse and marriage, infant mortality, the desire for a large family, and urbanisation are among the factors significantly associated with adolescent fertility in Niger. The study concludes that the high level of adolescent fertility in Niger does not seem to be changing.