Related Experiment Video
Updated: Jan 21, 2026
Author Spotlight: Developing a Point-of-Care Hemoglobin Estimation Method for Anemia Management
Published on: January 19, 2024
Dynamic Anemia Status from Infancy to Preschool-Age: Evidence from Rural China
Lei Wang1, Mengjie Li2, Sarah-Eve Dill3
1International Business School, Shaanxi Normal University, Xi'an 710119, China. wangleiml@163.com.
Insights
Anemia affects over half of infants in rural China, with many children experiencing it at some point. Nutritional interventions are crucial, especially during toddler to preschool years, to improve child health and cognition.
Area of Science:
- Pediatric Nutrition
- Child Health Epidemiology
- Nutritional Deficiencies
Background:
- Anemia is a significant nutritional deficiency in infants and toddlers in rural China.
- The longitudinal changes in anemia status among these children are not well understood.
- Understanding anemia dynamics is vital for targeted public health interventions.
Purpose of the Study:
- To investigate the prevalence and changes in anemia status in children from infancy to preschool age in rural China.
- To identify critical periods for anemia development or persistence.
- To explore the relationship between anemia status and cognitive development.
Main Methods:
- Longitudinal study involving 1170 children in the Qinba Mountain Area, China.
- Data collected through surveys in 2013, 2015, and 2017, covering infancy to preschool age.
- Analysis of anemia prevalence, dynamic status changes, and correlation with cognition.
Main Results:
- Anemia prevalence was 51% in infancy, 24% in toddlerhood, and 19% at preschool age.
- 67% of children experienced anemia at some point; 4% were persistently anemic.
- Anemia risk increased between toddlerhood and preschool age; improving anemia correlated with higher cognition.
Conclusions:
- Anemia is a pervasive issue in rural Chinese children, with significant changes over time.
- The toddler to preschool period presents a critical window for anemia intervention.
- Effective nutritional strategies are urgently needed to combat childhood anemia and support cognitive development.
Abstract:
Anemia is a serious nutritional deficiency among infants and toddlers in rural China. However, it is unclear how the anemia status changes among China's rural children as they age. This study investigates the prevalence of anemia as children grow from infancy to preschool-age, as well as the dynamic anemia status of children over time. We conducted longitudinal surveys of 1170 children in the Qinba Mountain Area of China in 2013, 2015 and 2017. The results show that 51% of children were anemic in infancy (6-12 months), 24% in toddlerhood (22-30 months) and 19% at preschool-age (49-65 months). An even larger share of children (67%) suffered from anemia at some point over the course of study. The data also show that although only 4% of children were persistently anemic from infancy to preschool-age, 8% of children saw their anemia status deteriorate. We further found that children may be at greater risk for developing anemia, or for having persistent anemia, during the period between toddlerhood and preschool-age. Combined with the finding that children with improving anemia status showed higher cognition than persistently anemic children, there is an urgent need for effective nutritional interventions to combat anemia as children grow, especially between toddlerhood and preschool age.
More Related Videos
Related Concept Videos
02:55The Evidence for Evolution
01:30Socioemotional Development during Infancy
Primary Temperament Types
01:26Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
01:26Marcia's Theory of Identity Status
01:19The Effect of Aging on Tissues
02:20Dynamic Equilibrium