Nutritional knowledge, nutritional status and associated factors among pregnant adolescents in the West Arsi Zone, central Ethiopia

Abstract When pregnancy occur among teenagers; there is a competition for nutrients between the still-growing adolescent mother and her fetus. Pregnant adolescents’ nutrition issues are not addressed well and changes are too slow in Ethiopia. This study aimed to study, nutrition knowledge, nutritional status and associated factors among pregnant adolescents in West Arsi , central Ethiopia. We conducted a cross-sectional study of 426 pregnant adolescents between January 1 and January 25, 2023. Data were collected using kobo collect and analyzed using SPSS version 25. We performed linear regression to identify independent predictors of nutritional status and multivariable logistic regression analyses to identify nutritional knowledge. Odds ratios (ORs) with 95% confidence intervals were estimated to show the strength of the association. Magnitude of good nutrition knowledge was 23.7%, 95% CI (21.4–25.3%), and the odds of having good nutrition knowledge was 7.5 times higher among participants whose education level was above college compared with illiterate participants (AOR = 7.5, 95% CI = (5.27–9.38),the odds of having good nutrition knowledge was 8 times higher among adolescent who had ANC visits, (AOR = 8, 95% CI = (3.63–13.85), and the odds of having good nutrition knowledge was 5 times higher among adolescents who received nutrition education (AOR = 5, 95% CI = (3.67- 13.53). Receiving nutrition education (β = 0.25, P = 0.002) and good nutrition knowledge (β = 0.08, P < 0.001) were positively associated with nutritional status; however, food insecurity (β = − 0.93, P < 0.001) was negatively associated with nutritional status. The nutrition knowledge of pregnant adolescents was suboptimal; educational status, ANC visits and nutrition education were associated with good nutrition knowledge, whereas food insecurity, low nutrition knowledge, and not receiving nutrition education were predictors of poor nutritional status. Nutritional education interventions, increasing utilization of ANC, and interventions for improving food security are strongly recommended.