Peer-reviewed article
Child stunting starts in utero: Growth trajectories and determinants in Ugandan infants
Grace Namirembe, Shibani Ghosh, Lynne M. Ausman, Robin Shrestha, Sonia Zaharia et al. ·
Summary
Written by AI, not yet AICS's view · claude-sonnet-5-5This study followed a birth cohort of 4,528 Ugandan infants from birth to one year to see how their growth changed over time. It found four distinct growth patterns, and in two of the groups stunting was already present at birth. One of these groups stayed stunted, while the other recovered by about four months. The authors argue that nutrition programmes should consider these different patterns instead of relying on population averages.
Key points
- Four growth patterns were found: chronically stunted, recovery, borderline stunted and normal.
- Stunting began before birth; average length-for-age z-scores at birth were -2.6, -3.9, -0.6 and 0.5 for Groups 1 to 4.
- Group 1 stayed stunted, while Group 2 recovered by the fourth month.
- Wasting and underweight appeared in all groups, with underweight most common in Group 1.
- Wasting gradually increased among children born already stunted (Groups 1 and 2).
Limitations
The abstract does not report the specific risk factors linked to each growth group or the effect sizes. It describes growth patterns only up to age one and cannot show causes or how well any intervention works.
Abstract
AbstractChildhood stunting remains a public health burden worldwide. Although many studies have examined early life and in‐utero risk factors; most have been observational and have used analytic techniques that make inferences limited to population means, thereby obscuring important within‐group variations. This study addressed that important gap. Using data from a birth cohort of Ugandan infants (n = 4528), we applied group‐based trajectory modelling to assess diverse patterns of growth among children from birth to 1‐year old. A multinomial regression model was conducted to understand the relationship between risk factors and observed patterns across groups. We found that the onset of stunting occurred before birth and followed four distinct growth patterns: chronically stunted (Group 1), recovery (Group 2), borderline stunted (Group 3) and normal (Group 4). The average length‐for‐age z‐score (LAZ) at birth was −2.6, −3.9, −0.6 and 0.5 for Groups 1–4, respectively. Although both Groups 1 and 2 were stunted at birth, stunting persisted in Group 1 while children in Group 2 recovered by the fourth month. Group 3 exhibited mild stunting while Group 4 was normal. Wasting and underweight were observed in all groups, with the highest prevalence of underweight in Group 1. Wasting gradually increased among children born already stunted (Groups 1 and 2). This showed the importance of distinguishing children by their growth patterns rather than aggregating them and only comparing population averages against global growth standards. The design of nutrition interventions should consider the differential factors and potential for growth gains relative to different risks within each group.