Evidence map›Paper›PMID 41225474›Full record

Trial reportReproductive health2025

Unmet need for contraceptives and unintended pregnancies among adolescent girls and young women aged 15 to 24 in Zambia: insights from the Yathu Yathu trial.

Anke Rotsaert, Mwelwa Phiri, Lucheka Sigande, Ab Schaap, Rosemary Zulu-Phiri, Melvin Simuyaba, Louis Mwape, Sian Floyd, Sarah Fidler, Richard Hayes and 3 more

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Reproductive health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04060420 (Yathu Yathu), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04060420 naunknown statusnot on this map

Yathu Yathu ("For us, by us"): A Cluster-randomized Trial of Comprehensive Community-based Peer-led Sexual and Reproductive Health Services for Adolescents and Young People Aged 15 to 24 in Lusaka, Zambia

TypeinterventionalSponsorLondon School of Hygiene and Tropical MedicineRan2019 to 2022Enrolled2,000ConditionsHIV Infections, Sexually Transmitted DiseasesArmsComprehensive sexual and reproductive health services
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Anke RotsaertDepartment of Public Health, Institute of Tropical Medicine, Nationalestraat 155 Antwerp, Antwerp, 2000, Belgium. arotsaert@itg.be.
Mwelwa PhiriZambart, Lusaka, Zambia.
Lucheka SigandeZambart, Lusaka, Zambia.
Ab SchaapZambart, Lusaka, Zambia.
Rosemary Zulu-PhiriZambart, Lusaka, Zambia.
Melvin SimuyabaZambart, Lusaka, Zambia.
Louis MwapeZambart, Lusaka, Zambia.
Sian FloydDepartment of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK.
Sarah FidlerImperial College London, Imperial College National Institute of Health Research BRC, London, UK.
Richard HayesDepartment of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK.
Musonda SimwingaZambart, Lusaka, Zambia.
Helen AylesZambart, Lusaka, Zambia.
Bernadette HensenDepartment of Public Health, Institute of Tropical Medicine, Nationalestraat 155 Antwerp, Antwerp, 2000, Belgium.

Funding

UK Medical Research Council and National Institute for Health Research MR/R022216/1
6 · The paper itself

Abstract

backgroundIn Sub-Saharan Africa, unmet need for contraceptives often remains high among adolescent girls and young women (AGYW), leading to unintended pregnancies. Yathu Yathu, a cluster-randomised trial of a community-based intervention conducted in two communities in Lusaka, Zambia (2019-2021), aimed to provide sexual and reproductive health services, including contraceptive services, to adolescents and young people. The trial showed no impact on pregnancy related outcomes. Hence, this analysis examined the characteristics of AGYW aged 15-24 with an unmet need for modern contraceptives and who experienced an unintended pregnancy. We also explored access to and reach of contraceptive services through Yathu Yathu.

methodsSecondary analysis of Yathu Yathu endline survey data. Using logistic regression, adjusted for cluster, we explored factors associated with unmet need for modern contraceptives and unintended pregnancies among AGYW in the intervention arm and assessed whether these associations differed in the control arm. Using routinely collected service delivery data from the intervention arm, numbers of AGYW accessing hormonal contraceptive services were described by age, community, educational attainment, and marital status.

resultsIn the intervention arm, 395 AGYW ever had sex. Unmet need for modern contraceptives was 40.6% (101/249) among AGYW who had sex in the last 12 months and wished to prevent or space childbearing. Unmet need was higher among younger and single/never married AGYW; in control zones unmet need was additionally higher among those currently in school or with infrequent discussion about sexual health promotion with their sexual partners. Among AGYW ever having had sex, 42.1% (165/392) reported an unintended pregnancy. This was higher among AGYW aged 20-24 years and currently not in school, and additionally among those in control zones who reported food absence. According to the routinely collected data, 12.3% (859/7005) of AGYW in intervention zones initiated hormonal contraceptives; 53.6% (460/859) returned for refills. Uptake was higher among AGYW aged 20-24, residing in community 2, with no/primary education and being married/cohabiting (p < 0.001).

conclusionsThis study highlights persistent challenges in addressing unmet need for modern contraceptives and unintended pregnancies among AGYW, emphasising the need for targeted interventions to improve equitable access among younger and single/never married AGYW.

trial registrationNCT04060420; https://clinicaltrials.gov/ct2/show/NCT04060420 ; and ISRCTN75609016. Registration date: 2019-08-12.

Indexed as

ContraceptionContraceptive AgentsFamily Planning ServicesHealth Services Needs and DemandPregnancy, UnplannedReproductive Health ServicesAdolescentContraception BehaviorFemaleHealth Services AccessibilityHumansPregnancyYoung AdultZambiaContraceptive AgentsAGYWModern contraceptivesUnintended pregnanciesUnmet needZambia

Identifiers

PMID41225474
PMCPMC12606938

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.