The LIFE Study: Low Birthweight Infant Feeding Exploration

Launched in 2019, Ariadne Labs’ Low Birthweight Infant Feeding Exploration (LIFE) study documents current feeding practices, growth patterns, child development, and other health outcomes among more than 1,100 low birthweight infants in low- and middle-income countries. 

  • The study set out to identify which infants are at highest risk, illustrate how low birthweight infants feed, grow and develop, and create a research agenda around findings and remaining evidence gaps

Globally, 20.5 million infants are born low birthweight each year. These infants account for up to 80% of newborn deaths — 1.9 million deaths annually — and are 20 times more likely to die than normal birthweight infants. They also face heightened risk of illness, growth deficits, and developmental delays. Low- and middle-income countries bear the greatest burden of both low birthweight births and neonatal deaths.

In recent years, global attention to newborns and low birthweight infants has grown. In 2015, the United Nations named ending preventable deaths of newborns and children by 2030 as a Sustainable Development Goal, and in 2020, the WHO published standards for improving the quality of care for small and sick newborns in health facilities.  To make progress toward these goals, researchers, policymakers, clinicians, and funders need a stronger evidence base — one that can sharpen existing feeding guidelines and pinpoint priorities for further research. The LIFE study helped fill that gap to ensure low birthweight infants have the chance to survive and thrive.

Key Findings

The key actions from LIFE that led to the LIFT-UP project and GIGS project are: 

  • Develop, evaluate, and scale programs that provide effective, specialized lactation support, and feeding counseling to address the needs of low birthweight infants in facilities and communities.
  • Proactively identify and prioritize resources in early infancy to infants at highest risk for mortality and poor growth outcomes.
  • Assess the role of breastmilk volume intake and nutrient composition on growth of LBW infants.

LIFE Publications

Facilitators, barriers, and key influencers of breastfeeding among low birthweight infants: a qualitative study in India, Malawi, and Tanzania

International Breastfeeding Journal · November 2023

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Lessons learned in implementing the Low Birthweight Infant Feeding Exploration study: A large, multi-site observational study

BJOG: an International Journal of Obstetrics & Gynaecology · July 2023

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Changes in moderately low birthweight infant feeding, care, and health outcomes before compared to during the COVID-19 pandemic in Malawi

Journal of Global Health · June 2023

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Safe infant feeding in healthcare facilities: Assessment of infection prevention and control conditions and behaviors in India, Malawi, and Tanzania

PLOS Global Public Health · June 2023

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Facility-based care for moderately low birthweight infants in India, Malawi, and Tanzania

PLOS Global Public Health · April 2023

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Feeding practices and growth patterns of moderately low birthweight infants in resource-limited settings: results from a multisite, longitudinal observational study

BMJ Open · February 2023

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Mixed-methods, descriptive and observational cohort study examining feeding and growth patterns among low birthweight infants in India, Malawi and Tanzania: the LIFE study protocol

BMJ Open · December 2021

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LIFE Study Consortium Partners

  • Ariadne Labs, United States
  • Jawaharlal Nehru Medical College, Belgaum, India
  • University of North Carolina–Project Malawi, Lilongwe, Malawi
  • Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
  • Emory University, Atlanta, GA
  • Brigham and Women’s Hospital, Boston, MA
  • Boston Children’s Hospital, Boston, MA
  • Harvard T.H. Chan School of Public Health, Boston, MA
  • PATH, Seattle, WA
  • University of North Carolina, Chapel Hill