The American journal of clinical nutrition · 2026
Association of maternal prepregnancy malnutrition with offspring growth trajectories: a secondary data analysis of the Women First Trial.
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Sagastume Diana, Polman Katja, Ramírez-Zea Manuel, Beňová Lenka, Peñalvo José L
Аннотация
BACKGROUND: As coexisting forms of maternal malnutrition increase globally, understanding their impact on children's linear growth is vital.
OBJECTIVES: We aimed to examine the association between maternal prepregnancy malnutrition, both single and coexistent forms, and their offspring's linear growth across the first 24 mo of life.
METHODS: This study is a secondary data analysis using data on mother-child pairs from the Women First Trial, a randomized controlled trial evaluating maternal nutrition supplementation conducted in the Democratic Republic of the Congo, Guatemala, India, and Pakistan. Using measured height and weight indicators, maternal prepregnancy malnutrition was classified as normal, underweight, short stature, overweight/obesity, underweight and short stature, or short stature and overweight/obesity. Latent class growth analysis was employed to identify offspring's linear growth trajectories using length-for-age z-score from birth to 24 mo. Poisson regression assessed the association between maternal prepregnancy malnutrition and offspring growth trajectories.
RESULTS: We analyzed data from 2228 mother-child pairs. Before pregnancy, 63% of mothers presented malnutrition: 17% underweight, 22% short stature, 6% overweight/obesity, 6% underweight and short stature, and 11% short stature and overweight/obesity. Two offspring growth trajectories emerged: no/mild growth faltering (n = 1238) and severe growth faltering (n = 990). Compared with children of mothers with a prepregnancy normal anthropometric status, those born to mothers with underweight [adjusted relative risk (aRR): 1.09; 95% confidence interval (CI): 1.02, 1.15], short stature (aRR: 1.17; 95% CI: 1.11, 1.24), underweight and short stature (aRR: 1.18; 95% CI: 1.09, 1.27), and short stature and overweight/obesity (aRR: 1.17; 95% CI: 1.08, 1.27) had higher risks of severe growth faltering.
CONCLUSIONS: Maternal prepregnancy short stature, alone or combined with underweight or overweight/obesity, is associated with an increased risk of suboptimal linear growth in children during the first 24 mo. These findings underscore the importance of addressing maternal nutritional status before pregnancy as part of broader efforts to improve child growth outcomes in low-resource settings. This trial was registered at clinicaltrials.gov as NCT01883193; https://clinicaltrials.gov/study/NCT01883193.
OBJECTIVES: We aimed to examine the association between maternal prepregnancy malnutrition, both single and coexistent forms, and their offspring's linear growth across the first 24 mo of life.
METHODS: This study is a secondary data analysis using data on mother-child pairs from the Women First Trial, a randomized controlled trial evaluating maternal nutrition supplementation conducted in the Democratic Republic of the Congo, Guatemala, India, and Pakistan. Using measured height and weight indicators, maternal prepregnancy malnutrition was classified as normal, underweight, short stature, overweight/obesity, underweight and short stature, or short stature and overweight/obesity. Latent class growth analysis was employed to identify offspring's linear growth trajectories using length-for-age z-score from birth to 24 mo. Poisson regression assessed the association between maternal prepregnancy malnutrition and offspring growth trajectories.
RESULTS: We analyzed data from 2228 mother-child pairs. Before pregnancy, 63% of mothers presented malnutrition: 17% underweight, 22% short stature, 6% overweight/obesity, 6% underweight and short stature, and 11% short stature and overweight/obesity. Two offspring growth trajectories emerged: no/mild growth faltering (n = 1238) and severe growth faltering (n = 990). Compared with children of mothers with a prepregnancy normal anthropometric status, those born to mothers with underweight [adjusted relative risk (aRR): 1.09; 95% confidence interval (CI): 1.02, 1.15], short stature (aRR: 1.17; 95% CI: 1.11, 1.24), underweight and short stature (aRR: 1.18; 95% CI: 1.09, 1.27), and short stature and overweight/obesity (aRR: 1.17; 95% CI: 1.08, 1.27) had higher risks of severe growth faltering.
CONCLUSIONS: Maternal prepregnancy short stature, alone or combined with underweight or overweight/obesity, is associated with an increased risk of suboptimal linear growth in children during the first 24 mo. These findings underscore the importance of addressing maternal nutritional status before pregnancy as part of broader efforts to improve child growth outcomes in low-resource settings. This trial was registered at clinicaltrials.gov as NCT01883193; https://clinicaltrials.gov/study/NCT01883193.