NDHS 2023–24: Timely Hepatitis B Birth Dose (≤24 h) in Nigeria — Analytic Dataset & Manuscript Package Overview.This deposit contains the analysis-ready Stata dataset and companion materials used to quantify timely hepatitis B birth-dose (HepB-BD ≤24 hours) coverage in Nigeria using the 2023–24 Nigeria Demographic and Health Survey (NDHS). It supports national and state-level estimation and equity analyses aligned with day-zero protection goals. What this deposit includes. NDHS2023_24_Analytic_HepBBD_timeliness_CMCaware.dta — de-identified, analysis-ready dataset (derived from NDHS 2023–24 public-use microdata). codebook.csv and VARIABLE_LIST.md — machine- and human-readable documentation of variables, types, missingness, and brief notes. Manuscript materials: BWHO_HepBBD_MainText.docx, BWHO_Main_Tables (1).docx, BWHO_Supplement_FINAL.docx. Integrity and documentation files: README.md, CITATION.cff, MANIFEST.csv, checksums.sha256, LICENSE_DATA.txt, METADATA.json. Intended use & reproducibility. The dataset is survey-ready for Stata (svyset) and R (survey). Survey weights, strata, and PSU variables are preserved; consult codebook.csv for exact variable names. Report design-consistent point estimates with 95% confidence intervals. The file supports state-resolved indicators, subgroup contrasts (e.g., residence, wealth, education, place of birth, early postnatal contact), and alternative timing windows (e.g., day 0; ≤1/≤2/≤3/≤7 days) where applicable. Denominators & definitions (to prevent bias). Any HepB-BD information: child has documented receipt/status of HepB-BD (denominator for “any dose”). Evaluable timeliness: child has precise dates allowing assessment of ≤24 h (denominator for timely/late).Children with non-dated “yes” are included for “any dose” but excluded from timeliness denominators. Provenance & ethics.This is a secondary analysis of de-identified NDHS 2023–24 public-use microdata under the DHS data-use agreement. No direct identifiers are included. Users should acknowledge the DHS Programme and the National Population Commission of Nigeria as the primary data sources. Licence.Dataset and documentation are released under CC BY 4.0. You may share and adapt with attribution. When reusing, please cite this deposit and the underlying DHS source. How to cite.Orimadegun A, et al. NDHS 2023–24 Analytic Dataset for Timely Hepatitis B Birth Dose (≤24 h) in Nigeria — Data & Reproducibility Package. Zenodo; 2025. DOI: (insert the DOI after reservation/publication). Related identifiers (add as appropriate). Journal article DOI (this dataset isSupplementTo the article). DHS programme page for NDHS 2023–24 or relevant documentation (isDerivedFrom). If this deposit is a new version of a prior Zenodo record, add the earlier DOI under isNewVersionOf. Contact.Adebola Orimadegun, University of Ibadan. Email: (insert preferred contact email). Versioning.Version 1.0.0 (2025-11-11). Subsequent corrections or extensions (e.g., code archive, additional figures) will be issued as new versions and cross-linked in Zenodo.