Original Research Article
Short but catching up: Statural growth among native Amazonian Bolivian children
Article first published online: 20 OCT 2009
Copyright © 2009 Wiley-Liss, Inc.
American Journal of Human Biology
Volume 22, Issue 3, pages 336–347, May/June 2010
How to Cite
Godoy, R., Nyberg, C., Eisenberg, D. T.A., Magvanjav, O., Shinnar, E., Leonard, W. R., Gravlee, C., Reyes-García, V., Mcdade, T. W., Huanca, T., Tanner, S. and Bolivian TAPS Study Team (2010), Short but catching up: Statural growth among native Amazonian Bolivian children. Am. J. Hum. Biol., 22: 336–347. doi: 10.1002/ajhb.20996
- Issue published online: 7 APR 2010
- Article first published online: 20 OCT 2009
- Manuscript Accepted: 8 AUG 2009
- Manuscript Revised: 7 AUG 2009
- Manuscript Received: 10 MAR 2009
- The Cultural and Physical Anthropology Programs of NSF
The ubiquity and consequences of childhood growth stunting (<−2 SD in height-for-age Z score, HAZ) in rural areas of low-income nations has galvanized research into the reversibility of stunting, but the shortage of panel data has hindered progress. Using panel data from a native Amazonian society of foragers-farmers in Bolivia (Tsimane'), we estimate rates of catch-up growth for stunted children. One hundred forty-six girls and 158 boys 2 ≤ age ≤ 7 were measured annually during 2002–2006. Annual Δ height in cm and in HAZ were regressed separately against baseline stunting and control variables related to attributes of the child, mother, household, and village. Children stunted at baseline had catch-up growth rates 0.11 SD/year higher than their nonstunted age and sex peers, with a higher rate among children farther from towns. The rate of catch up did not differ by the child's sex. A 10% rise in household income and an additional younger sibling lowered by 0.16 SD/year and 0.53 SD/year the rate of growth. Results were weaker when measuring Δ height in cm rather than in HAZ. Possible reasons for catch-up growth include (a) omitted variable bias, (b) parental reallocation of resources to redress growth faltering, particularly if parents perceive the benefits of redressing growth faltering for child school achievement, and (c) developmental plasticity during this period when growth rates are most rapid and linear growth trajectories have not yet canalized. Am. J. Hum. Biol., 2010. © 2009 Wiley-Liss, Inc.