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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: J Nutr. 2021 Jun 1;151(6):1646–1655. doi: 10.1093/jn/nxab024

FIGURE 5.

FIGURE 5

Adjusted changes in mean hemoglobin differences by cumulative IFA tablets consumed over 1 school year among adolescent schoolgirls in the Northern and Volta regions of Ghana (n = 1307). Follow-up occurred 9 months after baseline. Estimates are weighted to be representative of all eligible girls in the school. Estimates and P values are calculated from generalized mixed models using maximum likelihood estimation, and accounted for clustering in school and intra-individual covariance. Adjusted for demographics, school level and geography, health characteristics, and diet. P value for trend = 0.029. Abbreviation: IFA, iron and folic acid.