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Updated: Oct 5, 2025

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Methodological Considerations for Preterm Birth Research.

Thokozile R Malaba1, Marie-Louise Newell2,3, Landon Myer1,4

  • 1Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa.

Frontiers in Global Women'S Health
|January 28, 2022
PubMed
Summary
This summary is machine-generated.

Maternal infection is a key factor in preterm birth, especially in low-income nations. Research on HIV and ART needs to address biases to accurately understand preterm birth risks.

Keywords:
HIVantiretroviral therapy (ART)bias (epidemiology)low middle income countries (LMICs)maternal infectionsmethodologypreterm birth (PTB)

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Area of Science:

  • Public Health
  • Epidemiology
  • Infectious Diseases

Background:

  • Preterm birth complications are a major cause of infant mortality and long-term health issues.
  • Maternal infection is a significant etiological pathway for preterm birth, particularly in low-to-middle income countries.
  • In sub-Saharan Africa, maternal HIV infection and antiretroviral therapy (ART) use are linked to increased preterm birth risk.

Purpose of the Study:

  • To focus on the maternal infection pathway of preterm birth.
  • To highlight methodological considerations, specifically selection and measurement bias, in preterm birth research.
  • To illustrate the impact of biases on studies examining the relationship between HIV/ART and preterm births.

Main Methods:

  • Review of methodological considerations in preterm birth research.
  • Illustration of bias impact using HIV/ART and preterm birth studies.
  • Discussion of population-level data estimation challenges.

Main Results:

  • Methodological biases, including selection and measurement bias, can significantly impact research findings on preterm birth.
  • Studies investigating the link between HIV/ART and preterm births are particularly susceptible to these biases.
  • Challenges exist in obtaining accurate population-level estimates from routine data.

Conclusions:

  • Strengthening antenatal care services is crucial for improving the quality of population data on preterm birth.
  • Optimizing current and future study designs by addressing methodological considerations is essential.
  • Accurate research on preterm birth risk factors, like HIV/ART, requires careful bias mitigation.