Related Experiment Video
Updated: Jan 29, 2026

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting
Published on: January 12, 2018
Planning, Implementing, and Running a Multicentre Preterm Birth Study with Biobank Resources in Brazil: The Preterm
Renato T Souza1, Jose G Cecatti1, Maria L Costa1
1Department of Obstetrics and Gynecology, University of Campinas (UNICAMP), School of Medical Sciences, Campinas, SP, Brazil.
Insights
This study details the planning and execution of the Preterm SAMBA multicentre cohort study in Brazil, focusing on identifying preterm birth risk using a maternal biobank. Lessons learned offer valuable insights for future reproductive and perinatal health research.
Area of Science:
- Reproductive Health
- Perinatal Epidemiology
- Biobanking
Background:
- The Preterm SAMBA study, a multicentre cohort, was established in Brazil to investigate maternal and perinatal health.
- It utilized a high-quality biobank of maternal serum, plasma, and hair samples across five Brazilian sites.
- The study aimed to identify women at higher risk for preterm birth and other complications in a middle-income country context.
Purpose of the Study:
- To describe the comprehensive planning, implementation, and operational phases of the Preterm SAMBA multicentre cohort study.
- To validate metabolite biomarkers for preterm birth prediction in a Brazilian cohort of low-risk nulliparous pregnant women.
- To document strategies and address barriers encountered during the study for future research guidance.
Main Methods:
- Detailed description of the planning, implementation, and maintenance procedures for a multicentre cohort study.
- Inclusion of low-risk nulliparous pregnant women for biomarker validation.
- Emphasis on strategies and resources developed by the Brazilian Network for Studies on Reproductive and Perinatal Health.
Main Results:
- Identification of various barriers and successful strategies across different study levels (steering committee, coordinating, and local centers).
- Highlighting the role of the Brazilian Network's legacy in training collaborators for complex research settings.
- Demonstration of effective resource utilization and collaborative approaches in multicentre research.
Conclusions:
- The Brazilian Network has gained significant experience in conducting multicentre cohort studies with biobanks.
- This experience provides a valuable resource for other research groups planning similar maternal and perinatal health studies.
- The study's findings and methodologies can inform the development of future reproductive and perinatal health research networks.
Background:
Our aim was to describe the steps in planning, implementing, and running a multicentre cohort study of maternal and perinatal health using a high-quality biobank comprised of maternal serum, plasma, and hair samples collected from five sites in Brazil. The Preterm SAMBA study, conducted by the Brazilian Network for Studies on Reproductive and Perinatal Health, was an innovative approach used to identify women at higher risk for preterm birth. It is also of great importance in the study of other maternal and perinatal complications in the context of Brazil, which is a middle-income country.
Methods:
We described phases of planning, implementing, and running the Preterm SAMBA study, a multicentre Brazilian cohort study of low-risk nulliparous pregnant women, to validate a set of metabolite biomarkers for preterm birth identified in an external cohort. Procedures and strategies used to plan, implement, and maintain this multicentre preterm birth study are described in detail. Barriers and experience cited in the current narrative are not usually discussed in the scientific literature or published study protocols.
Results:
Several barriers and strategies were identified in different phases of the Preterm SAMBA study at different levels of the study framework (steering committee; coordinating and local centres). Strategies implemented and resources used in the study are a legacy of the Brazilian Network, aimed at training collaborators in such complex settings.
Conclusion:
The Brazilian Network for Studies on Reproductive and Perinatal Health has gained some experience in conducting a multicentre cohort study using a resourceful biobank which may be helpful to other research groups and maternal/perinatal health networks that plan on employing a similar approach to a similar background.
Related Concept Videos
Role of Communication in the Nursing Process II: Planning and Implementation
Nursing Process for Patient and Caregiver Teaching II: Planning and Implementation
Birth Control Methods
Case Studies
Short-distance Transport of Resources
Wald-Wolfowitz Runs Test II
For binary data, runs are identified using symbols such as + and −, or equivalently, 1s and 0s. In...

