Dietary Diversity and Associated Factors among Children 6-23 Months Old in Ethiopia: Systematic Review and Meta-Analysis

Feeding diversified food for children is the major indicator of nutritional quality and adequacy that is crucial during the complementary feeding period for infants and young children aged 6-23 months. Ensuring diversified food is highly essential for the normal growth and development of the infant and young children. In Ethiopia, malnutrition and food insecurity remain prevalent, underscoring the need to understand and improve dietary diversity among children. The primary objective of this review was to determine the pooled prevalence of dietary diversity and its associated factors among children aged 6-23 months in Ethiopia. We thoroughly searched some electronic databases, including Pub Med, Africa Index Medicus, Science Direct, Hinari, and Google Scholar, to perform a meta-analysis. Excel was used to extract and combine the data, while Stata 17 was used for statistical analysis. To estimate pooled prevalence rates and related associated factors, we used a random-effect model and the Der Simonian-Laird technique. The I -test was utilized to examine heterogeneity, and funnel plots, in conjunction with Egger's and Begg's tests, were employed to investigate publication bias. This review analyzed 42 full-text studies, finding a pooled prevalence of 26.78% (95% confidence interval (CI): 23.35-30.21) with significant heterogeneity (I = 98.95%). Maternal education levels-college & above Adjusted Odds Ratio (AOR: 5.377, 95% CI: 3.116-9.279), secondary and above (AOR: 3.324, 95% CI: 1.939-5.700), primary (AOR: 3.065, 95% CI: 2.275-3.129), and formal education (AOR: 2.484, 95% CI: 1.722-3.583)-showed higher odds than counterparts. Similarly, fathers' education-secondary and above (AOR: 2.837, 95% CI: 1.981-4.065) and primary (AOR: 2.082, 95% CI: 1.016-4.266)-and father's occupation as merchant (AOR: 2.739, 95% CI: 1.355-5.539), and mother's occupation as housewife (AOR: 3.636, 95% CI: 2.457-5.381) showed higher odds. Additionally, male child sex (AOR: 1.877, 95% CI: 1.185-2.972), child age 18-23 months (AOR: 2.470, 95% CI: 1.568-3.987), and 12-17 months (AOR: 2.460, 95% CI: 1.914-3.163) indicated higher odds than counterparts. Having Postnatal Care (PNC) follow-up, counseling on infant and young child feeding (IYCF) practices, and no history of child illness were associated with higher odds (AOR: 3.155, 95% CI: 2.104-4.732), (AOR: 2.960, 95% CI: 2.288-3.829), and (AOR: 2.420, 95% CI: 1.765-3.318), respectively. Maternal knowledge of dietary diversity, urban resid