Summary of articles describing stunting-related interventions in Guatemala 2000–2018
Study | Design | Nutrition specific Interventions* | Brief summary |
Li et al 16 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting educational attainment outcomes for adults who had previously participated in the prior childhood supplementation trial |
Stein et al 20 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting the intergenerational impact of prior childhood supplementation trial on birth length |
Conlisk et al 19 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting reduced fasting glucose among men who had participated in the prior childhood supplementation trial on birth length. Among supplemented women, the effect was only seen among those born thin |
Stein et al 44 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting improvement in some adult cardiovascular risk factors and no evidence for increased cardiovascular risk among those who had participated in the prior childhood supplementation trial |
Begin et al 21 | Individually randomised, single-level | Dietary supplementation | Reports no differential impact on stunting for four different supplemental foods, containing either bovine serum concentrate or whey protein concentrate, with or without micronutrients |
Hoddinott et al 17 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting the positive economic impact on adult income for those who had participated in the prior childhood supplementation trial |
Stein et al 45 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting the positive impact on reading comprehension and abstract reasoning among adults who had participated in the prior childhood supplementation trial |
Maluccio et al 18 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting improved grade completion and reading and nonverbal cognition among adults who had participated in the prior childhood supplementation trial |
Behrman et al 46 | Cluster randomised, single-level | Dietary supplementation | INCAP Study publication, reporting improvements in offspring growth, including stunting, for women who had participated in the prior childhood supplementation trial |
Mazariegos et al 22 | Individually randomised, single-level | Dietary supplementation | In a rural indigenous population, reports lack of impact on stunting of either zinc supplementation or low-phytate corn |
Krebs et al 23 | Cluster randomised, single-level | Dietary supplementation | A Global Network for Women’s and Children’s Health Research multi-country study, including rural Guatemala, showing no impact of meat or fortified cereal supplementation on stunting |
Newman et al 47 | Cluster randomised, single-level | Dietary supplementation | A Global Network for Women’s and Children’s Health Research study. Exploration of between-group differences from the negative Krebs et al 23 study, showing that between-group variation or issues with protocol fidelity did not explain the lack of intervention impact on stunting |
Jensen et al 26 | Cluster randomised, multiple-level | Dietary supplementation, complementary feeding practices | Multi-level intervention, including food supplementation and behaviour change interventions around complementary feeding practices, showing improvements in household dietary diversity |
Palacios24 | Quasi-experimental, single-level | Dietary supplementation | Prenalysis and postanalysis showing improvements in the linear growth of a fortified cereal product |
Martinez et al 27 | Individually-randomised, multiple-level | Dietary supplementation, complementary feeding practices | Multiple-level intervention, including food supplementation and behaviour change interventions around complementary feeding practices, improved diet quality compared with a single-level food supplementation intervention |
Martinez et al 28 | Individually-randomised, multiple-level | Dietary supplementation, complementary feeding practices | Reports significantly improved developmental outcomes for stunted children from the Martinez (2018)27 trial with, however, no significant difference between the multilevel and single-level arms |
Olney et al 29 | Cluster randomised, multiple-level | Dietary supplementation, complementary feeding practices | Reports outcomes data from the same population studied in Jensen.26 Improvements in both early (1 month) and later (24 months) stunting, especially in clusters which received both family food rations and fortified cereal or multiple micronutrient powder targeted to the child |
*No studies were found evaluating any nutrition-sensitive interventions, and so a column for this is not included in the table.
INCAP, Institute of Nutrition of Central America and Panama.