Evidence mapPaperPMID 42321811Full record

ArticleInternational breastfeeding journal2026

Barriers to breastfeeding and targeted breastfeeding social transfer programs in São Paulo, Brazil: a qualitative study.

Stephanie Khoury, Ana Carolina Onofre, Barbara Sartorio, Kelly Coca, Maira Luchini Costa, Najmeh Karimian-Marnani, Sonja Merten, Alexandra Brentani, Jordyn Wallenborn

Registry-linked trialAbstract read
In one paragraph

Article in International breastfeeding journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06157697 (Social Transfers for Exclusive Breastfeeding in São Paulo, Brazil), which is not on this map. Not yet cited in PubMed.

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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.

NCT06157697 naterminatednot on this map

Social Transfers for Exclusive Breastfeeding in São Paulo, Brazil

TypeinterventionalSponsorSwiss Tropical & Public Health InstituteRan2025 to 2026Enrolled300ConditionsBreast Feeding, Exclusive, Breastfeeding, Development, Child, Development, InfantArmsSocial Transfer
3 · Its place in the literature

Who cites it

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No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

9 authors.

Stephanie KhouryUniversity of Basel, Basel, Switzerland. stephanie.khoury@swisstph.ch.ORCID https://orcid.org/0000-0002-8888-276X
Ana Carolina OnofreFaculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil.
Barbara SartorioPaulista School of Nursing, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.
Kelly CocaPaulista School of Nursing, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.
Maira Luchini CostaUniversity of Basel, Basel, Switzerland.
Najmeh Karimian-MarnaniUniversity of Basel, Basel, Switzerland.
Sonja MertenUniversity of Basel, Basel, Switzerland.
Alexandra Brentani *Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil.
Jordyn Wallenborn *University of Basel, Basel, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExclusive breastfeeding (EBF) is recommended for the first six months of life, yet only 48% of infants under six months are exclusively breastfed worldwide. Breastfeeding rates vary significantly across regions, countries, and even within cities. Brazil reports national rates of EBF of approximately 50%; however, there are notable in-country socioeconomic disparities, where EBF prevalence is lower in low-income communities compared to the wealthier communities. This study aims to: 1) investigate barriers to breastfeeding by exploring perceptions and experiences of breastfeeding in low-income communities in São Paulo, Brazil, and 2) evaluate the perceptions of a targeted social transfer program to improve EBF prevalence at six months.

methodsWe conducted a semi-structured, exploratory, qualitative study in low-income communities in São Paulo, Brazil using focus group discussions (FGD) and key informant interviews (KII). Three FGDs were conducted, two with mothers and one with fathers (n = 14), alongside five KIIs with key stakeholders, including a nurse, neonatologist, social worker, and representatives from the Brazilian Ministries of Health and Social Development (n = 5), with a total sample of 19 participants. An inductive thematic analysis approach was used to develop the codebook and identify recurrent themes across transcripts.

resultsDespite the overall positive outlook on breastfeeding, FGDs and KIIs revealed several challenges, including economic, health system, and sociocultural barriers that hinder both initiation and continuation of breastfeeding. A targeted social transfer program was identified as a potential mechanism to address these barriers and support breastfeeding outcomes.

conclusionsThe identified barriers highlight the complexity of breastfeeding in low-income settings. Strengthening the existing breastfeeding social transfer program, Auxílio Nutriz, may serve as a supportive mechanism to address identified barriers and support breastfeeding practices. Understanding these challenges is a critical step toward developing coordinated, cross-sectoral interventions that support sustained breastfeeding practices. These findings have important implications for public health policy and program design, providing an evidence base for targeted interventions aimed at reducing inequities in breastfeeding outcomes among vulnerable populations.

trial registrationThe RCT was registered on ClinicalTrial.gov on December 6, 2023 (NCT06157697); https://clinicaltrials.gov/study/NCT06157697?term=STEBB%26rank=1 .

Indexed as

Breast FeedingHealth PromotionMothersAdultBrazilFemaleFocus GroupsHumansInfantInfant, NewbornMalePovertyQualitative ResearchSocioeconomic FactorsBarriersBrazilExclusive breastfeedingQualitative researchSocial transfer programs

Identifiers

PMID42321811
PMCPMC13450255

What Socratic holds

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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 Socratic graph.