Peer-reviewed article
Evolution of child acute malnutrition during war in the Gaza Strip, 2023-2024: retrospective estimates and scenario-based projections.
Francesco Checchi, Zeina Jamaluddine ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study developed a mathematical model to estimate and project acute malnutrition in children in Gaza during the 2023-2024 conflict. The model simulates how children's nutritional status changes based on caloric intake, breastfeeding, disease, and malnutrition treatment availability. The research found that acute malnutrition increased significantly in northern Gaza in early 2024, with projections warning of a serious nutritional emergency if food availability remains limited.
Key points
- The mathematical model accurately replicates growth standards and pre-war growth patterns in Gaza
- A considerable increase in acute malnutrition occurred in northern Gaza during early 2024
- Projections for late 2024 indicate a serious nutritional emergency under pessimistic food availability scenarios
- The model incorporates factors including caloric intake, breastfeeding prevalence, infectious disease incidence, and malnutrition treatment coverage
- The model allows for adult caloric sacrifice to supplement child intake during food scarcity
Limitations
This is a modelling study based on mathematical simulations rather than direct measurement of children's nutritional status, so projections depend heavily on assumptions about future conditions. The model requires further validation and development before it can be reliably used for humanitarian decision-making.
Abstract
Nutritional status has been compromised by ongoing war and restrictions on food deliveries in the Gaza Strip. We developed a mathematical model that outputs retrospective estimates and scenario-based projections of acute malnutrition prevalence among children given caloric intake and other factors. We present here the model and its application to the crisis in Gaza. We extended an existing mechanistic model for weight change as a function of energy balance, calibrating it to represent variability in growth curves observed in pre-war Gaza. We simulated open cohorts of children exposed to time-varying caloric intake, infant exclusive breast-feeding prevalence, incidence of infectious disease and coverage of malnutrition treatment, while allowing for adult caloric sacrifice to supplement child intake in times of food scarcity. The model accurately replicates growth standards, pre-war growth patterns and expected parameter dependencies. It suggests that a considerable increase in acute malnutrition occurred in northern Gaza during early 2024. Projections for late 2024 include a serious nutritional emergency if relatively pessimistic assumptions are made about food availability. The model may hold considerable promise for informing decisions in humanitarian response but requires further validation and development.
Findings the Hub has extracted
Each claim below is labelled by its type of design and links back to this report.
- Intervention
- mathematical model for projecting acute malnutrition prevalence based on caloric intake, breastfeeding, disease, and treatment coverage
- Population
- children in Gaza Strip exposed to conflict and food restrictions
Key finding
Model accurately replicates growth standards and pre-war growth patterns in Gaza