Maternal factors promoting normal linear growth of children from impoverished Rwandan households: a cross-sectional study

Background: Linear growth faltering remains a pervasive public health concern that affects many children worldwide. This study aimed to investigate possible maternal factors promoting normal linear growth among children aged 6-23 months of age from impoverished Rwandan households.

Methods: We used a three-stage cluster sampling procedure. The study population consisted of children aged six to 23 months and their mothers who lived in the study districts. A structured questionnaire helped to collect data from 807 selected mother-child dyads. The primary outcome variable was height-for-age Z scores. The main predictors were maternal income-generating activity, maternal education, maternal depression, household decision making, number of ANC visits, use of family planning method, types of family planning, and mode of delivery. We used univariate analysis to establish median, frequencies, and percentages. Furthermore, we used the Kruskal-Wallis, Mann-Whitney U, and Spearman rank correlation tests for bivariate analysis. We included in the final model of robust linear regression for multivariate analysis the potential confounding variables identified as significantly associated with the outcome (child age, participation in works for both parents, good handwashing practice, owning a vegetable garden, and the total number of livestock) along with maternal factors.

Results: Maternal factors that promoted normal linear growth of children were the presence of maternal income generation activity (β= 0.640 [0.0269 1.253], p value = 0.041), the participation of the mother in the decision-making process of the household (β=0.147 [0.080 0.214], p-value < 0.001), and the higher frequency of consultations with ANC (β=0.189 [0.025 0.354], p-value = 0.024). Additionally, a combination of household decision-making with the number of ANC visits predicted an increase in the linear growth of the child (β=0.032 [0.019 0.045], p-value < 0.001).

Conclusion: Maternal factors such as maternal income-generating activity, maternal participation in household decision making, and increased number of ANC visits were found to promote normal child linear growth. These results contribute valuable information to the formulation of interventions and policies to improve child nutrition and growth in the community studied.