PMID- 35773654 OWN - NLM STAT- MEDLINE DCOM- 20220704 LR - 20220716 IS - 1471-2431 (Electronic) IS - 1471-2431 (Linking) VI - 22 IP - 1 DP - 2022 Jun 30 TI - Age heterogeneities in child growth and its associated socio-demographic factors: a cross-sectional study in India. PG - 384 LID - 10.1186/s12887-022-03415-x [doi] LID - 384 AB - BACKGROUND: The impacts of socio-demographic and environmental risk factors on child growth have been widely documented. However, it remains unclear whether the impacts of such risk factors on child growth have remained static or changed with child's age. The present study aims to assess the underlying age heterogeneities in child growth and its potential determinants over age in under-five children. METHODS: Cross-sectional data on child height (measured as height-for-age z-score, i.e., HAZ) and weight (measured as weight-for-age z-score, i.e., WAZ) and potential confounding factors from India's 2015-16 National Family Health Survey (NFHS) were used to construct anthropometric age-profiles by a number of bio-demographic and socioeconomic characteristics. Further, age-interacted multilevel regression analyses were performed to examine differential effects of such/those risk factors on child height and weight by age. RESULTS: Faltered height and weight growth during first two years of life was noticed in children of all socioeconomic groups studied, albeit with varying magnitude. In case of child's height, factors such as short birth interval, higher birth order, maternal education, household wealth, district level mortality rate have shown strong interaction with child's age during the first 23 months, signifying their age-varying role in different developmental stages of child growth. These factors explain the observed upward and downward shifts in height curve during first two years. Some of these variables (e.g., household wealth) have shown even stronger age interactions after the second birthday of children. For child's weight, interactive effects of most socio-demographic risk factors attenuated parabolically with child's age. CONCLUSIONS: The impacts of several risk factors, measured at the child, mother, community, and district levels, on child growth indicators varied significantly with the child's age. Nutritional interventions aimed at preventing poor linear growth in children in India should consider these underlying age heterogeneities for growth determinants into account. CI - (c) 2022. The Author(s). FAU - Yadav, Suryakant AU - Yadav S AUID- ORCID: 0000-0003-1579-9524 AD - Department of Bio-Statistics and Epidemiology, International Institute for Population Sciences, Mumbai, 400088, India. FAU - Bhandari, Pravat AU - Bhandari P AUID- ORCID: 0000-0002-9422-8094 AD - International Institute for Population Sciences, Mumbai, 400088, India. pravat784@gmail.com. LA - eng PT - Journal Article DEP - 20220630 PL - England TA - BMC Pediatr JT - BMC pediatrics JID - 100967804 SB - IM MH - Anthropometry MH - *Birth Intervals MH - *Body Height MH - Child MH - Child, Preschool MH - Cross-Sectional Studies MH - Female MH - Humans MH - India/epidemiology MH - Infant MH - Socioeconomic Factors PMC - PMC9248138 OTO - NOTNLM OT - Age heterogeneities OT - Child growth OT - Height-for-age OT - India OT - Multilevel modelling OT - Socio-demographic factors OT - Weight-for-age COIS- The authors declare that they have no competing interests. EDAT- 2022/07/01 06:00 MHDA- 2022/07/06 06:00 PMCR- 2022/06/30 CRDT- 2022/06/30 23:45 PHST- 2021/12/29 00:00 [received] PHST- 2022/06/13 00:00 [accepted] PHST- 2022/06/30 23:45 [entrez] PHST- 2022/07/01 06:00 [pubmed] PHST- 2022/07/06 06:00 [medline] PHST- 2022/06/30 00:00 [pmc-release] AID - 10.1186/s12887-022-03415-x [pii] AID - 3415 [pii] AID - 10.1186/s12887-022-03415-x [doi] PST - epublish SO - BMC Pediatr. 2022 Jun 30;22(1):384. doi: 10.1186/s12887-022-03415-x.